diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches
index 2a8e89e13e45..7e9abb8a276b 100644
--- a/Documentation/SubmittingPatches
+++ b/Documentation/SubmittingPatches
@@ -132,6 +132,20 @@ Example:
platform_set_drvdata(), but left the variable "dev" unused,
delete it.
+If your patch fixes a bug in a specific commit, e.g. you found an issue using
+git-bisect, please use the 'Fixes:' tag with the first 12 characters of the
+SHA-1 ID, and the one line summary.
+Example:
+
+ Fixes: e21d2170f366 ("video: remove unnecessary platform_set_drvdata()")
+
+The following git-config settings can be used to add a pretty format for
+outputting the above style in the git log or git show commands
+
+ [core]
+ abbrev = 12
+ [pretty]
+ fixes = Fixes: %h (\"%s\")
3) Separate your changes.
@@ -443,7 +457,7 @@ person it names. This tag documents that potentially interested parties
have been included in the discussion
-14) Using Reported-by:, Tested-by:, Reviewed-by: and Suggested-by:
+14) Using Reported-by:, Tested-by:, Reviewed-by:, Suggested-by: and Fixes:
If this patch fixes a problem reported by somebody else, consider adding a
Reported-by: tag to credit the reporter for their contribution. Please
@@ -498,6 +512,12 @@ idea was not posted in a public forum. That said, if we diligently credit our
idea reporters, they will, hopefully, be inspired to help us again in the
future.
+A Fixes: tag indicates that the patch fixes an issue in a previous commit. It
+is used to make it easy to determine where a bug originated, which can help
+review a bug fix. This tag also assists the stable kernel team in determining
+which stable kernel versions should receive your fix. This is the preferred
+method for indicating a bug fixed by the patch. See #2 above for more details.
+
15) The canonical patch format
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index 4937e6fff9b4..b3429aec444c 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -540,14 +540,13 @@ Note:
5.3 swappiness
-Similar to /proc/sys/vm/swappiness, but only affecting reclaim that is
-triggered by this cgroup's hard limit. The tunable in the root cgroup
-corresponds to the global swappiness setting.
+Overrides /proc/sys/vm/swappiness for the particular group. The tunable
+in the root cgroup corresponds to the global swappiness setting.
-Please note that unlike the global swappiness, memcg knob set to 0
-really prevents from any swapping even if there is a swap storage
-available. This might lead to memcg OOM killer if there are no file
-pages to reclaim.
+Please note that unlike during the global reclaim, limit reclaim
+enforces that 0 swappiness really prevents from any swapping even if
+there is a swap storage available. This might lead to memcg OOM killer
+if there are no file pages to reclaim.
5.4 failcnt
diff --git a/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt b/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
index 31406fd4a43e..5c199ee044cb 100644
--- a/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
+++ b/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
@@ -9,6 +9,9 @@ Required properties:
- interrupts: rtc alarm/event interrupt
- #clock-cells: the value should be 0
+Optional properties:
+- clock-output-names: From common clock binding
+
Example:
hym8563: hym8563@51 {
diff --git a/Documentation/devicetree/bindings/rtc/xgene-rtc.txt b/Documentation/devicetree/bindings/rtc/xgene-rtc.txt
new file mode 100644
index 000000000000..fd195c358446
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/xgene-rtc.txt
@@ -0,0 +1,28 @@
+* APM X-Gene Real Time Clock
+
+RTC controller for the APM X-Gene Real Time Clock
+
+Required properties:
+- compatible : Should be "apm,xgene-rtc"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: IRQ line for the RTC.
+- #clock-cells: Should be 1.
+- clocks: Reference to the clock entry.
+
+Example:
+
+rtcclk: rtcclk {
+ compatible = "fixed-clock";
+ #clock-cells = <1>;
+ clock-frequency = <100000000>;
+ clock-output-names = "rtcclk";
+};
+
+rtc: rtc@10510000 {
+ compatible = "apm,xgene-rtc";
+ reg = <0x0 0x10510000 0x0 0x400>;
+ interrupts = <0x0 0x46 0x4>;
+ #clock-cells = <1>;
+ clocks = <&rtcclk 0>;
+};
diff --git a/Documentation/filesystems/seq_file.txt b/Documentation/filesystems/seq_file.txt
index a1e2e0dda907..1fe0ccb1af55 100644
--- a/Documentation/filesystems/seq_file.txt
+++ b/Documentation/filesystems/seq_file.txt
@@ -54,6 +54,15 @@ how the mechanism works without getting lost in other details. (Those
wanting to see the full source for this module can find it at
http://lwn.net/Articles/22359/).
+Deprecated create_proc_entry
+
+Note that the above article uses create_proc_entry which was removed in
+kernel 3.10. Current versions require the following update
+
+- entry = create_proc_entry("sequence", 0, NULL);
+- if (entry)
+- entry->proc_fops = &ct_file_ops;
++ entry = proc_create("sequence", 0, NULL, &ct_file_ops);
The iterator interface
diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt
index 4a93e98b290a..ce1126aceed8 100644
--- a/Documentation/filesystems/vfat.txt
+++ b/Documentation/filesystems/vfat.txt
@@ -172,6 +172,11 @@ nfs=stale_rw|nostale_ro
To maintain backward compatibility, '-o nfs' is also accepted,
defaulting to stale_rw
+dos1xfloppy -- If set, use a fallback default BIOS Parameter Block
+ configuration, determined by backing device size. These static
+ parameters match defaults assumed by DOS 1.x for 160 kiB,
+ 180 kiB, 320 kiB, and 360 kiB floppies and floppy images.
+
<bool>: 0,1,yes,no,true,false
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 9973a7e2e0ac..b9f67781c577 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2361,6 +2361,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
timeout < 0: reboot immediately
Format: <timeout>
+ crash_kexec_post_notifiers
+ Run kdump after running panic-notifiers and dumping
+ kmsg. This only for the users who doubt kdump always
+ succeeds in any situation.
+ Note that this also increases risks of kdump failure,
+ because some panic notifiers can make the crashed
+ kernel more unstable.
+
parkbd.port= [HW] Parallel port number the keyboard adapter is
connected to, default is 0.
Format: <parport#>
diff --git a/Documentation/kmemleak.txt b/Documentation/kmemleak.txt
index a7563ec4ea7b..b772418bf064 100644
--- a/Documentation/kmemleak.txt
+++ b/Documentation/kmemleak.txt
@@ -142,6 +142,7 @@ kmemleak_alloc_percpu - notify of a percpu memory block allocation
kmemleak_free - notify of a memory block freeing
kmemleak_free_part - notify of a partial memory block freeing
kmemleak_free_percpu - notify of a percpu memory block freeing
+kmemleak_update_trace - update object allocation stack trace
kmemleak_not_leak - mark an object as not a leak
kmemleak_ignore - do not scan or report an object as leak
kmemleak_scan_area - add scan areas inside a memory block
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index 46412bded104..f1dc4a215593 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -115,8 +115,8 @@ For example, consider the following sequence of events:
CPU 1 CPU 2
=============== ===============
{ A == 1; B == 2 }
- A = 3; x = A;
- B = 4; y = B;
+ A = 3; x = B;
+ B = 4; y = A;
The set of accesses as seen by the memory system in the middle can be arranged
in 24 different combinations:
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 9886c3d57fc2..708bb7f1b7e0 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -77,6 +77,7 @@ show up in /proc/sys/kernel:
- shmmni
- stop-a [ SPARC only ]
- sysrq ==> Documentation/sysrq.txt
+- sysctl_writes_strict
- tainted
- threads-max
- unknown_nmi_panic
@@ -762,6 +763,26 @@ without users and with a dead originative process will be destroyed.
==============================================================
+sysctl_writes_strict:
+
+Control how file position affects the behavior of updating sysctl values
+via the /proc/sys interface:
+
+ -1 - Legacy per-write sysctl value handling, with no printk warnings.
+ Each write syscall must fully contain the sysctl value to be
+ written, and multiple writes on the same sysctl file descriptor
+ will rewrite the sysctl value, regardless of file position.
+ 0 - (default) Same behavior as above, but warn about processes that
+ perform writes to a sysctl file descriptor when the file position
+ is not 0.
+ 1 - Respect file position when writing sysctl strings. Multiple writes
+ will append to the sysctl value buffer. Anything past the max length
+ of the sysctl value buffer will be ignored. Writes to numeric sysctl
+ entries must always be at file position 0 and the value must be
+ fully contained in the buffer sent in the write syscall.
+
+==============================================================
+
tainted:
Non-zero if the kernel has been tainted. Numeric values, which
diff --git a/Documentation/vm/remap_file_pages.txt b/Documentation/vm/remap_file_pages.txt
new file mode 100644
index 000000000000..560e4363a55d
--- /dev/null
+++ b/Documentation/vm/remap_file_pages.txt
@@ -0,0 +1,28 @@
+The remap_file_pages() system call is used to create a nonlinear mapping,
+that is, a mapping in which the pages of the file are mapped into a
+nonsequential order in memory. The advantage of using remap_file_pages()
+over using repeated calls to mmap(2) is that the former approach does not
+require the kernel to create additional VMA (Virtual Memory Area) data
+structures.
+
+Supporting of nonlinear mapping requires significant amount of non-trivial
+code in kernel virtual memory subsystem including hot paths. Also to get
+nonlinear mapping work kernel need a way to distinguish normal page table
+entries from entries with file offset (pte_file). Kernel reserves flag in
+PTE for this purpose. PTE flags are scarce resource especially on some CPU
+architectures. It would be nice to free up the flag for other usage.
+
+Fortunately, there are not many users of remap_file_pages() in the wild.
+It's only known that one enterprise RDBMS implementation uses the syscall
+on 32-bit systems to map files bigger than can linearly fit into 32-bit
+virtual address space. This use-case is not critical anymore since 64-bit
+systems are widely available.
+
+The plan is to deprecate the syscall and replace it with an emulation.
+The emulation will create new VMAs instead of nonlinear mappings. It's
+going to work slower for rare users of remap_file_pages() but ABI is
+preserved.
+
+One side effect of emulation (apart from performance) is that user can hit
+vm.max_map_count limit more easily due to additional VMAs. See comment for
+DEFAULT_MAX_MAP_COUNT for more details on the limit.
diff --git a/MAINTAINERS b/MAINTAINERS
index 7d101d5ba953..f98da9025d7d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -210,6 +210,13 @@ S: Supported
F: Documentation/scsi/aacraid.txt
F: drivers/scsi/aacraid/
+ABI/API
+L: linux-api@vger.kernel.org
+F: Documentation/ABI/
+F: include/linux/syscalls.h
+F: include/uapi/
+F: kernel/sys_ni.c
+
ABIT UGURU 1,2 HARDWARE MONITOR DRIVER
M: Hans de Goede <hdegoede@redhat.com>
L: lm-sensors@lm-sensors.org
@@ -647,7 +654,7 @@ F: sound/soc/codecs/ssm*
F: sound/soc/codecs/sigmadsp.*
ANALOG DEVICES INC ASOC DRIVERS
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
W: http://blackfin.uclinux.org/
S: Supported
@@ -1758,54 +1765,54 @@ F: include/uapi/linux/bfs_fs.h
BLACKFIN ARCHITECTURE
M: Steven Miao <realmz6@gmail.com>
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
T: git git://git.code.sf.net/p/adi-linux/code
W: http://blackfin.uclinux.org
S: Supported
F: arch/blackfin/
BLACKFIN EMAC DRIVER
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
F: drivers/net/ethernet/adi/
BLACKFIN RTC DRIVER
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
F: drivers/rtc/rtc-bfin.c
BLACKFIN SDH DRIVER
M: Sonic Zhang <sonic.zhang@analog.com>
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
F: drivers/mmc/host/bfin_sdh.c
BLACKFIN SERIAL DRIVER
M: Sonic Zhang <sonic.zhang@analog.com>
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
F: drivers/tty/serial/bfin_uart.c
BLACKFIN WATCHDOG DRIVER
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
F: drivers/watchdog/bfin_wdt.c
BLACKFIN I2C TWI DRIVER
M: Sonic Zhang <sonic.zhang@analog.com>
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org/
S: Supported
F: drivers/i2c/busses/i2c-bfin-twi.c
BLACKFIN MEDIA DRIVER
M: Scott Jiang <scott.jiang.linux@gmail.com>
-L: adi-buildroot-devel@lists.sourceforge.net
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org/
S: Supported
F: drivers/media/platform/blackfin/
diff --git a/arch/arm/kernel/isa.c b/arch/arm/kernel/isa.c
index 346485910732..9d1cf7156895 100644
--- a/arch/arm/kernel/isa.c
+++ b/arch/arm/kernel/isa.c
@@ -20,7 +20,7 @@
static unsigned int isa_membase, isa_portbase, isa_portshift;
-static ctl_table ctl_isa_vars[4] = {
+static struct ctl_table ctl_isa_vars[4] = {
{
.procname = "membase",
.data = &isa_membase,
@@ -44,7 +44,7 @@ static ctl_table ctl_isa_vars[4] = {
static struct ctl_table_header *isa_sysctl_header;
-static ctl_table ctl_isa[2] = {
+static struct ctl_table ctl_isa[2] = {
{
.procname = "isa",
.mode = 0555,
@@ -52,7 +52,7 @@ static ctl_table ctl_isa[2] = {
}, {}
};
-static ctl_table ctl_bus[2] = {
+static struct ctl_table ctl_bus[2] = {
{
.procname = "bus",
.mode = 0555,
diff --git a/arch/arm/mach-at91/sysirq_mask.c b/arch/arm/mach-at91/sysirq_mask.c
index 2ba694f9626b..f8bc3511a8c8 100644
--- a/arch/arm/mach-at91/sysirq_mask.c
+++ b/arch/arm/mach-at91/sysirq_mask.c
@@ -25,24 +25,28 @@
#include "generic.h"
-#define AT91_RTC_IDR 0x24 /* Interrupt Disable Register */
-#define AT91_RTC_IMR 0x28 /* Interrupt Mask Register */
+#define AT91_RTC_IDR 0x24 /* Interrupt Disable Register */
+#define AT91_RTC_IMR 0x28 /* Interrupt Mask Register */
+#define AT91_RTC_IRQ_MASK 0x1f /* Available IRQs mask */
void __init at91_sysirq_mask_rtc(u32 rtc_base)
{
void __iomem *base;
- u32 mask;
base = ioremap(rtc_base, 64);
if (!base)
return;
- mask = readl_relaxed(base + AT91_RTC_IMR);
- if (mask) {
- pr_info("AT91: Disabling rtc irq\n");
- writel_relaxed(mask, base + AT91_RTC_IDR);
- (void)readl_relaxed(base + AT91_RTC_IMR); /* flush */
- }
+ /*
+ * sam9x5 SoCs have the following errata:
+ * "RTC: Interrupt Mask Register cannot be used
+ * Interrupt Mask Register read always returns 0."
+ *
+ * Hence we're not relying on IMR values to disable
+ * interrupts.
+ */
+ writel_relaxed(AT91_RTC_IRQ_MASK, base + AT91_RTC_IDR);
+ (void)readl_relaxed(base + AT91_RTC_IMR); /* flush */
iounmap(base);
}
diff --git a/arch/arm64/boot/dts/apm-storm.dtsi b/arch/arm64/boot/dts/apm-storm.dtsi
index f8c40a66e65d..c5f0a47a1375 100644
--- a/arch/arm64/boot/dts/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm-storm.dtsi
@@ -257,6 +257,19 @@
enable-offset = <0x0>;
enable-mask = <0x39>;
};
+
+ rtcclk: rtcclk@17000000 {
+ compatible = "apm,xgene-device-clock";
+ #clock-cells = <1>;
+ clocks = <&socplldiv2 0>;
+ reg = <0x0 0x17000000 0x0 0x2000>;
+ reg-names = "csr-reg";
+ csr-offset = <0xc>;
+ csr-mask = <0x2>;
+ enable-offset = <0x10>;
+ enable-mask = <0x2>;
+ clock-output-names = "rtcclk";
+ };
};
serial0: serial@1c020000 {
@@ -342,5 +355,13 @@
phys = <&phy3 0>;
phy-names = "sata-phy";
};
+
+ rtc: rtc@10510000 {
+ compatible = "apm,xgene-rtc";
+ reg = <0x0 0x10510000 0x0 0x400>;
+ interrupts = <0x0 0x46 0x4>;
+ #clock-cells = <1>;
+ clocks = <&rtcclk 0>;
+ };
};
};
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index e1f88e028cfe..8b8fe671b1a6 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -117,6 +117,7 @@ put_reg(struct task_struct *task, unsigned long regno, unsigned long data)
int
is_user_addr_valid(struct task_struct *child, unsigned long start, unsigned long len)
{
+ bool valid;
struct vm_area_struct *vma;
struct sram_list_struct *sraml;
@@ -124,9 +125,12 @@ is_user_addr_valid(struct task_struct *child, unsigned long start, unsigned long
if (start + len < start)
return -EIO;
+ down_read(&child->mm->mmap_sem);
vma = find_vma(child->mm, start);
- if (vma && start >= vma->vm_start && start + len <= vma->vm_end)
- return 0;
+ valid = vma && start >= vma->vm_start && start + len <= vma->vm_end;
+ up_read(&child->mm->mmap_sem);
+ if (valid)
+ return 0;
for (sraml = child->mm->context.sram_list; sraml; sraml = sraml->next)
if (start >= (unsigned long)sraml->addr
diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index f4374bae4fb4..64285e0d3481 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -833,8 +833,8 @@ static int __init gpio_init(void)
printk(KERN_INFO "ETRAX 100LX GPIO driver v2.5, (c) 2001-2008 "
"Axis Communications AB\n");
/* We call etrax_gpio_wake_up_check() from timer interrupt and
- * from cpu_idle() in kernel/process.c
- * The check in cpu_idle() reduces latency from ~15 ms to ~6 ms
+ * from default_idle() in kernel/process.c
+ * The check in default_idle() reduces latency from ~15 ms to ~6 ms
* in some tests.
*/
res = request_irq(TIMER0_IRQ_NBR, gpio_poll_timer_interrupt,
diff --git a/arch/cris/arch-v32/drivers/mach-fs/gpio.c b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
index 9e54273af0ca..009f4ee1bd09 100644
--- a/arch/cris/arch-v32/drivers/mach-fs/gpio.c
+++ b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
@@ -958,11 +958,7 @@ gpio_init(void)
printk(KERN_INFO "ETRAX FS GPIO driver v2.5, (c) 2003-2007 "
"Axis Communications AB\n");
- /* We call etrax_gpio_wake_up_check() from timer interrupt and
- * from cpu_idle() in kernel/process.c
- * The check in cpu_idle() reduces latency from ~15 ms to ~6 ms
- * in some tests.
- */
+ /* We call etrax_gpio_wake_up_check() from timer interrupt */
if (request_irq(TIMER0_INTR_VECT, gpio_poll_timer_interrupt,
IRQF_SHARED, "gpio poll", &alarmlist))
printk(KERN_ERR "timer0 irq for gpio\n");
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index b942f4032d7a..2955f359e2a7 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -237,7 +237,7 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
}
#ifdef CONFIG_SYSCTL
-static ctl_table kdump_ctl_table[] = {
+static struct ctl_table kdump_ctl_table[] = {
{
.procname = "kdump_on_init",
.data = &kdump_on_init,
@@ -255,7 +255,7 @@ static ctl_table kdump_ctl_table[] = {
{ }
};
-static ctl_table sys_table[] = {
+static struct ctl_table sys_table[] = {
{
.procname = "kernel",
.mode = 0555,
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index d841c4bd6864..5845ffea67c3 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -521,7 +521,7 @@ static pmu_config_t *pmu_conf;
pfm_sysctl_t pfm_sysctl;
EXPORT_SYMBOL(pfm_sysctl);
-static ctl_table pfm_ctl_table[]={
+static struct ctl_table pfm_ctl_table[] = {
{
.procname = "debug",
.data = &pfm_sysctl.debug,
@@ -552,7 +552,7 @@ static ctl_table pfm_ctl_table[]={
},
{}
};
-static ctl_table pfm_sysctl_dir[] = {
+static struct ctl_table pfm_sysctl_dir[] = {
{
.procname = "perfmon",
.mode = 0555,
@@ -560,7 +560,7 @@ static ctl_table pfm_sysctl_dir[] = {
},
{}
};
-static ctl_table pfm_sysctl_root[] = {
+static struct ctl_table pfm_sysctl_root[] = {
{
.procname = "kernel",
.mode = 0555,
diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h
index 214320b50384..8c8ce5e1ee0e 100644
--- a/arch/m68k/include/asm/signal.h
+++ b/arch/m68k/include/asm/signal.h
@@ -60,15 +60,6 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
__const_sigismember(set,sig) : \
__gen_sigismember(set,sig))
-static inline int sigfindinword(unsigned long word)
-{
- asm ("bfffo %1{#0,#0},%0"
- : "=d" (word)
- : "d" (word & -word)
- : "cc");
- return word ^ 31;
-}
-
#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
#ifndef __uClinux__
diff --git a/arch/mips/dec/Makefile b/arch/mips/dec/Makefile
index 3d5d2c56de8d..bd74e05c90b0 100644
--- a/arch/mips/dec/Makefile
+++ b/arch/mips/dec/Makefile
@@ -3,7 +3,7 @@
#
obj-y := ecc-berr.o int-handler.o ioasic-irq.o kn01-berr.o \
- kn02-irq.o kn02xa-berr.o reset.o setup.o time.o
+ kn02-irq.o kn02xa-berr.o platform.o reset.o setup.o time.o
obj-$(CONFIG_TC) += tc.o
obj-$(CONFIG_CPU_HAS_WB) += wbflush.o
diff --git a/arch/mips/dec/platform.c b/arch/mips/dec/platform.c
new file mode 100644
index 000000000000..c7ac86af847a
--- /dev/null
+++ b/arch/mips/dec/platform.c
@@ -0,0 +1,44 @@
+/*
+ * DEC platform devices.
+ *
+ * Copyright (c) 2014 Maciej W. Rozycki
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/mc146818rtc.h>
+#include <linux/platform_device.h>
+
+static struct resource dec_rtc_resources[] = {
+ {
+ .name = "rtc",
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct cmos_rtc_board_info dec_rtc_info = {
+ .flags = CMOS_RTC_FLAGS_NOFREQ,
+ .address_space = 64,
+};
+
+static struct platform_device dec_rtc_device = {
+ .name = "rtc_cmos",
+ .id = PLATFORM_DEVID_NONE,
+ .dev.platform_data = &dec_rtc_info,
+ .resource = dec_rtc_resources,
+ .num_resources = ARRAY_SIZE(dec_rtc_resources),
+};
+
+static int __init dec_add_devices(void)
+{
+ dec_rtc_resources[0].start = RTC_PORT(0);
+ dec_rtc_resources[0].end = RTC_PORT(0) + dec_kn_slot_size - 1;
+ return platform_device_register(&dec_rtc_device);
+}
+
+device_initcall(dec_add_devices);
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index ca1cd7459c4a..248ee7e5bebd 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -304,7 +304,7 @@ void notrace restore_interrupts(void)
* being re-enabled and generally sanitized the lazy irq state,
* and in the latter case it will leave with interrupts hard
* disabled and marked as such, so the local_irq_enable() call
- * in cpu_idle() will properly re-enable everything.
+ * in arch_cpu_idle() will properly re-enable everything.
*/
bool prep_irq_for_idle(void)
{
diff --git a/arch/tile/kernel/proc.c b/arch/tile/kernel/proc.c
index 681100c59fda..6829a9508649 100644
--- a/arch/tile/kernel/proc.c
+++ b/arch/tile/kernel/proc.c
@@ -113,7 +113,7 @@ arch_initcall(proc_tile_init);
* Support /proc/sys/tile directory
*/
-static ctl_table unaligned_subtable[] = {
+static struct ctl_table unaligned_subtable[] = {
{
.procname = "enabled",
.data = &unaligned_fixup,
@@ -138,7 +138,7 @@ static ctl_table unaligned_subtable[] = {
{}
};
-static ctl_table unaligned_table[] = {
+static struct ctl_table unaligned_table[] = {
{
.procname = "unaligned_fixup",
.mode = 0555,
diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 35e67a457182..31eab867e6d3 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -92,12 +92,6 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
? __const_sigismember((set), (sig)) \
: __gen_sigismember((set), (sig)))
-static inline int sigfindinword(unsigned long word)
-{
- asm("bsfl %1,%0" : "=r"(word) : "rm"(word) : "cc");
- return word;
-}
-
struct pt_regs;
#else /* __i386__ */
diff --git a/block/bounce.c b/block/bounce.c
index 523918b8c6dc..ab21ba203d5c 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -3,6 +3,8 @@
* - Split from highmem.c
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/mm.h>
#include <linux/export.h>
#include <linux/swap.h>
@@ -15,6 +17,7 @@
#include <linux/hash.h>
#include <linux/highmem.h>
#include <linux/bootmem.h>
+#include <linux/printk.h>
#include <asm/tlbflush.h>
#include <trace/events/block.h>
@@ -34,7 +37,7 @@ static __init int init_emergency_pool(void)
page_pool = mempool_create_page_pool(POOL_SIZE, 0);
BUG_ON(!page_pool);
- printk("bounce pool size: %d pages\n", POOL_SIZE);
+ pr_info("pool size: %d pages\n", POOL_SIZE);
return 0;
}
@@ -86,7 +89,7 @@ int init_emergency_isa_pool(void)
mempool_free_pages, (void *) 0);
BUG_ON(!isa_page_pool);
- printk("isa bounce pool size: %d pages\n", ISA_POOL_SIZE);
+ pr_info("isa pool size: %d pages\n", ISA_POOL_SIZE);
return 0;
}
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 56a027d6115e..fb31b8ee4372 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -243,14 +243,11 @@ static int nbd_send_req(struct nbd_device *nbd, struct request *req)
struct nbd_request request;
unsigned long size = blk_rq_bytes(req);
+ memset(&request, 0, sizeof(request));
request.magic = htonl(NBD_REQUEST_MAGIC);
request.type = htonl(nbd_cmd(req));
- if (nbd_cmd(req) == NBD_CMD_FLUSH) {
- /* Other values are reserved for FLUSH requests. */
- request.from = 0;
- request.len = 0;
- } else {
+ if (nbd_cmd(req) != NBD_CMD_FLUSH && nbd_cmd(req) != NBD_CMD_DISC) {
request.from = cpu_to_be64((u64)blk_rq_pos(req) << 9);
request.len = htonl(size);
}
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 49ac5662585b..2a44767891f5 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -3470,7 +3470,7 @@ static int cdrom_print_info(const char *header, int val, char *info,
return 0;
}
-static int cdrom_sysctl_info(ctl_table *ctl, int write,
+static int cdrom_sysctl_info(struct ctl_table *ctl, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int pos;
@@ -3583,7 +3583,7 @@ static void cdrom_update_settings(void)
mutex_unlock(&cdrom_mutex);
}
-static int cdrom_sysctl_handler(ctl_table *ctl, int write,
+static int cdrom_sysctl_handler(struct ctl_table *ctl, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int ret;
@@ -3609,7 +3609,7 @@ static int cdrom_sysctl_handler(ctl_table *ctl, int write,
}
/* Place files in /proc/sys/dev/cdrom */
-static ctl_table cdrom_table[] = {
+static struct ctl_table cdrom_table[] = {
{
.procname = "info",
.data = &cdrom_sysctl_settings.info,
@@ -3655,7 +3655,7 @@ static ctl_table cdrom_table[] = {
{ }
};
-static ctl_table cdrom_cdrom_table[] = {
+static struct ctl_table cdrom_cdrom_table[] = {
{
.procname = "cdrom",
.maxlen = 0,
@@ -3666,7 +3666,7 @@ static ctl_table cdrom_cdrom_table[] = {
};
/* Make sure that /proc/sys/dev is there */
-static ctl_table cdrom_root_table[] = {
+static struct ctl_table cdrom_root_table[] = {
{
.procname = "dev",
.maxlen = 0,
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 06cea7ff3a7c..4ad71ef2cd59 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1582,10 +1582,10 @@ static int proc_do_uuid(struct ctl_table *table, int write,
/*
* Return entropy available scaled to integral bits
*/
-static int proc_do_entropy(ctl_table *table, int write,
+static int proc_do_entropy(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
- ctl_table fake_table;
+ struct ctl_table fake_table;
int entropy_count;
entropy_count = *(int *)table->data >> ENTROPY_SHIFT;
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index 92ed045a5f93..3b470801a04f 100644
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -31,7 +31,7 @@
#define PARPORT_MIN_SPINTIME_VALUE 1
#define PARPORT_MAX_SPINTIME_VALUE 1000
-static int do_active_device(ctl_table *table, int write,
+static int do_active_device(struct ctl_table *table, int write,
void __user *result, size_t *lenp, loff_t *ppos)
{
struct parport *port = (struct parport *)table->extra1;
@@ -68,7 +68,7 @@ static int do_active_device(ctl_table *table, int write,
}
#ifdef CONFIG_PARPORT_1284
-static int do_autoprobe(ctl_table *table, int write,
+static int do_autoprobe(struct ctl_table *table, int write,
void __user *result, size_t *lenp, loff_t *ppos)
{
struct parport_device_info *info = table->extra2;
@@ -110,9 +110,9 @@ static int do_autoprobe(ctl_table *table, int write,
}
#endif /* IEEE1284.3 support. */
-static int do_hardware_base_addr (ctl_table *table, int write,
- void __user *result,
- size_t *lenp, loff_t *ppos)
+static int do_hardware_base_addr(struct ctl_table *table, int write,
+ void __user *result,
+ size_t *lenp, loff_t *ppos)
{
struct parport *port = (struct parport *)table->extra1;
char buffer[20];
@@ -138,9 +138,9 @@ static int do_hardware_base_addr (ctl_table *table, int write,
return copy_to_user(result, buffer, len) ? -EFAULT : 0;
}
-static int do_hardware_irq (ctl_table *table, int write,
- void __user *result,
- size_t *lenp, loff_t *ppos)
+static int do_hardware_irq(struct ctl_table *table, int write,
+ void __user *result,
+ size_t *lenp, loff_t *ppos)
{
struct parport *port = (struct parport *)table->extra1;
char buffer[20];
@@ -166,9 +166,9 @@ static int do_hardware_irq (ctl_table *table, int write,
return copy_to_user(result, buffer, len) ? -EFAULT : 0;
}
-static int do_hardware_dma (ctl_table *table, int write,
- void __user *result,
- size_t *lenp, loff_t *ppos)
+static int do_hardware_dma(struct ctl_table *table, int write,
+ void __user *result,
+ size_t *lenp, loff_t *ppos)
{
struct parport *port = (struct parport *)table->extra1;
char buffer[20];
@@ -194,9 +194,9 @@ static int do_hardware_dma (ctl_table *table, int write,
return copy_to_user(result, buffer, len) ? -EFAULT : 0;
}
-static int do_hardware_modes (ctl_table *table, int write,
- void __user *result,
- size_t *lenp, loff_t *ppos)
+static int do_hardware_modes(struct ctl_table *table, int write,
+ void __user *result,
+ size_t *lenp, loff_t *ppos)
{
struct parport *port = (struct parport *)table->extra1;
char buffer[40];
@@ -255,11 +255,11 @@ PARPORT_MAX_SPINTIME_VALUE;
struct parport_sysctl_table {
struct ctl_table_header *sysctl_header;
- ctl_table vars[12];
- ctl_table device_dir[2];
- ctl_table port_dir[2];
- ctl_table parport_dir[2];
- ctl_table dev_dir[2];
+ struct ctl_table vars[12];
+ struct ctl_table device_dir[2];
+ struct ctl_table port_dir[2];
+ struct ctl_table parport_dir[2];
+ struct ctl_table dev_dir[2];
};
static const struct parport_sysctl_table parport_sysctl_template = {
@@ -369,12 +369,12 @@ static const struct parport_sysctl_table parport_sysctl_template = {
struct parport_device_sysctl_table
{
struct ctl_table_header *sysctl_header;
- ctl_table vars[2];
- ctl_table device_dir[2];
- ctl_table devices_root_dir[2];
- ctl_table port_dir[2];
- ctl_table parport_dir[2];
- ctl_table dev_dir[2];
+ struct ctl_table vars[2];
+ struct ctl_table device_dir[2];
+ struct ctl_table devices_root_dir[2];
+ struct ctl_table port_dir[2];
+ struct ctl_table parport_dir[2];
+ struct ctl_table dev_dir[2];
};
static const struct parport_device_sysctl_table
@@ -422,10 +422,10 @@ parport_device_sysctl_template = {
struct parport_default_sysctl_table
{
struct ctl_table_header *sysctl_header;
- ctl_table vars[3];
- ctl_table default_dir[2];
- ctl_table parport_dir[2];
- ctl_table dev_dir[2];
+ struct ctl_table vars[3];
+ struct ctl_table default_dir[2];
+ struct ctl_table parport_dir[2];
+ struct ctl_table dev_dir[2];
};
static struct parport_default_sysctl_table
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 1753dc693c15..2ca1a0b3ad57 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -768,15 +768,10 @@ static int tsi721_enable_msix(struct tsi721_device *priv)
}
#endif /* CONFIG_RAPIDIO_DMA_ENGINE */
- err = pci_enable_msix(priv->pdev, entries, ARRAY_SIZE(entries));
+ err = pci_enable_msix_exact(priv->pdev, entries, ARRAY_SIZE(entries));
if (err) {
- if (err > 0)
- dev_info(&priv->pdev->dev,
- "Only %d MSI-X vectors available, "
- "not using MSI-X\n", err);
- else
- dev_err(&priv->pdev->dev,
- "Failed to enable MSI-X (err=%d)\n", err);
+ dev_err(&priv->pdev->dev,
+ "Failed to enable MSI-X (err=%d)\n", err);
return err;
}
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 2e565f8e5165..71988b69eca6 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -386,12 +386,12 @@ config RTC_DRV_PCF8583
will be called rtc-pcf8583.
config RTC_DRV_M41T80
- tristate "ST M41T62/65/M41T80/81/82/83/84/85/87"
+ tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible"
help
If you say Y here you will get support for the ST M41T60
and M41T80 RTC chips series. Currently, the following chips are
supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
- M41ST85, and M41ST87.
+ M41ST85, M41ST87, and MicroCrystal RV4162.
This driver can also be built as a module. If so, the module
will be called rtc-m41t80.
@@ -573,6 +573,17 @@ config RTC_DRV_DS1305
This driver can also be built as a module. If so, the module
will be called rtc-ds1305.
+config RTC_DRV_DS1343
+ select REGMAP_SPI
+ tristate "Dallas/Maxim DS1343/DS1344"
+ help
+ If you say yes here you get support for the
+ Dallas/Maxim DS1343 and DS1344 real time clock chips.
+ Support for trickle charger, alarm is provided.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-ds1343.
+
config RTC_DRV_DS1347
tristate "Dallas/Maxim DS1347"
help
@@ -650,6 +661,14 @@ config RTC_DRV_RX4581
This driver can also be built as a module. If so the module
will be called rtc-rx4581.
+config RTC_DRV_MCP795
+ tristate "Microchip MCP795"
+ help
+ If you say yes here you will get support for the Microchip MCP795.
+
+ This driver can also be built as a module. If so the module
+ will be called rtc-mcp795.
+
endif # SPI_MASTER
comment "Platform RTC drivers"
@@ -758,6 +777,16 @@ config RTC_DRV_DA9055
This driver can also be built as a module. If so, the module
will be called rtc-da9055
+config RTC_DRV_DA9063
+ tristate "Dialog Semiconductor DA9063 RTC"
+ depends on MFD_DA9063
+ help
+ If you say yes here you will get support for the RTC subsystem
+ of the Dialog Semiconductor DA9063.
+
+ This driver can also be built as a module. If so, the module
+ will be called "rtc-da9063".
+
config RTC_DRV_EFI
tristate "EFI RTC"
depends on IA64
@@ -1327,6 +1356,15 @@ config RTC_DRV_MOXART
This driver can also be built as a module. If so, the module
will be called rtc-moxart
+config RTC_DRV_XGENE
+ tristate "APM X-Gene RTC"
+ help
+ If you say yes here you get support for the APM X-Gene SoC real time
+ clock.
+
+ This driver can also be built as a module, if so, the module
+ will be called "rtc-xgene".
+
comment "HID Sensor RTC drivers"
config RTC_DRV_HID_SENSOR_TIME
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 40a09915c8f6..70347d041d10 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_RTC_DRV_CMOS) += rtc-cmos.o
obj-$(CONFIG_RTC_DRV_COH901331) += rtc-coh901331.o
obj-$(CONFIG_RTC_DRV_DA9052) += rtc-da9052.o
obj-$(CONFIG_RTC_DRV_DA9055) += rtc-da9055.o
+obj-$(CONFIG_RTC_DRV_DA9063) += rtc-da9063.o
obj-$(CONFIG_RTC_DRV_DAVINCI) += rtc-davinci.o
obj-$(CONFIG_RTC_DRV_DM355EVM) += rtc-dm355evm.o
obj-$(CONFIG_RTC_DRV_VRTC) += rtc-mrst.o
@@ -40,6 +41,7 @@ obj-$(CONFIG_RTC_DRV_DS1286) += rtc-ds1286.o
obj-$(CONFIG_RTC_DRV_DS1302) += rtc-ds1302.o
obj-$(CONFIG_RTC_DRV_DS1305) += rtc-ds1305.o
obj-$(CONFIG_RTC_DRV_DS1307) += rtc-ds1307.o
+obj-$(CONFIG_RTC_DRV_DS1343) += rtc-ds1343.o
obj-$(CONFIG_RTC_DRV_DS1347) += rtc-ds1347.o
obj-$(CONFIG_RTC_DRV_DS1374) += rtc-ds1374.o
obj-$(CONFIG_RTC_DRV_DS1390) += rtc-ds1390.o
@@ -80,6 +82,7 @@ obj-$(CONFIG_RTC_DRV_MAX8997) += rtc-max8997.o
obj-$(CONFIG_RTC_DRV_MAX6902) += rtc-max6902.o
obj-$(CONFIG_RTC_DRV_MAX77686) += rtc-max77686.o
obj-$(CONFIG_RTC_DRV_MC13XXX) += rtc-mc13xxx.o
+obj-$(CONFIG_RTC_DRV_MCP795) += rtc-mcp795.o
obj-$(CONFIG_RTC_DRV_MSM6242) += rtc-msm6242.o
obj-$(CONFIG_RTC_DRV_MPC5121) += rtc-mpc5121.o
obj-$(CONFIG_RTC_DRV_MV) += rtc-mv.o
@@ -135,5 +138,6 @@ obj-$(CONFIG_RTC_DRV_VT8500) += rtc-vt8500.o
obj-$(CONFIG_RTC_DRV_WM831X) += rtc-wm831x.o
obj-$(CONFIG_RTC_DRV_WM8350) += rtc-wm8350.o
obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o
+obj-$(CONFIG_RTC_DRV_XGENE) += rtc-xgene.o
obj-$(CONFIG_RTC_DRV_SIRFSOC) += rtc-sirfsoc.o
obj-$(CONFIG_RTC_DRV_MOXART) += rtc-moxart.o
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index c2eff6082363..5813fa52c3d4 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -292,7 +292,8 @@ int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
dev_dbg(&rtc->dev, "alarm rollover: %s\n", "year");
do {
alarm->time.tm_year++;
- } while (rtc_valid_tm(&alarm->time) != 0);
+ } while (!is_leap_year(alarm->time.tm_year + 1900)
+ && rtc_valid_tm(&alarm->time) != 0);
break;
default:
@@ -300,7 +301,16 @@ int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
}
done:
- return 0;
+ err = rtc_valid_tm(&alarm->time);
+
+ if (err) {
+ dev_warn(&rtc->dev, "invalid alarm value: %d-%d-%d %d:%d:%d\n",
+ alarm->time.tm_year + 1900, alarm->time.tm_mon + 1,
+ alarm->time.tm_mday, alarm->time.tm_hour, alarm->time.tm_min,
+ alarm->time.tm_sec);
+ }
+
+ return err;
}
int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c
index 816504846cdd..0c6add1a38dc 100644
--- a/drivers/rtc/rtc-88pm860x.c
+++ b/drivers/rtc/rtc-88pm860x.c
@@ -293,7 +293,7 @@ static int pm860x_rtc_dt_init(struct platform_device *pdev,
int ret;
if (!np)
return -ENODEV;
- np = of_find_node_by_name(np, "rtc");
+ np = of_get_child_by_name(np, "rtc");
if (!np) {
dev_err(&pdev->dev, "failed to find rtc node\n");
return -ENODEV;
@@ -301,6 +301,7 @@ static int pm860x_rtc_dt_init(struct platform_device *pdev,
ret = of_property_read_u32(np, "marvell,88pm860x-vrtc", &info->vrtc);
if (ret)
info->vrtc = 0;
+ of_node_put(np);
return 0;
}
#else
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 3281c90691c3..44fe83ee9bee 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -48,6 +48,7 @@ struct at91_rtc_config {
static const struct at91_rtc_config *at91_rtc_config;
static DECLARE_COMPLETION(at91_rtc_updated);
+static DECLARE_COMPLETION(at91_rtc_upd_rdy);
static unsigned int at91_alarm_year = AT91_RTC_EPOCH;
static void __iomem *at91_rtc_regs;
static int irq;
@@ -161,6 +162,8 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
+ wait_for_completion(&at91_rtc_upd_rdy);
+
/* Stop Time/Calendar from counting */
cr = at91_rtc_read(AT91_RTC_CR);
at91_rtc_write(AT91_RTC_CR, cr | AT91_RTC_UPDCAL | AT91_RTC_UPDTIM);
@@ -183,7 +186,9 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)
/* Restart Time/Calendar */
cr = at91_rtc_read(AT91_RTC_CR);
+ at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_SECEV);
at91_rtc_write(AT91_RTC_CR, cr & ~(AT91_RTC_UPDCAL | AT91_RTC_UPDTIM));
+ at91_rtc_write_ier(AT91_RTC_SECEV);
return 0;
}
@@ -290,8 +295,10 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
if (rtsr) { /* this interrupt is shared! Is it ours? */
if (rtsr & AT91_RTC_ALARM)
events |= (RTC_AF | RTC_IRQF);
- if (rtsr & AT91_RTC_SECEV)
- events |= (RTC_UF | RTC_IRQF);
+ if (rtsr & AT91_RTC_SECEV) {
+ complete(&at91_rtc_upd_rdy);
+ at91_rtc_write_idr(AT91_RTC_SECEV);
+ }
if (rtsr & AT91_RTC_ACKUPD)
complete(&at91_rtc_updated);
@@ -413,6 +420,11 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
return PTR_ERR(rtc);
platform_set_drvdata(pdev, rtc);
+ /* enable SECEV interrupt in order to initialize at91_rtc_upd_rdy
+ * completion.
+ */
+ at91_rtc_write_ier(AT91_RTC_SECEV);
+
dev_info(&pdev->dev, "AT91 Real Time Clock driver.\n");
return 0;
}
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index 0c53f452849d..fe4bdb06a55a 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -346,7 +346,7 @@ static int bfin_rtc_probe(struct platform_device *pdev)
{
struct bfin_rtc *rtc;
struct device *dev = &pdev->dev;
- int ret = 0;
+ int ret;
unsigned long timeout = jiffies + HZ;
dev_dbg_stamp(dev);
@@ -361,16 +361,17 @@ static int bfin_rtc_probe(struct platform_device *pdev)
/* Register our RTC with the RTC framework */
rtc->rtc_dev = devm_rtc_device_register(dev, pdev->name, &bfin_rtc_ops,
THIS_MODULE);
- if (unlikely(IS_ERR(rtc->rtc_dev))) {
- ret = PTR_ERR(rtc->rtc_dev);
- goto err;
- }
+ if (unlikely(IS_ERR(rtc->rtc_dev)))
+ return PTR_ERR(rtc->rtc_dev);
/* Grab the IRQ and init the hardware */
ret = devm_request_irq(dev, IRQ_RTC, bfin_rtc_interrupt, 0,
pdev->name, dev);
if (unlikely(ret))
- goto err;
+ dev_err(&pdev->dev,
+ "unable to request IRQ; alarm won't work, "
+ "and writes will be delayed\n");
+
/* sometimes the bootloader touched things, but the write complete was not
* enabled, so let's just do a quick timeout here since the IRQ will not fire ...
*/
@@ -381,9 +382,6 @@ static int bfin_rtc_probe(struct platform_device *pdev)
bfin_write_RTC_SWCNT(0);
return 0;
-
-err:
- return ret;
}
static int bfin_rtc_remove(struct platform_device *pdev)
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 0963c9309c74..b0e4a3eb33c7 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -647,6 +647,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
int retval = 0;
unsigned char rtc_control;
unsigned address_space;
+ u32 flags = 0;
/* there can be only one ... */
if (cmos_rtc.dev)
@@ -660,9 +661,12 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
* REVISIT non-x86 systems may instead use memory space resources
* (needing ioremap etc), not i/o space resources like this ...
*/
- ports = request_region(ports->start,
- resource_size(ports),
- driver_name);
+ if (RTC_IOMAPPED)
+ ports = request_region(ports->start, resource_size(ports),
+ driver_name);
+ else
+ ports = request_mem_region(ports->start, resource_size(ports),
+ driver_name);
if (!ports) {
dev_dbg(dev, "i/o registers already in use\n");
return -EBUSY;
@@ -699,6 +703,11 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
* expect CMOS_READ and friends to handle.
*/
if (info) {
+ if (info->flags)
+ flags = info->flags;
+ if (info->address_space)
+ address_space = info->address_space;
+
if (info->rtc_day_alarm && info->rtc_day_alarm < 128)
cmos_rtc.day_alrm = info->rtc_day_alarm;
if (info->rtc_mon_alarm && info->rtc_mon_alarm < 128)
@@ -726,18 +735,21 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
spin_lock_irq(&rtc_lock);
- /* force periodic irq to CMOS reset default of 1024Hz;
- *
- * REVISIT it's been reported that at least one x86_64 ALI mobo
- * doesn't use 32KHz here ... for portability we might need to
- * do something about other clock frequencies.
- */
- cmos_rtc.rtc->irq_freq = 1024;
- hpet_set_periodic_freq(cmos_rtc.rtc->irq_freq);
- CMOS_WRITE(RTC_REF_CLCK_32KHZ | 0x06, RTC_FREQ_SELECT);
+ if (!(flags & CMOS_RTC_FLAGS_NOFREQ)) {
+ /* force periodic irq to CMOS reset default of 1024Hz;
+ *
+ * REVISIT it's been reported that at least one x86_64 ALI
+ * mobo doesn't use 32KHz here ... for portability we might
+ * need to do something about other clock frequencies.
+ */
+ cmos_rtc.rtc->irq_freq = 1024;
+ hpet_set_periodic_freq(cmos_rtc.rtc->irq_freq);
+ CMOS_WRITE(RTC_REF_CLCK_32KHZ | 0x06, RTC_FREQ_SELECT);
+ }
/* disable irqs */
- cmos_irq_disable(&cmos_rtc, RTC_PIE | RTC_AIE | RTC_UIE);
+ if (is_valid_irq(rtc_irq))
+ cmos_irq_disable(&cmos_rtc, RTC_PIE | RTC_AIE | RTC_UIE);
rtc_control = CMOS_READ(RTC_CONTROL);
@@ -802,14 +814,18 @@ cleanup1:
cmos_rtc.dev = NULL;
rtc_device_unregister(cmos_rtc.rtc);
cleanup0:
- release_region(ports->start, resource_size(ports));
+ if (RTC_IOMAPPED)
+ release_region(ports->start, resource_size(ports));
+ else
+ release_mem_region(ports->start, resource_size(ports));
return retval;
}
-static void cmos_do_shutdown(void)
+static void cmos_do_shutdown(int rtc_irq)
{
spin_lock_irq(&rtc_lock);
- cmos_irq_disable(&cmos_rtc, RTC_IRQMASK);
+ if (is_valid_irq(rtc_irq))
+ cmos_irq_disable(&cmos_rtc, RTC_IRQMASK);
spin_unlock_irq(&rtc_lock);
}
@@ -818,7 +834,7 @@ static void __exit cmos_do_remove(struct device *dev)
struct cmos_rtc *cmos = dev_get_drvdata(dev);
struct resource *ports;
- cmos_do_shutdown();
+ cmos_do_shutdown(cmos->irq);
sysfs_remove_bin_file(&dev->kobj, &nvram);
@@ -831,7 +847,10 @@ static void __exit cmos_do_remove(struct device *dev)
cmos->rtc = NULL;
ports = cmos->iomem;
- release_region(ports->start, resource_size(ports));
+ if (RTC_IOMAPPED)
+ release_region(ports->start, resource_size(ports));
+ else
+ release_mem_region(ports->start, resource_size(ports));
cmos->iomem = NULL;
cmos->dev = NULL;
@@ -1065,10 +1084,13 @@ static void __exit cmos_pnp_remove(struct pnp_dev *pnp)
static void cmos_pnp_shutdown(struct pnp_dev *pnp)
{
- if (system_state == SYSTEM_POWER_OFF && !cmos_poweroff(&pnp->dev))
+ struct device *dev = &pnp->dev;
+ struct cmos_rtc *cmos = dev_get_drvdata(dev);
+
+ if (system_state == SYSTEM_POWER_OFF && !cmos_poweroff(dev))
return;
- cmos_do_shutdown();
+ cmos_do_shutdown(cmos->irq);
}
static const struct pnp_device_id rtc_ids[] = {
@@ -1143,11 +1165,21 @@ static inline void cmos_of_init(struct platform_device *pdev) {}
static int __init cmos_platform_probe(struct platform_device *pdev)
{
+ struct resource *resource;
+ int irq;
+
cmos_of_init(pdev);
cmos_wake_setup(&pdev->dev);
- return cmos_do_probe(&pdev->dev,
- platform_get_resource(pdev, IORESOURCE_IO, 0),
- platform_get_irq(pdev, 0));
+
+ if (RTC_IOMAPPED)
+ resource = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ else
+ resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ irq = -1;
+
+ return cmos_do_probe(&pdev->dev, resource, irq);
}
static int __exit cmos_platform_remove(struct platform_device *pdev)
@@ -1158,10 +1190,13 @@ static int __exit cmos_platform_remove(struct platform_device *pdev)
static void cmos_platform_shutdown(struct platform_device *pdev)
{
- if (system_state == SYSTEM_POWER_OFF && !cmos_poweroff(&pdev->dev))
+ struct device *dev = &pdev->dev;
+ struct cmos_rtc *cmos = dev_get_drvdata(dev);
+
+ if (system_state == SYSTEM_POWER_OFF && !cmos_poweroff(dev))
return;
- cmos_do_shutdown();
+ cmos_do_shutdown(cmos->irq);
}
/* work with hotplug and coldplug */
diff --git a/drivers/rtc/rtc-da9052.c b/drivers/rtc/rtc-da9052.c
index a1cbf64242a5..e5c9486cf452 100644
--- a/drivers/rtc/rtc-da9052.c
+++ b/drivers/rtc/rtc-da9052.c
@@ -20,28 +20,28 @@
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/reg.h>
-#define rtc_err(da9052, fmt, ...) \
- dev_err(da9052->dev, "%s: " fmt, __func__, ##__VA_ARGS__)
+#define rtc_err(rtc, fmt, ...) \
+ dev_err(rtc->da9052->dev, "%s: " fmt, __func__, ##__VA_ARGS__)
struct da9052_rtc {
struct rtc_device *rtc;
struct da9052 *da9052;
};
-static int da9052_rtc_enable_alarm(struct da9052 *da9052, bool enable)
+static int da9052_rtc_enable_alarm(struct da9052_rtc *rtc, bool enable)
{
int ret;
if (enable) {
- ret = da9052_reg_update(da9052, DA9052_ALARM_Y_REG,
- DA9052_ALARM_Y_ALARM_ON,
- DA9052_ALARM_Y_ALARM_ON);
+ ret = da9052_reg_update(rtc->da9052, DA9052_ALARM_Y_REG,
+ DA9052_ALARM_Y_ALARM_ON|DA9052_ALARM_Y_TICK_ON,
+ DA9052_ALARM_Y_ALARM_ON);
if (ret != 0)
- rtc_err(da9052, "Failed to enable ALM: %d\n", ret);
+ rtc_err(rtc, "Failed to enable ALM: %d\n", ret);
} else {
- ret = da9052_reg_update(da9052, DA9052_ALARM_Y_REG,
- DA9052_ALARM_Y_ALARM_ON, 0);
+ ret = da9052_reg_update(rtc->da9052, DA9052_ALARM_Y_REG,
+ DA9052_ALARM_Y_ALARM_ON|DA9052_ALARM_Y_TICK_ON, 0);
if (ret != 0)
- rtc_err(da9052, "Write error: %d\n", ret);
+ rtc_err(rtc, "Write error: %d\n", ret);
}
return ret;
}
@@ -49,31 +49,20 @@ static int da9052_rtc_enable_alarm(struct da9052 *da9052, bool enable)
static irqreturn_t da9052_rtc_irq(int irq, void *data)
{
struct da9052_rtc *rtc = data;
- int ret;
- ret = da9052_reg_read(rtc->da9052, DA9052_ALARM_MI_REG);
- if (ret < 0) {
- rtc_err(rtc->da9052, "Read error: %d\n", ret);
- return IRQ_NONE;
- }
-
- if (ret & DA9052_ALARMMI_ALARMTYPE) {
- da9052_rtc_enable_alarm(rtc->da9052, 0);
- rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_AF);
- } else
- rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_PF);
+ rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_AF);
return IRQ_HANDLED;
}
-static int da9052_read_alarm(struct da9052 *da9052, struct rtc_time *rtc_tm)
+static int da9052_read_alarm(struct da9052_rtc *rtc, struct rtc_time *rtc_tm)
{
int ret;
uint8_t v[5];
- ret = da9052_group_read(da9052, DA9052_ALARM_MI_REG, 5, v);
+ ret = da9052_group_read(rtc->da9052, DA9052_ALARM_MI_REG, 5, v);
if (ret != 0) {
- rtc_err(da9052, "Failed to group read ALM: %d\n", ret);
+ rtc_err(rtc, "Failed to group read ALM: %d\n", ret);
return ret;
}
@@ -84,23 +73,33 @@ static int da9052_read_alarm(struct da9052 *da9052, struct rtc_time *rtc_tm)
rtc_tm->tm_min = v[0] & DA9052_RTC_MIN;
ret = rtc_valid_tm(rtc_tm);
- if (ret != 0)
- return ret;
return ret;
}
-static int da9052_set_alarm(struct da9052 *da9052, struct rtc_time *rtc_tm)
+static int da9052_set_alarm(struct da9052_rtc *rtc, struct rtc_time *rtc_tm)
{
+ struct da9052 *da9052 = rtc->da9052;
+ unsigned long alm_time;
int ret;
uint8_t v[3];
+ ret = rtc_tm_to_time(rtc_tm, &alm_time);
+ if (ret != 0)
+ return ret;
+
+ if (rtc_tm->tm_sec > 0) {
+ alm_time += 60 - rtc_tm->tm_sec;
+ rtc_time_to_tm(alm_time, rtc_tm);
+ }
+ BUG_ON(rtc_tm->tm_sec); /* it will cause repeated irqs if not zero */
+
rtc_tm->tm_year -= 100;
rtc_tm->tm_mon += 1;
ret = da9052_reg_update(da9052, DA9052_ALARM_MI_REG,
DA9052_RTC_MIN, rtc_tm->tm_min);
if (ret != 0) {
- rtc_err(da9052, "Failed to write ALRM MIN: %d\n", ret);
+ rtc_err(rtc, "Failed to write ALRM MIN: %d\n", ret);
return ret;
}
@@ -115,22 +114,22 @@ static int da9052_set_alarm(struct da9052 *da9052, struct rtc_time *rtc_tm)
ret = da9052_reg_update(da9052, DA9052_ALARM_Y_REG,
DA9052_RTC_YEAR, rtc_tm->tm_year);
if (ret != 0)
- rtc_err(da9052, "Failed to write ALRM YEAR: %d\n", ret);
+ rtc_err(rtc, "Failed to write ALRM YEAR: %d\n", ret);
return ret;
}
-static int da9052_rtc_get_alarm_status(struct da9052 *da9052)
+static int da9052_rtc_get_alarm_status(struct da9052_rtc *rtc)
{
int ret;
- ret = da9052_reg_read(da9052, DA9052_ALARM_Y_REG);
+ ret = da9052_reg_read(rtc->da9052, DA9052_ALARM_Y_REG);
if (ret < 0) {
- rtc_err(da9052, "Failed to read ALM: %d\n", ret);
+ rtc_err(rtc, "Failed to read ALM: %d\n", ret);
return ret;
}
- ret &= DA9052_ALARM_Y_ALARM_ON;
- return (ret > 0) ? 1 : 0;
+
+ return !!(ret&DA9052_ALARM_Y_ALARM_ON);
}
static int da9052_rtc_read_time(struct device *dev, struct rtc_time *rtc_tm)
@@ -141,7 +140,7 @@ static int da9052_rtc_read_time(struct device *dev, struct rtc_time *rtc_tm)
ret = da9052_group_read(rtc->da9052, DA9052_COUNT_S_REG, 6, v);
if (ret < 0) {
- rtc_err(rtc->da9052, "Failed to read RTC time : %d\n", ret);
+ rtc_err(rtc, "Failed to read RTC time : %d\n", ret);
return ret;
}
@@ -153,18 +152,14 @@ static int da9052_rtc_read_time(struct device *dev, struct rtc_time *rtc_tm)
rtc_tm->tm_sec = v[0] & DA9052_RTC_SEC;
ret = rtc_valid_tm(rtc_tm);
- if (ret != 0) {
- rtc_err(rtc->da9052, "rtc_valid_tm failed: %d\n", ret);
- return ret;
- }
-
- return 0;
+ return ret;
}
static int da9052_rtc_set_time(struct device *dev, struct rtc_time *tm)
{
struct da9052_rtc *rtc;
uint8_t v[6];
+ int ret;
rtc = dev_get_drvdata(dev);
@@ -175,7 +170,10 @@ static int da9052_rtc_set_time(struct device *dev, struct rtc_time *tm)
v[4] = tm->tm_mon + 1;
v[5] = tm->tm_year - 100;
- return da9052_group_write(rtc->da9052, DA9052_COUNT_S_REG, 6, v);
+ ret = da9052_group_write(rtc->da9052, DA9052_COUNT_S_REG, 6, v);
+ if (ret < 0)
+ rtc_err(rtc, "failed to set RTC time: %d\n", ret);
+ return ret;
}
static int da9052_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
@@ -184,13 +182,13 @@ static int da9052_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
struct rtc_time *tm = &alrm->time;
struct da9052_rtc *rtc = dev_get_drvdata(dev);
- ret = da9052_read_alarm(rtc->da9052, tm);
-
- if (ret)
+ ret = da9052_read_alarm(rtc, tm);
+ if (ret < 0) {
+ rtc_err(rtc, "failed to read RTC alarm: %d\n", ret);
return ret;
+ }
- alrm->enabled = da9052_rtc_get_alarm_status(rtc->da9052);
-
+ alrm->enabled = da9052_rtc_get_alarm_status(rtc);
return 0;
}
@@ -200,16 +198,15 @@ static int da9052_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
struct rtc_time *tm = &alrm->time;
struct da9052_rtc *rtc = dev_get_drvdata(dev);
- ret = da9052_rtc_enable_alarm(rtc->da9052, 0);
+ ret = da9052_rtc_enable_alarm(rtc, 0);
if (ret < 0)
return ret;
- ret = da9052_set_alarm(rtc->da9052, tm);
- if (ret)
+ ret = da9052_set_alarm(rtc, tm);
+ if (ret < 0)
return ret;
- ret = da9052_rtc_enable_alarm(rtc->da9052, 1);
-
+ ret = da9052_rtc_enable_alarm(rtc, 1);
return ret;
}
@@ -217,7 +214,7 @@ static int da9052_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
{
struct da9052_rtc *rtc = dev_get_drvdata(dev);
- return da9052_rtc_enable_alarm(rtc->da9052, enabled);
+ return da9052_rtc_enable_alarm(rtc, enabled);
}
static const struct rtc_class_ops da9052_rtc_ops = {
@@ -239,10 +236,23 @@ static int da9052_rtc_probe(struct platform_device *pdev)
rtc->da9052 = dev_get_drvdata(pdev->dev.parent);
platform_set_drvdata(pdev, rtc);
+
+ ret = da9052_reg_write(rtc->da9052, DA9052_BBAT_CONT_REG, 0xFE);
+ if (ret < 0) {
+ rtc_err(rtc,
+ "Failed to setup RTC battery charging: %d\n", ret);
+ return ret;
+ }
+
+ ret = da9052_reg_update(rtc->da9052, DA9052_ALARM_Y_REG,
+ DA9052_ALARM_Y_TICK_ON, 0);
+ if (ret != 0)
+ rtc_err(rtc, "Failed to disable TICKS: %d\n", ret);
+
ret = da9052_request_irq(rtc->da9052, DA9052_IRQ_ALARM, "ALM",
da9052_rtc_irq, rtc);
if (ret != 0) {
- rtc_err(rtc->da9052, "irq registration failed: %d\n", ret);
+ rtc_err(rtc, "irq registration failed: %d\n", ret);
return ret;
}
@@ -261,7 +271,7 @@ static struct platform_driver da9052_rtc_driver = {
module_platform_driver(da9052_rtc_driver);
-MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_AUTHOR("Anthony Olech <Anthony.Olech@diasemi.com>");
MODULE_DESCRIPTION("RTC driver for Dialog DA9052 PMIC");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:da9052-rtc");
diff --git a/drivers/rtc/rtc-da9063.c b/drivers/rtc/rtc-da9063.c
new file mode 100644
index 000000000000..595393098b09
--- /dev/null
+++ b/drivers/rtc/rtc-da9063.c
@@ -0,0 +1,333 @@
+/* rtc-da9063.c - Real time clock device driver for DA9063
+ * Copyright (C) 2013-14 Dialog Semiconductor Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/rtc.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/regmap.h>
+#include <linux/mfd/da9063/registers.h>
+#include <linux/mfd/da9063/core.h>
+
+#define YEARS_TO_DA9063(year) ((year) - 100)
+#define MONTHS_TO_DA9063(month) ((month) + 1)
+#define YEARS_FROM_DA9063(year) ((year) + 100)
+#define MONTHS_FROM_DA9063(month) ((month) - 1)
+
+#define RTC_DATA_LEN (DA9063_REG_COUNT_Y - DA9063_REG_COUNT_S + 1)
+#define RTC_SEC 0
+#define RTC_MIN 1
+#define RTC_HOUR 2
+#define RTC_DAY 3
+#define RTC_MONTH 4
+#define RTC_YEAR 5
+
+struct da9063_rtc {
+ struct rtc_device *rtc_dev;
+ struct da9063 *hw;
+ struct rtc_time alarm_time;
+ bool rtc_sync;
+};
+
+static void da9063_data_to_tm(u8 *data, struct rtc_time *tm)
+{
+ tm->tm_sec = data[RTC_SEC] & DA9063_COUNT_SEC_MASK;
+ tm->tm_min = data[RTC_MIN] & DA9063_COUNT_MIN_MASK;
+ tm->tm_hour = data[RTC_HOUR] & DA9063_COUNT_HOUR_MASK;
+ tm->tm_mday = data[RTC_DAY] & DA9063_COUNT_DAY_MASK;
+ tm->tm_mon = MONTHS_FROM_DA9063(data[RTC_MONTH] &
+ DA9063_COUNT_MONTH_MASK);
+ tm->tm_year = YEARS_FROM_DA9063(data[RTC_YEAR] &
+ DA9063_COUNT_YEAR_MASK);
+}
+
+static void da9063_tm_to_data(struct rtc_time *tm, u8 *data)
+{
+ data[RTC_SEC] &= ~DA9063_COUNT_SEC_MASK;
+ data[RTC_SEC] |= tm->tm_sec & DA9063_COUNT_SEC_MASK;
+
+ data[RTC_MIN] &= ~DA9063_COUNT_MIN_MASK;
+ data[RTC_MIN] |= tm->tm_min & DA9063_COUNT_MIN_MASK;
+
+ data[RTC_HOUR] &= ~DA9063_COUNT_HOUR_MASK;
+ data[RTC_HOUR] |= tm->tm_hour & DA9063_COUNT_HOUR_MASK;
+
+ data[RTC_DAY] &= ~DA9063_COUNT_DAY_MASK;
+ data[RTC_DAY] |= tm->tm_mday & DA9063_COUNT_DAY_MASK;
+
+ data[RTC_MONTH] &= ~DA9063_COUNT_MONTH_MASK;
+ data[RTC_MONTH] |= MONTHS_TO_DA9063(tm->tm_mon) &
+ DA9063_COUNT_MONTH_MASK;
+
+ data[RTC_YEAR] &= ~DA9063_COUNT_YEAR_MASK;
+ data[RTC_YEAR] |= YEARS_TO_DA9063(tm->tm_year) &
+ DA9063_COUNT_YEAR_MASK;
+}
+
+static int da9063_rtc_stop_alarm(struct device *dev)
+{
+ struct da9063_rtc *rtc = dev_get_drvdata(dev);
+
+ return regmap_update_bits(rtc->hw->regmap, DA9063_REG_ALARM_Y,
+ DA9063_ALARM_ON, 0);
+}
+
+static int da9063_rtc_start_alarm(struct device *dev)
+{
+ struct da9063_rtc *rtc = dev_get_drvdata(dev);
+
+ return regmap_update_bits(rtc->hw->regmap, DA9063_REG_ALARM_Y,
+ DA9063_ALARM_ON, DA9063_ALARM_ON);
+}
+
+static int da9063_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ struct da9063_rtc *rtc = dev_get_drvdata(dev);
+ unsigned long tm_secs;
+ unsigned long al_secs;
+ u8 data[RTC_DATA_LEN];
+ int ret;
+
+ ret = regmap_bulk_read(rtc->hw->regmap, DA9063_REG_COUNT_S,
+ data, RTC_DATA_LEN);
+ if (ret < 0) {
+ dev_err(dev, "Failed to read RTC time data: %d\n", ret);
+ return ret;
+ }
+
+ if (!(data[RTC_SEC] & DA9063_RTC_READ)) {
+ dev_dbg(dev, "RTC not yet ready to be read by the host\n");
+ return -EINVAL;
+ }
+
+ da9063_data_to_tm(data, tm);
+
+ rtc_tm_to_time(tm, &tm_secs);
+ rtc_tm_to_time(&rtc->alarm_time, &al_secs);
+
+ /* handle the rtc synchronisation delay */
+ if (rtc->rtc_sync == true && al_secs - tm_secs == 1)
+ memcpy(tm, &rtc->alarm_time, sizeof(struct rtc_time));
+ else
+ rtc->rtc_sync = false;
+
+ return rtc_valid_tm(tm);
+}
+
+static int da9063_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ struct da9063_rtc *rtc = dev_get_drvdata(dev);
+ u8 data[RTC_DATA_LEN];
+ int ret;
+
+ da9063_tm_to_data(tm, data);
+ ret = regmap_bulk_write(rtc->hw->regmap, DA9063_REG_COUNT_S,
+ data, RTC_DATA_LEN);
+ if (ret < 0)
+ dev_err(dev, "Failed to set RTC time data: %d\n", ret);
+
+ return ret;
+}
+
+static int da9063_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct da9063_rtc *rtc = dev_get_drvdata(dev);
+ u8 data[RTC_DATA_LEN];
+ int ret;
+ unsigned int val;
+
+ ret = regmap_bulk_read(rtc->hw->regmap, DA9063_REG_ALARM_S,
+ &data[RTC_SEC], RTC_DATA_LEN);
+ if (ret < 0)
+ return ret;
+
+ da9063_data_to_tm(data, &alrm->time);
+
+ alrm->enabled = !!(data[RTC_YEAR] & DA9063_ALARM_ON);
+
+ ret = regmap_read(rtc->hw->regmap, DA9063_REG_EVENT_A, &val);
+ if (ret < 0)
+ return ret;
+
+ if (val & (DA9063_E_ALARM))
+ alrm->pending = 1;
+ else
+ alrm->pending = 0;
+
+ return 0;
+}
+
+static int da9063_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct da9063_rtc *rtc = dev_get_drvdata(dev);
+ u8 data[RTC_DATA_LEN];
+ int ret;
+
+ da9063_tm_to_data(&alrm->time, data);
+
+ ret = da9063_rtc_stop_alarm(dev);
+ if (ret < 0) {
+ dev_err(dev, "Failed to stop alarm: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_bulk_write(rtc->hw->regmap, DA9063_REG_ALARM_S,
+ data, RTC_DATA_LEN);
+ if (ret < 0) {
+ dev_err(dev, "Failed to write alarm: %d\n", ret);
+ return ret;
+ }
+
+ rtc->alarm_time = alrm->time;
+
+ if (alrm->enabled) {
+ ret = da9063_rtc_start_alarm(dev);
+ if (ret < 0) {
+ dev_err(dev, "Failed to start alarm: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+static int da9063_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+ if (enabled)
+ return da9063_rtc_start_alarm(dev);
+ else
+ return da9063_rtc_stop_alarm(dev);
+}
+
+static irqreturn_t da9063_alarm_event(int irq, void *data)
+{
+ struct da9063_rtc *rtc = data;
+
+ regmap_update_bits(rtc->hw->regmap, DA9063_REG_ALARM_Y,
+ DA9063_ALARM_ON, 0);
+
+ rtc->rtc_sync = true;
+ rtc_update_irq(rtc->rtc_dev, 1, RTC_IRQF | RTC_AF);
+
+ return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops da9063_rtc_ops = {
+ .read_time = da9063_rtc_read_time,
+ .set_time = da9063_rtc_set_time,
+ .read_alarm = da9063_rtc_read_alarm,
+ .set_alarm = da9063_rtc_set_alarm,
+ .alarm_irq_enable = da9063_rtc_alarm_irq_enable,
+};
+
+static int da9063_rtc_probe(struct platform_device *pdev)
+{
+ struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent);
+ struct da9063_rtc *rtc;
+ int irq_alarm;
+ u8 data[RTC_DATA_LEN];
+ int ret;
+
+ ret = regmap_update_bits(da9063->regmap, DA9063_REG_CONTROL_E,
+ DA9063_RTC_EN, DA9063_RTC_EN);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to enable RTC\n");
+ goto err;
+ }
+
+ ret = regmap_update_bits(da9063->regmap, DA9063_REG_EN_32K,
+ DA9063_CRYSTAL, DA9063_CRYSTAL);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to run 32kHz oscillator\n");
+ goto err;
+ }
+
+ ret = regmap_update_bits(da9063->regmap, DA9063_REG_ALARM_S,
+ DA9063_ALARM_STATUS_TICK | DA9063_ALARM_STATUS_ALARM,
+ 0);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to access RTC alarm register\n");
+ goto err;
+ }
+
+ ret = regmap_update_bits(da9063->regmap, DA9063_REG_ALARM_S,
+ DA9063_ALARM_STATUS_ALARM,
+ DA9063_ALARM_STATUS_ALARM);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to access RTC alarm register\n");
+ goto err;
+ }
+
+ ret = regmap_update_bits(da9063->regmap, DA9063_REG_ALARM_Y,
+ DA9063_TICK_ON, 0);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to disable TICKs\n");
+ goto err;
+ }
+
+ ret = regmap_bulk_read(da9063->regmap, DA9063_REG_ALARM_S,
+ data, RTC_DATA_LEN);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to read initial alarm data: %d\n",
+ ret);
+ goto err;
+ }
+
+ rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
+ if (!rtc)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, rtc);
+
+ irq_alarm = platform_get_irq_byname(pdev, "ALARM");
+ ret = devm_request_threaded_irq(&pdev->dev, irq_alarm, NULL,
+ da9063_alarm_event,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "ALARM", rtc);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to request ALARM IRQ %d: %d\n",
+ irq_alarm, ret);
+ goto err;
+ }
+
+ rtc->hw = da9063;
+ rtc->rtc_dev = devm_rtc_device_register(&pdev->dev, DA9063_DRVNAME_RTC,
+ &da9063_rtc_ops, THIS_MODULE);
+ if (IS_ERR(rtc->rtc_dev))
+ return PTR_ERR(rtc->rtc_dev);
+
+ da9063_data_to_tm(data, &rtc->alarm_time);
+ rtc->rtc_sync = false;
+err:
+ return ret;
+}
+
+static struct platform_driver da9063_rtc_driver = {
+ .probe = da9063_rtc_probe,
+ .driver = {
+ .name = DA9063_DRVNAME_RTC,
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver(da9063_rtc_driver);
+
+MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");
+MODULE_DESCRIPTION("Real time clock device driver for Dialog DA9063");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DA9063_DRVNAME_RTC);
diff --git a/drivers/rtc/rtc-ds1343.c b/drivers/rtc/rtc-ds1343.c
new file mode 100644
index 000000000000..c3719189dd96
--- /dev/null
+++ b/drivers/rtc/rtc-ds1343.c
@@ -0,0 +1,689 @@
+/* rtc-ds1343.c
+ *
+ * Driver for Dallas Semiconductor DS1343 Low Current, SPI Compatible
+ * Real Time Clock
+ *
+ * Author : Raghavendra Chandra Ganiga <ravi23ganiga@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/spi/spi.h>
+#include <linux/regmap.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+
+#define DS1343_DRV_VERSION "01.00"
+#define DALLAS_MAXIM_DS1343 0
+#define DALLAS_MAXIM_DS1344 1
+
+/* RTC DS1343 Registers */
+#define DS1343_SECONDS_REG 0x00
+#define DS1343_MINUTES_REG 0x01
+#define DS1343_HOURS_REG 0x02
+#define DS1343_DAY_REG 0x03
+#define DS1343_DATE_REG 0x04
+#define DS1343_MONTH_REG 0x05
+#define DS1343_YEAR_REG 0x06
+#define DS1343_ALM0_SEC_REG 0x07
+#define DS1343_ALM0_MIN_REG 0x08
+#define DS1343_ALM0_HOUR_REG 0x09
+#define DS1343_ALM0_DAY_REG 0x0A
+#define DS1343_ALM1_SEC_REG 0x0B
+#define DS1343_ALM1_MIN_REG 0x0C
+#define DS1343_ALM1_HOUR_REG 0x0D
+#define DS1343_ALM1_DAY_REG 0x0E
+#define DS1343_CONTROL_REG 0x0F
+#define DS1343_STATUS_REG 0x10
+#define DS1343_TRICKLE_REG 0x11
+
+/* DS1343 Control Registers bits */
+#define DS1343_EOSC 0x80
+#define DS1343_DOSF 0x20
+#define DS1343_EGFIL 0x10
+#define DS1343_SQW 0x08
+#define DS1343_INTCN 0x04
+#define DS1343_A1IE 0x02
+#define DS1343_A0IE 0x01
+
+/* DS1343 Status Registers bits */
+#define DS1343_OSF 0x80
+#define DS1343_IRQF1 0x02
+#define DS1343_IRQF0 0x01
+
+/* DS1343 Trickle Charger Registers bits */
+#define DS1343_TRICKLE_MAGIC 0xa0
+#define DS1343_TRICKLE_DS1 0x08
+#define DS1343_TRICKLE_1K 0x01
+#define DS1343_TRICKLE_2K 0x02
+#define DS1343_TRICKLE_4K 0x03
+
+static const struct spi_device_id ds1343_id[] = {
+ { "ds1343", DALLAS_MAXIM_DS1343 },
+ { "ds1344", DALLAS_MAXIM_DS1344 },
+ { }
+};
+MODULE_DEVICE_TABLE(spi, ds1343_id);
+
+struct ds1343_priv {
+ struct spi_device *spi;
+ struct rtc_device *rtc;
+ struct regmap *map;
+ struct mutex mutex;
+ unsigned int irqen;
+ int irq;
+ int alarm_sec;
+ int alarm_min;
+ int alarm_hour;
+ int alarm_mday;
+};
+
+static int ds1343_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+ switch (cmd) {
+#ifdef RTC_SET_CHARGE
+ case RTC_SET_CHARGE:
+ {
+ int val;
+
+ if (copy_from_user(&val, (int __user *)arg, sizeof(int)))
+ return -EFAULT;
+
+ return regmap_write(priv->map, DS1343_TRICKLE_REG, val);
+ }
+ break;
+#endif
+ }
+
+ return -ENOIOCTLCMD;
+}
+
+static ssize_t ds1343_show_glitchfilter(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int glitch_filt_status, data;
+
+ regmap_read(priv->map, DS1343_CONTROL_REG, &data);
+
+ glitch_filt_status = !!(data & DS1343_EGFIL);
+
+ if (glitch_filt_status)
+ return sprintf(buf, "enabled\n");
+ else
+ return sprintf(buf, "disabled\n");
+}
+
+static ssize_t ds1343_store_glitchfilter(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int data;
+
+ regmap_read(priv->map, DS1343_CONTROL_REG, &data);
+
+ if (strncmp(buf, "enabled", 7) == 0)
+ data |= DS1343_EGFIL;
+
+ else if (strncmp(buf, "disabled", 8) == 0)
+ data &= ~(DS1343_EGFIL);
+
+ else
+ return -EINVAL;
+
+ regmap_write(priv->map, DS1343_CONTROL_REG, data);
+
+ return count;
+}
+
+static DEVICE_ATTR(glitch_filter, S_IRUGO | S_IWUSR, ds1343_show_glitchfilter,
+ ds1343_store_glitchfilter);
+
+static ssize_t ds1343_show_alarmstatus(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int alarmstatus, data;
+
+ regmap_read(priv->map, DS1343_CONTROL_REG, &data);
+
+ alarmstatus = !!(data & DS1343_A0IE);
+
+ if (alarmstatus)
+ return sprintf(buf, "enabled\n");
+ else
+ return sprintf(buf, "disabled\n");
+}
+
+static DEVICE_ATTR(alarm_status, S_IRUGO, ds1343_show_alarmstatus, NULL);
+
+static ssize_t ds1343_show_alarmmode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int alarm_mode, data;
+ char *alarm_str;
+
+ regmap_read(priv->map, DS1343_ALM0_SEC_REG, &data);
+ alarm_mode = (data & 0x80) >> 4;
+
+ regmap_read(priv->map, DS1343_ALM0_MIN_REG, &data);
+ alarm_mode |= (data & 0x80) >> 5;
+
+ regmap_read(priv->map, DS1343_ALM0_HOUR_REG, &data);
+ alarm_mode |= (data & 0x80) >> 6;
+
+ regmap_read(priv->map, DS1343_ALM0_DAY_REG, &data);
+ alarm_mode |= (data & 0x80) >> 7;
+
+ switch (alarm_mode) {
+ case 15:
+ alarm_str = "each second";
+ break;
+
+ case 7:
+ alarm_str = "seconds match";
+ break;
+
+ case 3:
+ alarm_str = "minutes and seconds match";
+ break;
+
+ case 1:
+ alarm_str = "hours, minutes and seconds match";
+ break;
+
+ case 0:
+ alarm_str = "day, hours, minutes and seconds match";
+ break;
+
+ default:
+ alarm_str = "invalid";
+ break;
+ }
+
+ return sprintf(buf, "%s\n", alarm_str);
+}
+
+static DEVICE_ATTR(alarm_mode, S_IRUGO, ds1343_show_alarmmode, NULL);
+
+static ssize_t ds1343_show_tricklecharger(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int data;
+ char *diodes = "disabled", *resistors = " ";
+
+ regmap_read(priv->map, DS1343_TRICKLE_REG, &data);
+
+ if ((data & 0xf0) == DS1343_TRICKLE_MAGIC) {
+ switch (data & 0x0c) {
+ case DS1343_TRICKLE_DS1:
+ diodes = "one diode,";
+ break;
+
+ default:
+ diodes = "no diode,";
+ break;
+ }
+
+ switch (data & 0x03) {
+ case DS1343_TRICKLE_1K:
+ resistors = "1k Ohm";
+ break;
+
+ case DS1343_TRICKLE_2K:
+ resistors = "2k Ohm";
+ break;
+
+ case DS1343_TRICKLE_4K:
+ resistors = "4k Ohm";
+ break;
+
+ default:
+ diodes = "disabled";
+ break;
+ }
+ }
+
+ return sprintf(buf, "%s %s\n", diodes, resistors);
+}
+
+static DEVICE_ATTR(trickle_charger, S_IRUGO, ds1343_show_tricklecharger, NULL);
+
+static int ds1343_sysfs_register(struct device *dev)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int err;
+
+ err = device_create_file(dev, &dev_attr_glitch_filter);
+ if (err)
+ return err;
+
+ err = device_create_file(dev, &dev_attr_trickle_charger);
+ if (err)
+ goto error1;
+
+ if (priv->irq <= 0)
+ return err;
+
+ err = device_create_file(dev, &dev_attr_alarm_mode);
+ if (err)
+ goto error2;
+
+ err = device_create_file(dev, &dev_attr_alarm_status);
+ if (!err)
+ return err;
+
+ device_remove_file(dev, &dev_attr_alarm_mode);
+
+error2:
+ device_remove_file(dev, &dev_attr_trickle_charger);
+
+error1:
+ device_remove_file(dev, &dev_attr_glitch_filter);
+
+ return err;
+}
+
+static void ds1343_sysfs_unregister(struct device *dev)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+
+ device_remove_file(dev, &dev_attr_glitch_filter);
+ device_remove_file(dev, &dev_attr_trickle_charger);
+
+ if (priv->irq <= 0)
+ return;
+
+ device_remove_file(dev, &dev_attr_alarm_status);
+ device_remove_file(dev, &dev_attr_alarm_mode);
+}
+
+static int ds1343_read_time(struct device *dev, struct rtc_time *dt)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ unsigned char buf[7];
+ int res;
+
+ res = regmap_bulk_read(priv->map, DS1343_SECONDS_REG, buf, 7);
+ if (res)
+ return res;
+
+ dt->tm_sec = bcd2bin(buf[0]);
+ dt->tm_min = bcd2bin(buf[1]);
+ dt->tm_hour = bcd2bin(buf[2] & 0x3F);
+ dt->tm_wday = bcd2bin(buf[3]) - 1;
+ dt->tm_mday = bcd2bin(buf[4]);
+ dt->tm_mon = bcd2bin(buf[5] & 0x1F) - 1;
+ dt->tm_year = bcd2bin(buf[6]) + 100; /* year offset from 1900 */
+
+ return rtc_valid_tm(dt);
+}
+
+static int ds1343_set_time(struct device *dev, struct rtc_time *dt)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int res;
+
+ res = regmap_write(priv->map, DS1343_SECONDS_REG,
+ bin2bcd(dt->tm_sec));
+ if (res)
+ return res;
+
+ res = regmap_write(priv->map, DS1343_MINUTES_REG,
+ bin2bcd(dt->tm_min));
+ if (res)
+ return res;
+
+ res = regmap_write(priv->map, DS1343_HOURS_REG,
+ bin2bcd(dt->tm_hour) & 0x3F);
+ if (res)
+ return res;
+
+ res = regmap_write(priv->map, DS1343_DAY_REG,
+ bin2bcd(dt->tm_wday + 1));
+ if (res)
+ return res;
+
+ res = regmap_write(priv->map, DS1343_DATE_REG,
+ bin2bcd(dt->tm_mday));
+ if (res)
+ return res;
+
+ res = regmap_write(priv->map, DS1343_MONTH_REG,
+ bin2bcd(dt->tm_mon + 1));
+ if (res)
+ return res;
+
+ dt->tm_year %= 100;
+
+ res = regmap_write(priv->map, DS1343_YEAR_REG,
+ bin2bcd(dt->tm_year));
+ if (res)
+ return res;
+
+ return 0;
+}
+
+static int ds1343_update_alarm(struct device *dev)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ unsigned int control, stat;
+ unsigned char buf[4];
+ int res = 0;
+
+ res = regmap_read(priv->map, DS1343_CONTROL_REG, &control);
+ if (res)
+ return res;
+
+ res = regmap_read(priv->map, DS1343_STATUS_REG, &stat);
+ if (res)
+ return res;
+
+ control &= ~(DS1343_A0IE);
+ stat &= ~(DS1343_IRQF0);
+
+ res = regmap_write(priv->map, DS1343_CONTROL_REG, control);
+ if (res)
+ return res;
+
+ res = regmap_write(priv->map, DS1343_STATUS_REG, stat);
+ if (res)
+ return res;
+
+ buf[0] = priv->alarm_sec < 0 || (priv->irqen & RTC_UF) ?
+ 0x80 : bin2bcd(priv->alarm_sec) & 0x7F;
+ buf[1] = priv->alarm_min < 0 || (priv->irqen & RTC_UF) ?
+ 0x80 : bin2bcd(priv->alarm_min) & 0x7F;
+ buf[2] = priv->alarm_hour < 0 || (priv->irqen & RTC_UF) ?
+ 0x80 : bin2bcd(priv->alarm_hour) & 0x3F;
+ buf[3] = priv->alarm_mday < 0 || (priv->irqen & RTC_UF) ?
+ 0x80 : bin2bcd(priv->alarm_mday) & 0x7F;
+
+ res = regmap_bulk_write(priv->map, DS1343_ALM0_SEC_REG, buf, 4);
+ if (res)
+ return res;
+
+ if (priv->irqen) {
+ control |= DS1343_A0IE;
+ res = regmap_write(priv->map, DS1343_CONTROL_REG, control);
+ }
+
+ return res;
+}
+
+static int ds1343_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int res = 0;
+ unsigned int stat;
+
+ if (priv->irq <= 0)
+ return -EINVAL;
+
+ mutex_lock(&priv->mutex);
+
+ res = regmap_read(priv->map, DS1343_STATUS_REG, &stat);
+ if (res)
+ goto out;
+
+ alarm->enabled = !!(priv->irqen & RTC_AF);
+ alarm->pending = !!(stat & DS1343_IRQF0);
+
+ alarm->time.tm_sec = priv->alarm_sec < 0 ? 0 : priv->alarm_sec;
+ alarm->time.tm_min = priv->alarm_min < 0 ? 0 : priv->alarm_min;
+ alarm->time.tm_hour = priv->alarm_hour < 0 ? 0 : priv->alarm_hour;
+ alarm->time.tm_mday = priv->alarm_mday < 0 ? 0 : priv->alarm_mday;
+
+ alarm->time.tm_mon = -1;
+ alarm->time.tm_year = -1;
+ alarm->time.tm_wday = -1;
+ alarm->time.tm_yday = -1;
+ alarm->time.tm_isdst = -1;
+
+out:
+ mutex_unlock(&priv->mutex);
+ return res;
+}
+
+static int ds1343_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int res = 0;
+
+ if (priv->irq <= 0)
+ return -EINVAL;
+
+ mutex_lock(&priv->mutex);
+
+ priv->alarm_sec = alarm->time.tm_sec;
+ priv->alarm_min = alarm->time.tm_min;
+ priv->alarm_hour = alarm->time.tm_hour;
+ priv->alarm_mday = alarm->time.tm_mday;
+
+ if (alarm->enabled)
+ priv->irqen |= RTC_AF;
+
+ res = ds1343_update_alarm(dev);
+
+ mutex_unlock(&priv->mutex);
+
+ return res;
+}
+
+static int ds1343_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+ struct ds1343_priv *priv = dev_get_drvdata(dev);
+ int res = 0;
+
+ if (priv->irq <= 0)
+ return -EINVAL;
+
+ mutex_lock(&priv->mutex);
+
+ if (enabled)
+ priv->irqen |= RTC_AF;
+ else
+ priv->irqen &= ~RTC_AF;
+
+ res = ds1343_update_alarm(dev);
+
+ mutex_unlock(&priv->mutex);
+
+ return res;
+}
+
+static irqreturn_t ds1343_thread(int irq, void *dev_id)
+{
+ struct ds1343_priv *priv = dev_id;
+ unsigned int stat, control;
+ int res = 0;
+
+ mutex_lock(&priv->mutex);
+
+ res = regmap_read(priv->map, DS1343_STATUS_REG, &stat);
+ if (res)
+ goto out;
+
+ if (stat & DS1343_IRQF0) {
+ stat &= ~DS1343_IRQF0;
+ regmap_write(priv->map, DS1343_STATUS_REG, stat);
+
+ res = regmap_read(priv->map, DS1343_CONTROL_REG, &control);
+ if (res)
+ goto out;
+
+ control &= ~DS1343_A0IE;
+ regmap_write(priv->map, DS1343_CONTROL_REG, control);
+
+ rtc_update_irq(priv->rtc, 1, RTC_AF | RTC_IRQF);
+ }
+
+out:
+ mutex_unlock(&priv->mutex);
+ return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops ds1343_rtc_ops = {
+ .ioctl = ds1343_ioctl,
+ .read_time = ds1343_read_time,
+ .set_time = ds1343_set_time,
+ .read_alarm = ds1343_read_alarm,
+ .set_alarm = ds1343_set_alarm,
+ .alarm_irq_enable = ds1343_alarm_irq_enable,
+};
+
+static int ds1343_probe(struct spi_device *spi)
+{
+ struct ds1343_priv *priv;
+ struct regmap_config config;
+ unsigned int data;
+ int res;
+
+ memset(&config, 0, sizeof(config));
+ config.reg_bits = 8;
+ config.val_bits = 8;
+ config.write_flag_mask = 0x80;
+
+ priv = devm_kzalloc(&spi->dev, sizeof(struct ds1343_priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->spi = spi;
+ mutex_init(&priv->mutex);
+
+ /* RTC DS1347 works in spi mode 3 and
+ * its chip select is active high
+ */
+ spi->mode = SPI_MODE_3 | SPI_CS_HIGH;
+ spi->bits_per_word = 8;
+ res = spi_setup(spi);
+ if (res)
+ return res;
+
+ spi_set_drvdata(spi, priv);
+
+ priv->map = devm_regmap_init_spi(spi, &config);
+
+ if (IS_ERR(priv->map)) {
+ dev_err(&spi->dev, "spi regmap init failed for rtc ds1343\n");
+ return PTR_ERR(priv->map);
+ }
+
+ res = regmap_read(priv->map, DS1343_SECONDS_REG, &data);
+ if (res)
+ return res;
+
+ regmap_read(priv->map, DS1343_CONTROL_REG, &data);
+ data |= DS1343_INTCN;
+ data &= ~(DS1343_EOSC | DS1343_A1IE | DS1343_A0IE);
+ regmap_write(priv->map, DS1343_CONTROL_REG, data);
+
+ regmap_read(priv->map, DS1343_STATUS_REG, &data);
+ data &= ~(DS1343_OSF | DS1343_IRQF1 | DS1343_IRQF0);
+ regmap_write(priv->map, DS1343_STATUS_REG, data);
+
+ priv->rtc = devm_rtc_device_register(&spi->dev, "ds1343",
+ &ds1343_rtc_ops, THIS_MODULE);
+ if (IS_ERR(priv->rtc)) {
+ dev_err(&spi->dev, "unable to register rtc ds1343\n");
+ return PTR_ERR(priv->rtc);
+ }
+
+ priv->irq = spi->irq;
+
+ if (priv->irq >= 0) {
+ res = devm_request_threaded_irq(&spi->dev, spi->irq, NULL,
+ ds1343_thread,
+ IRQF_NO_SUSPEND | IRQF_ONESHOT,
+ "ds1343", priv);
+ if (res) {
+ priv->irq = -1;
+ dev_err(&spi->dev,
+ "unable to request irq for rtc ds1343\n");
+ } else {
+ device_set_wakeup_capable(&spi->dev, 1);
+ }
+ }
+
+ res = ds1343_sysfs_register(&spi->dev);
+ if (res)
+ dev_err(&spi->dev,
+ "unable to create sysfs entries for rtc ds1343\n");
+
+ return 0;
+}
+
+static int ds1343_remove(struct spi_device *spi)
+{
+ struct ds1343_priv *priv = spi_get_drvdata(spi);
+
+ if (spi->irq) {
+ mutex_lock(&priv->mutex);
+ priv->irqen &= ~RTC_AF;
+ mutex_unlock(&priv->mutex);
+
+ devm_free_irq(&spi->dev, spi->irq, priv);
+ }
+
+ spi_set_drvdata(spi, NULL);
+
+ ds1343_sysfs_unregister(&spi->dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+
+static int ds1343_suspend(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+
+ if (spi->irq >= 0 && device_may_wakeup(dev))
+ enable_irq_wake(spi->irq);
+
+ return 0;
+}
+
+static int ds1343_resume(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+
+ if (spi->irq >= 0 && device_may_wakeup(dev))
+ disable_irq_wake(spi->irq);
+
+ return 0;
+}
+
+#endif
+
+static SIMPLE_DEV_PM_OPS(ds1343_pm, ds1343_suspend, ds1343_resume);
+
+static struct spi_driver ds1343_driver = {
+ .driver = {
+ .name = "ds1343",
+ .owner = THIS_MODULE,
+ .pm = &ds1343_pm,
+ },
+ .probe = ds1343_probe,
+ .remove = ds1343_remove,
+ .id_table = ds1343_id,
+};
+
+module_spi_driver(ds1343_driver);
+
+MODULE_DESCRIPTION("DS1343 RTC SPI Driver");
+MODULE_AUTHOR("Raghavendra Chandra Ganiga <ravi23ganiga@gmail.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION(DS1343_DRV_VERSION);
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index 942103dac30f..c6b2191a4128 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -219,7 +219,7 @@ static int ds1742_rtc_remove(struct platform_device *pdev)
return 0;
}
-static struct of_device_id __maybe_unused ds1742_rtc_of_match[] = {
+static const struct of_device_id __maybe_unused ds1742_rtc_of_match[] = {
{ .compatible = "maxim,ds1742", },
{ }
};
diff --git a/drivers/rtc/rtc-efi.c b/drivers/rtc/rtc-efi.c
index 797aa0252ba9..c4c38431012e 100644
--- a/drivers/rtc/rtc-efi.c
+++ b/drivers/rtc/rtc-efi.c
@@ -35,7 +35,7 @@ static inline int
compute_yday(efi_time_t *eft)
{
/* efi_time_t.month is in the [1-12] so, we need -1 */
- return rtc_year_days(eft->day - 1, eft->month - 1, eft->year);
+ return rtc_year_days(eft->day, eft->month - 1, eft->year);
}
/*
* returns day of the week [0-6] 0=Sunday
diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c
index e5f13c4310fe..b936bb4096b5 100644
--- a/drivers/rtc/rtc-hym8563.c
+++ b/drivers/rtc/rtc-hym8563.c
@@ -418,6 +418,9 @@ static struct clk *hym8563_clkout_register_clk(struct hym8563 *hym8563)
init.num_parents = 0;
hym8563->clkout_hw.init = &init;
+ /* optional override of the clockname */
+ of_property_read_string(node, "clock-output-names", &init.name);
+
/* register the clock */
clk = clk_register(&client->dev, &hym8563->clkout_hw);
@@ -585,7 +588,7 @@ static const struct i2c_device_id hym8563_id[] = {
};
MODULE_DEVICE_TABLE(i2c, hym8563_id);
-static struct of_device_id hym8563_dt_idtable[] = {
+static const struct of_device_id hym8563_dt_idtable[] = {
{ .compatible = "haoyu,hym8563" },
{},
};
diff --git a/drivers/rtc/rtc-isl12057.c b/drivers/rtc/rtc-isl12057.c
index 41bd76aaff76..455b601d731d 100644
--- a/drivers/rtc/rtc-isl12057.c
+++ b/drivers/rtc/rtc-isl12057.c
@@ -278,7 +278,7 @@ static int isl12057_probe(struct i2c_client *client,
}
#ifdef CONFIG_OF
-static struct of_device_id isl12057_dt_match[] = {
+static const struct of_device_id isl12057_dt_match[] = {
{ .compatible = "isl,isl12057" },
{ },
};
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index a5248aa1abf1..7ff7427c2e6a 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -66,8 +66,6 @@
#define M41T80_FEATURE_WD (1 << 3) /* Extra watchdog resolution */
#define M41T80_FEATURE_SQ_ALT (1 << 4) /* RSx bits are in reg 4 */
-#define DRV_VERSION "0.05"
-
static DEFINE_MUTEX(m41t80_rtc_mutex);
static const struct i2c_device_id m41t80_id[] = {
{ "m41t62", M41T80_FEATURE_SQ | M41T80_FEATURE_SQ_ALT },
@@ -80,6 +78,7 @@ static const struct i2c_device_id m41t80_id[] = {
{ "m41st84", M41T80_FEATURE_HT | M41T80_FEATURE_BL | M41T80_FEATURE_SQ },
{ "m41st85", M41T80_FEATURE_HT | M41T80_FEATURE_BL | M41T80_FEATURE_SQ },
{ "m41st87", M41T80_FEATURE_HT | M41T80_FEATURE_BL | M41T80_FEATURE_SQ },
+ { "rv4162", M41T80_FEATURE_SQ | M41T80_FEATURE_WD | M41T80_FEATURE_SQ_ALT },
{ }
};
MODULE_DEVICE_TABLE(i2c, m41t80_id);
@@ -232,7 +231,7 @@ static ssize_t m41t80_sysfs_show_flags(struct device *dev,
val = i2c_smbus_read_byte_data(client, M41T80_REG_FLAGS);
if (val < 0)
- return -EIO;
+ return val;
return sprintf(buf, "%#x\n", val);
}
static DEVICE_ATTR(flags, S_IRUGO, m41t80_sysfs_show_flags, NULL);
@@ -252,7 +251,7 @@ static ssize_t m41t80_sysfs_show_sqwfreq(struct device *dev,
reg_sqw = M41T80_REG_WDAY;
val = i2c_smbus_read_byte_data(client, reg_sqw);
if (val < 0)
- return -EIO;
+ return val;
val = (val >> 4) & 0xf;
switch (val) {
case 0:
@@ -271,7 +270,7 @@ static ssize_t m41t80_sysfs_set_sqwfreq(struct device *dev,
{
struct i2c_client *client = to_i2c_client(dev);
struct m41t80_data *clientdata = i2c_get_clientdata(client);
- int almon, sqw, reg_sqw;
+ int almon, sqw, reg_sqw, rc;
int val = simple_strtoul(buf, NULL, 0);
if (!(clientdata->features & M41T80_FEATURE_SQ))
@@ -291,21 +290,30 @@ static ssize_t m41t80_sysfs_set_sqwfreq(struct device *dev,
/* disable SQW, set SQW frequency & re-enable */
almon = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
if (almon < 0)
- return -EIO;
+ return almon;
reg_sqw = M41T80_REG_SQW;
if (clientdata->features & M41T80_FEATURE_SQ_ALT)
reg_sqw = M41T80_REG_WDAY;
sqw = i2c_smbus_read_byte_data(client, reg_sqw);
if (sqw < 0)
- return -EIO;
+ return sqw;
sqw = (sqw & 0x0f) | (val << 4);
- if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
- almon & ~M41T80_ALMON_SQWE) < 0 ||
- i2c_smbus_write_byte_data(client, reg_sqw, sqw) < 0)
- return -EIO;
- if (val && i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
- almon | M41T80_ALMON_SQWE) < 0)
- return -EIO;
+
+ rc = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
+ almon & ~M41T80_ALMON_SQWE);
+ if (rc < 0)
+ return rc;
+
+ if (val) {
+ rc = i2c_smbus_write_byte_data(client, reg_sqw, sqw);
+ if (rc < 0)
+ return rc;
+
+ rc = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
+ almon | M41T80_ALMON_SQWE);
+ if (rc <0)
+ return rc;
+ }
return count;
}
static DEVICE_ATTR(sqwfreq, S_IRUGO | S_IWUSR,
@@ -629,40 +637,28 @@ static int m41t80_probe(struct i2c_client *client,
struct m41t80_data *clientdata = NULL;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C
- | I2C_FUNC_SMBUS_BYTE_DATA)) {
- rc = -ENODEV;
- goto exit;
- }
-
- dev_info(&client->dev,
- "chip found, driver version " DRV_VERSION "\n");
+ | I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
clientdata = devm_kzalloc(&client->dev, sizeof(*clientdata),
GFP_KERNEL);
- if (!clientdata) {
- rc = -ENOMEM;
- goto exit;
- }
+ if (!clientdata)
+ return -ENOMEM;
clientdata->features = id->driver_data;
i2c_set_clientdata(client, clientdata);
rtc = devm_rtc_device_register(&client->dev, client->name,
&m41t80_rtc_ops, THIS_MODULE);
- if (IS_ERR(rtc)) {
- rc = PTR_ERR(rtc);
- rtc = NULL;
- goto exit;
- }
+ if (IS_ERR(rtc))
+ return PTR_ERR(rtc);
clientdata->rtc = rtc;
/* Make sure HT (Halt Update) bit is cleared */
rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_HOUR);
- if (rc < 0)
- goto ht_err;
- if (rc & M41T80_ALHOUR_HT) {
+ if (rc >= 0 && rc & M41T80_ALHOUR_HT) {
if (clientdata->features & M41T80_FEATURE_HT) {
m41t80_get_datetime(client, &tm);
dev_info(&client->dev, "HT bit was set!\n");
@@ -673,53 +669,44 @@ static int m41t80_probe(struct i2c_client *client,
tm.tm_mon + 1, tm.tm_mday, tm.tm_hour,
tm.tm_min, tm.tm_sec);
}
- if (i2c_smbus_write_byte_data(client,
- M41T80_REG_ALARM_HOUR,
- rc & ~M41T80_ALHOUR_HT) < 0)
- goto ht_err;
+ rc = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_HOUR,
+ rc & ~M41T80_ALHOUR_HT);
+ }
+
+ if (rc < 0) {
+ dev_err(&client->dev, "Can't clear HT bit\n");
+ return rc;
}
/* Make sure ST (stop) bit is cleared */
rc = i2c_smbus_read_byte_data(client, M41T80_REG_SEC);
- if (rc < 0)
- goto st_err;
- if (rc & M41T80_SEC_ST) {
- if (i2c_smbus_write_byte_data(client, M41T80_REG_SEC,
- rc & ~M41T80_SEC_ST) < 0)
- goto st_err;
+ if (rc >= 0 && rc & M41T80_SEC_ST)
+ rc = i2c_smbus_write_byte_data(client, M41T80_REG_SEC,
+ rc & ~M41T80_SEC_ST);
+ if (rc < 0) {
+ dev_err(&client->dev, "Can't clear ST bit\n");
+ return rc;
}
rc = m41t80_sysfs_register(&client->dev);
if (rc)
- goto exit;
+ return rc;
#ifdef CONFIG_RTC_DRV_M41T80_WDT
if (clientdata->features & M41T80_FEATURE_HT) {
save_client = client;
rc = misc_register(&wdt_dev);
if (rc)
- goto exit;
+ return rc;
rc = register_reboot_notifier(&wdt_notifier);
if (rc) {
misc_deregister(&wdt_dev);
- goto exit;
+ return rc;
}
}
#endif
return 0;
-
-st_err:
- rc = -EIO;
- dev_err(&client->dev, "Can't clear ST bit\n");
- goto exit;
-ht_err:
- rc = -EIO;
- dev_err(&client->dev, "Can't clear HT bit\n");
- goto exit;
-
-exit:
- return rc;
}
static int m41t80_remove(struct i2c_client *client)
@@ -750,4 +737,3 @@ module_i2c_driver(m41t80_driver);
MODULE_AUTHOR("Alexander Bigga <ab@mycable.de>");
MODULE_DESCRIPTION("ST Microelectronics M41T80 series RTC I2C Client Driver");
MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/rtc/rtc-mcp795.c b/drivers/rtc/rtc-mcp795.c
new file mode 100644
index 000000000000..34295bf00416
--- /dev/null
+++ b/drivers/rtc/rtc-mcp795.c
@@ -0,0 +1,199 @@
+/*
+ * SPI Driver for Microchip MCP795 RTC
+ *
+ * Copyright (C) Josef Gajdusek <atx@atx.name>
+ *
+ * based on other Linux RTC drivers
+ *
+ * Device datasheet:
+ * http://ww1.microchip.com/downloads/en/DeviceDoc/22280A.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/printk.h>
+#include <linux/spi/spi.h>
+#include <linux/rtc.h>
+
+/* MCP795 Instructions, see datasheet table 3-1 */
+#define MCP795_EEREAD 0x03
+#define MCP795_EEWRITE 0x02
+#define MCP795_EEWRDI 0x04
+#define MCP795_EEWREN 0x06
+#define MCP795_SRREAD 0x05
+#define MCP795_SRWRITE 0x01
+#define MCP795_READ 0x13
+#define MCP795_WRITE 0x12
+#define MCP795_UNLOCK 0x14
+#define MCP795_IDWRITE 0x32
+#define MCP795_IDREAD 0x33
+#define MCP795_CLRWDT 0x44
+#define MCP795_CLRRAM 0x54
+
+#define MCP795_ST_BIT 0x80
+#define MCP795_24_BIT 0x40
+
+static int mcp795_rtcc_read(struct device *dev, u8 addr, u8 *buf, u8 count)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ int ret;
+ u8 tx[2];
+
+ tx[0] = MCP795_READ;
+ tx[1] = addr;
+ ret = spi_write_then_read(spi, tx, sizeof(tx), buf, count);
+
+ if (ret)
+ dev_err(dev, "Failed reading %d bytes from address %x.\n",
+ count, addr);
+
+ return ret;
+}
+
+static int mcp795_rtcc_write(struct device *dev, u8 addr, u8 *data, u8 count)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ int ret;
+ u8 tx[2 + count];
+
+ tx[0] = MCP795_WRITE;
+ tx[1] = addr;
+ memcpy(&tx[2], data, count);
+
+ ret = spi_write(spi, tx, 2 + count);
+
+ if (ret)
+ dev_err(dev, "Failed to write %d bytes to address %x.\n",
+ count, addr);
+
+ return ret;
+}
+
+static int mcp795_rtcc_set_bits(struct device *dev, u8 addr, u8 mask, u8 state)
+{
+ int ret;
+ u8 tmp;
+
+ ret = mcp795_rtcc_read(dev, addr, &tmp, 1);
+ if (ret)
+ return ret;
+
+ if ((tmp & mask) != state) {
+ tmp = (tmp & ~mask) | state;
+ ret = mcp795_rtcc_write(dev, addr, &tmp, 1);
+ }
+
+ return ret;
+}
+
+static int mcp795_set_time(struct device *dev, struct rtc_time *tim)
+{
+ int ret;
+ u8 data[7];
+
+ /* Read first, so we can leave config bits untouched */
+ ret = mcp795_rtcc_read(dev, 0x01, data, sizeof(data));
+
+ if (ret)
+ return ret;
+
+ data[0] = (data[0] & 0x80) | ((tim->tm_sec / 10) << 4) | (tim->tm_sec % 10);
+ data[1] = (data[1] & 0x80) | ((tim->tm_min / 10) << 4) | (tim->tm_min % 10);
+ data[2] = ((tim->tm_hour / 10) << 4) | (tim->tm_hour % 10);
+ data[4] = ((tim->tm_mday / 10) << 4) | ((tim->tm_mday) % 10);
+ data[5] = (data[5] & 0x10) | (tim->tm_mon / 10) | (tim->tm_mon % 10);
+
+ if (tim->tm_year > 100)
+ tim->tm_year -= 100;
+
+ data[6] = ((tim->tm_year / 10) << 4) | (tim->tm_year % 10);
+
+ ret = mcp795_rtcc_write(dev, 0x01, data, sizeof(data));
+
+ if (ret)
+ return ret;
+
+ dev_dbg(dev, "Set mcp795: %04d-%02d-%02d %02d:%02d:%02d\n",
+ tim->tm_year + 1900, tim->tm_mon, tim->tm_mday,
+ tim->tm_hour, tim->tm_min, tim->tm_sec);
+
+ return 0;
+}
+
+static int mcp795_read_time(struct device *dev, struct rtc_time *tim)
+{
+ int ret;
+ u8 data[7];
+
+ ret = mcp795_rtcc_read(dev, 0x01, data, sizeof(data));
+
+ if (ret)
+ return ret;
+
+ tim->tm_sec = ((data[0] & 0x70) >> 4) * 10 + (data[0] & 0x0f);
+ tim->tm_min = ((data[1] & 0x70) >> 4) * 10 + (data[1] & 0x0f);
+ tim->tm_hour = ((data[2] & 0x30) >> 4) * 10 + (data[2] & 0x0f);
+ tim->tm_mday = ((data[4] & 0x30) >> 4) * 10 + (data[4] & 0x0f);
+ tim->tm_mon = ((data[5] & 0x10) >> 4) * 10 + (data[5] & 0x0f);
+ tim->tm_year = ((data[6] & 0xf0) >> 4) * 10 + (data[6] & 0x0f) + 100; /* Assume we are in 20xx */
+
+ dev_dbg(dev, "Read from mcp795: %04d-%02d-%02d %02d:%02d:%02d\n",
+ tim->tm_year + 1900, tim->tm_mon, tim->tm_mday,
+ tim->tm_hour, tim->tm_min, tim->tm_sec);
+
+ return rtc_valid_tm(tim);
+}
+
+static struct rtc_class_ops mcp795_rtc_ops = {
+ .read_time = mcp795_read_time,
+ .set_time = mcp795_set_time
+};
+
+static int mcp795_probe(struct spi_device *spi)
+{
+ struct rtc_device *rtc;
+ int ret;
+
+ spi->mode = SPI_MODE_0;
+ spi->bits_per_word = 8;
+ ret = spi_setup(spi);
+ if (ret) {
+ dev_err(&spi->dev, "Unable to setup SPI\n");
+ return ret;
+ }
+
+ /* Start the oscillator */
+ mcp795_rtcc_set_bits(&spi->dev, 0x01, MCP795_ST_BIT, MCP795_ST_BIT);
+ /* Clear the 12 hour mode flag*/
+ mcp795_rtcc_set_bits(&spi->dev, 0x03, MCP795_24_BIT, 0);
+
+ rtc = devm_rtc_device_register(&spi->dev, "rtc-mcp795",
+ &mcp795_rtc_ops, THIS_MODULE);
+ if (IS_ERR(rtc))
+ return PTR_ERR(rtc);
+
+ spi_set_drvdata(spi, rtc);
+
+ return 0;
+}
+
+static struct spi_driver mcp795_driver = {
+ .driver = {
+ .name = "rtc-mcp795",
+ .owner = THIS_MODULE,
+ },
+ .probe = mcp795_probe,
+};
+
+module_spi_driver(mcp795_driver);
+
+MODULE_DESCRIPTION("MCP795 RTC SPI Driver");
+MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:mcp795");
diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c
index d15a999363fc..6aaec2fc7c0d 100644
--- a/drivers/rtc/rtc-mv.c
+++ b/drivers/rtc/rtc-mv.c
@@ -319,7 +319,7 @@ static int __exit mv_rtc_remove(struct platform_device *pdev)
}
#ifdef CONFIG_OF
-static struct of_device_id rtc_mv_of_match_table[] = {
+static const struct of_device_id rtc_mv_of_match_table[] = {
{ .compatible = "marvell,orion-rtc", },
{}
};
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 26de5f8c2ae4..21142e6574a9 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -73,43 +73,52 @@
#define OMAP_RTC_IRQWAKEEN 0x7c
/* OMAP_RTC_CTRL_REG bit fields: */
-#define OMAP_RTC_CTRL_SPLIT (1<<7)
-#define OMAP_RTC_CTRL_DISABLE (1<<6)
-#define OMAP_RTC_CTRL_SET_32_COUNTER (1<<5)
-#define OMAP_RTC_CTRL_TEST (1<<4)
-#define OMAP_RTC_CTRL_MODE_12_24 (1<<3)
-#define OMAP_RTC_CTRL_AUTO_COMP (1<<2)
-#define OMAP_RTC_CTRL_ROUND_30S (1<<1)
-#define OMAP_RTC_CTRL_STOP (1<<0)
+#define OMAP_RTC_CTRL_SPLIT BIT(7)
+#define OMAP_RTC_CTRL_DISABLE BIT(6)
+#define OMAP_RTC_CTRL_SET_32_COUNTER BIT(5)
+#define OMAP_RTC_CTRL_TEST BIT(4)
+#define OMAP_RTC_CTRL_MODE_12_24 BIT(3)
+#define OMAP_RTC_CTRL_AUTO_COMP BIT(2)
+#define OMAP_RTC_CTRL_ROUND_30S BIT(1)
+#define OMAP_RTC_CTRL_STOP BIT(0)
/* OMAP_RTC_STATUS_REG bit fields: */
-#define OMAP_RTC_STATUS_POWER_UP (1<<7)
-#define OMAP_RTC_STATUS_ALARM (1<<6)
-#define OMAP_RTC_STATUS_1D_EVENT (1<<5)
-#define OMAP_RTC_STATUS_1H_EVENT (1<<4)
-#define OMAP_RTC_STATUS_1M_EVENT (1<<3)
-#define OMAP_RTC_STATUS_1S_EVENT (1<<2)
-#define OMAP_RTC_STATUS_RUN (1<<1)
-#define OMAP_RTC_STATUS_BUSY (1<<0)
+#define OMAP_RTC_STATUS_POWER_UP BIT(7)
+#define OMAP_RTC_STATUS_ALARM BIT(6)
+#define OMAP_RTC_STATUS_1D_EVENT BIT(5)
+#define OMAP_RTC_STATUS_1H_EVENT BIT(4)
+#define OMAP_RTC_STATUS_1M_EVENT BIT(3)
+#define OMAP_RTC_STATUS_1S_EVENT BIT(2)
+#define OMAP_RTC_STATUS_RUN BIT(1)
+#define OMAP_RTC_STATUS_BUSY BIT(0)
/* OMAP_RTC_INTERRUPTS_REG bit fields: */
-#define OMAP_RTC_INTERRUPTS_IT_ALARM (1<<3)
-#define OMAP_RTC_INTERRUPTS_IT_TIMER (1<<2)
+#define OMAP_RTC_INTERRUPTS_IT_ALARM BIT(3)
+#define OMAP_RTC_INTERRUPTS_IT_TIMER BIT(2)
+
+/* OMAP_RTC_OSC_REG bit fields: */
+#define OMAP_RTC_OSC_32KCLK_EN BIT(6)
/* OMAP_RTC_IRQWAKEEN bit fields: */
-#define OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN (1<<1)
+#define OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN BIT(1)
/* OMAP_RTC_KICKER values */
#define KICK0_VALUE 0x83e70b13
#define KICK1_VALUE 0x95a4f1e0
-#define OMAP_RTC_HAS_KICKER 0x1
+#define OMAP_RTC_HAS_KICKER BIT(0)
/*
* Few RTC IP revisions has special WAKE-EN Register to enable Wakeup
* generation for event Alarm.
*/
-#define OMAP_RTC_HAS_IRQWAKEEN 0x2
+#define OMAP_RTC_HAS_IRQWAKEEN BIT(1)
+
+/*
+ * Some RTC IP revisions (like those in AM335x and DRA7x) need
+ * the 32KHz clock to be explicitly enabled.
+ */
+#define OMAP_RTC_HAS_32KCLK_EN BIT(2)
static void __iomem *rtc_base;
@@ -162,17 +171,28 @@ static irqreturn_t rtc_irq(int irq, void *rtc)
static int omap_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
{
- u8 reg;
+ u8 reg, irqwake_reg = 0;
+ struct platform_device *pdev = to_platform_device(dev);
+ const struct platform_device_id *id_entry =
+ platform_get_device_id(pdev);
local_irq_disable();
rtc_wait_not_busy();
reg = rtc_read(OMAP_RTC_INTERRUPTS_REG);
- if (enabled)
+ if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN)
+ irqwake_reg = rtc_read(OMAP_RTC_IRQWAKEEN);
+
+ if (enabled) {
reg |= OMAP_RTC_INTERRUPTS_IT_ALARM;
- else
+ irqwake_reg |= OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN;
+ } else {
reg &= ~OMAP_RTC_INTERRUPTS_IT_ALARM;
+ irqwake_reg &= ~OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN;
+ }
rtc_wait_not_busy();
rtc_write(reg, OMAP_RTC_INTERRUPTS_REG);
+ if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN)
+ rtc_write(irqwake_reg, OMAP_RTC_IRQWAKEEN);
local_irq_enable();
return 0;
@@ -272,7 +292,10 @@ static int omap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
static int omap_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
{
- u8 reg;
+ u8 reg, irqwake_reg = 0;
+ struct platform_device *pdev = to_platform_device(dev);
+ const struct platform_device_id *id_entry =
+ platform_get_device_id(pdev);
if (tm2bcd(&alm->time) < 0)
return -EINVAL;
@@ -288,11 +311,19 @@ static int omap_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
rtc_write(alm->time.tm_sec, OMAP_RTC_ALARM_SECONDS_REG);
reg = rtc_read(OMAP_RTC_INTERRUPTS_REG);
- if (alm->enabled)
+ if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN)
+ irqwake_reg = rtc_read(OMAP_RTC_IRQWAKEEN);
+
+ if (alm->enabled) {
reg |= OMAP_RTC_INTERRUPTS_IT_ALARM;
- else
+ irqwake_reg |= OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN;
+ } else {
reg &= ~OMAP_RTC_INTERRUPTS_IT_ALARM;
+ irqwake_reg &= ~OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN;
+ }
rtc_write(reg, OMAP_RTC_INTERRUPTS_REG);
+ if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN)
+ rtc_write(irqwake_reg, OMAP_RTC_IRQWAKEEN);
local_irq_enable();
@@ -319,7 +350,8 @@ static struct platform_device_id omap_rtc_devtype[] = {
},
[OMAP_RTC_DATA_AM3352_IDX] = {
.name = "am3352-rtc",
- .driver_data = OMAP_RTC_HAS_KICKER | OMAP_RTC_HAS_IRQWAKEEN,
+ .driver_data = OMAP_RTC_HAS_KICKER | OMAP_RTC_HAS_IRQWAKEEN |
+ OMAP_RTC_HAS_32KCLK_EN,
},
[OMAP_RTC_DATA_DA830_IDX] = {
.name = "da830-rtc",
@@ -352,6 +384,12 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
if (of_id)
pdev->id_entry = of_id->data;
+ id_entry = platform_get_device_id(pdev);
+ if (!id_entry) {
+ dev_err(&pdev->dev, "no matching device entry\n");
+ return -ENODEV;
+ }
+
omap_rtc_timer = platform_get_irq(pdev, 0);
if (omap_rtc_timer <= 0) {
pr_debug("%s: no update irq?\n", pdev->name);
@@ -373,8 +411,7 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
- id_entry = platform_get_device_id(pdev);
- if (id_entry && (id_entry->driver_data & OMAP_RTC_HAS_KICKER)) {
+ if (id_entry->driver_data & OMAP_RTC_HAS_KICKER) {
rtc_writel(KICK0_VALUE, OMAP_RTC_KICK0_REG);
rtc_writel(KICK1_VALUE, OMAP_RTC_KICK1_REG);
}
@@ -393,6 +430,10 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
*/
rtc_write(0, OMAP_RTC_INTERRUPTS_REG);
+ /* enable RTC functional clock */
+ if (id_entry->driver_data & OMAP_RTC_HAS_32KCLK_EN)
+ rtc_writel(OMAP_RTC_OSC_32KCLK_EN, OMAP_RTC_OSC_REG);
+
/* clear old status */
reg = rtc_read(OMAP_RTC_STATUS_REG);
if (reg & (u8) OMAP_RTC_STATUS_POWER_UP) {
@@ -452,7 +493,7 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
return 0;
fail0:
- if (id_entry && (id_entry->driver_data & OMAP_RTC_HAS_KICKER))
+ if (id_entry->driver_data & OMAP_RTC_HAS_KICKER)
rtc_writel(0, OMAP_RTC_KICK0_REG);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
@@ -469,7 +510,7 @@ static int __exit omap_rtc_remove(struct platform_device *pdev)
/* leave rtc running, but disable irqs */
rtc_write(0, OMAP_RTC_INTERRUPTS_REG);
- if (id_entry && (id_entry->driver_data & OMAP_RTC_HAS_KICKER))
+ if (id_entry->driver_data & OMAP_RTC_HAS_KICKER)
rtc_writel(0, OMAP_RTC_KICK0_REG);
/* Disable the clock/module */
@@ -484,28 +525,16 @@ static u8 irqstat;
static int omap_rtc_suspend(struct device *dev)
{
- u8 irqwake_stat;
- struct platform_device *pdev = to_platform_device(dev);
- const struct platform_device_id *id_entry =
- platform_get_device_id(pdev);
-
irqstat = rtc_read(OMAP_RTC_INTERRUPTS_REG);
/* FIXME the RTC alarm is not currently acting as a wakeup event
* source on some platforms, and in fact this enable() call is just
* saving a flag that's never used...
*/
- if (device_may_wakeup(dev)) {
+ if (device_may_wakeup(dev))
enable_irq_wake(omap_rtc_alarm);
-
- if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN) {
- irqwake_stat = rtc_read(OMAP_RTC_IRQWAKEEN);
- irqwake_stat |= OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN;
- rtc_write(irqwake_stat, OMAP_RTC_IRQWAKEEN);
- }
- } else {
+ else
rtc_write(0, OMAP_RTC_INTERRUPTS_REG);
- }
/* Disable the clock/module */
pm_runtime_put_sync(dev);
@@ -515,25 +544,14 @@ static int omap_rtc_suspend(struct device *dev)
static int omap_rtc_resume(struct device *dev)
{
- u8 irqwake_stat;
- struct platform_device *pdev = to_platform_device(dev);
- const struct platform_device_id *id_entry =
- platform_get_device_id(pdev);
-
/* Enable the clock/module so that we can access the registers */
pm_runtime_get_sync(dev);
- if (device_may_wakeup(dev)) {
+ if (device_may_wakeup(dev))
disable_irq_wake(omap_rtc_alarm);
-
- if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN) {
- irqwake_stat = rtc_read(OMAP_RTC_IRQWAKEEN);
- irqwake_stat &= ~OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN;
- rtc_write(irqwake_stat, OMAP_RTC_IRQWAKEEN);
- }
- } else {
+ else
rtc_write(irqstat, OMAP_RTC_INTERRUPTS_REG);
- }
+
return 0;
}
#endif
diff --git a/drivers/rtc/rtc-palmas.c b/drivers/rtc/rtc-palmas.c
index c360d62fb3f6..4dfe2d793fa3 100644
--- a/drivers/rtc/rtc-palmas.c
+++ b/drivers/rtc/rtc-palmas.c
@@ -352,7 +352,7 @@ static SIMPLE_DEV_PM_OPS(palmas_rtc_pm_ops, palmas_rtc_suspend,
palmas_rtc_resume);
#ifdef CONFIG_OF
-static struct of_device_id of_palmas_rtc_match[] = {
+static const struct of_device_id of_palmas_rtc_match[] = {
{ .compatible = "ti,palmas-rtc"},
{ },
};
diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c
index cccbf9d89729..4561f375327d 100644
--- a/drivers/rtc/rtc-pxa.c
+++ b/drivers/rtc/rtc-pxa.c
@@ -389,7 +389,7 @@ static int __exit pxa_rtc_remove(struct platform_device *pdev)
}
#ifdef CONFIG_OF
-static struct of_device_id pxa_rtc_dt_ids[] = {
+static const struct of_device_id pxa_rtc_dt_ids[] = {
{ .compatible = "marvell,pxa-rtc" },
{}
};
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 0f7adeb1944a..b6e1ca08c2c0 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -338,7 +338,7 @@ static SIMPLE_DEV_PM_OPS(sa1100_rtc_pm_ops, sa1100_rtc_suspend,
sa1100_rtc_resume);
#ifdef CONFIG_OF
-static struct of_device_id sa1100_rtc_dt_ids[] = {
+static const struct of_device_id sa1100_rtc_dt_ids[] = {
{ .compatible = "mrvl,sa1100-rtc", },
{ .compatible = "mrvl,mmp-rtc", },
{}
diff --git a/drivers/rtc/rtc-xgene.c b/drivers/rtc/rtc-xgene.c
new file mode 100644
index 000000000000..14129cc85bdb
--- /dev/null
+++ b/drivers/rtc/rtc-xgene.c
@@ -0,0 +1,278 @@
+/*
+ * APM X-Gene SoC Real Time Clock Driver
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Author: Rameshwar Prasad Sahu <rsahu@apm.com>
+ * Loc Ho <lho@apm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/rtc.h>
+
+/* RTC CSR Registers */
+#define RTC_CCVR 0x00
+#define RTC_CMR 0x04
+#define RTC_CLR 0x08
+#define RTC_CCR 0x0C
+#define RTC_CCR_IE BIT(0)
+#define RTC_CCR_MASK BIT(1)
+#define RTC_CCR_EN BIT(2)
+#define RTC_CCR_WEN BIT(3)
+#define RTC_STAT 0x10
+#define RTC_STAT_BIT BIT(0)
+#define RTC_RSTAT 0x14
+#define RTC_EOI 0x18
+#define RTC_VER 0x1C
+
+struct xgene_rtc_dev {
+ struct rtc_device *rtc;
+ struct device *dev;
+ unsigned long alarm_time;
+ void __iomem *csr_base;
+ struct clk *clk;
+ unsigned int irq_wake;
+};
+
+static int xgene_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ struct xgene_rtc_dev *pdata = dev_get_drvdata(dev);
+
+ rtc_time_to_tm(readl(pdata->csr_base + RTC_CCVR), tm);
+ return rtc_valid_tm(tm);
+}
+
+static int xgene_rtc_set_mmss(struct device *dev, unsigned long secs)
+{
+ struct xgene_rtc_dev *pdata = dev_get_drvdata(dev);
+
+ /*
+ * NOTE: After the following write, the RTC_CCVR is only reflected
+ * after the update cycle of 1 seconds.
+ */
+ writel((u32) secs, pdata->csr_base + RTC_CLR);
+ readl(pdata->csr_base + RTC_CLR); /* Force a barrier */
+
+ return 0;
+}
+
+static int xgene_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct xgene_rtc_dev *pdata = dev_get_drvdata(dev);
+
+ rtc_time_to_tm(pdata->alarm_time, &alrm->time);
+ alrm->enabled = readl(pdata->csr_base + RTC_CCR) & RTC_CCR_IE;
+
+ return 0;
+}
+
+static int xgene_rtc_alarm_irq_enable(struct device *dev, u32 enabled)
+{
+ struct xgene_rtc_dev *pdata = dev_get_drvdata(dev);
+ u32 ccr;
+
+ ccr = readl(pdata->csr_base + RTC_CCR);
+ if (enabled) {
+ ccr &= ~RTC_CCR_MASK;
+ ccr |= RTC_CCR_IE;
+ } else {
+ ccr &= ~RTC_CCR_IE;
+ ccr |= RTC_CCR_MASK;
+ }
+ writel(ccr, pdata->csr_base + RTC_CCR);
+
+ return 0;
+}
+
+static int xgene_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+ struct xgene_rtc_dev *pdata = dev_get_drvdata(dev);
+ unsigned long rtc_time;
+ unsigned long alarm_time;
+
+ rtc_time = readl(pdata->csr_base + RTC_CCVR);
+ rtc_tm_to_time(&alrm->time, &alarm_time);
+
+ pdata->alarm_time = alarm_time;
+ writel((u32) pdata->alarm_time, pdata->csr_base + RTC_CMR);
+
+ xgene_rtc_alarm_irq_enable(dev, alrm->enabled);
+
+ return 0;
+}
+
+static const struct rtc_class_ops xgene_rtc_ops = {
+ .read_time = xgene_rtc_read_time,
+ .set_mmss = xgene_rtc_set_mmss,
+ .read_alarm = xgene_rtc_read_alarm,
+ .set_alarm = xgene_rtc_set_alarm,
+ .alarm_irq_enable = xgene_rtc_alarm_irq_enable,
+};
+
+static irqreturn_t xgene_rtc_interrupt(int irq, void *id)
+{
+ struct xgene_rtc_dev *pdata = (struct xgene_rtc_dev *) id;
+
+ /* Check if interrupt asserted */
+ if (!(readl(pdata->csr_base + RTC_STAT) & RTC_STAT_BIT))
+ return IRQ_NONE;
+
+ /* Clear interrupt */
+ readl(pdata->csr_base + RTC_EOI);
+
+ rtc_update_irq(pdata->rtc, 1, RTC_IRQF | RTC_AF);
+
+ return IRQ_HANDLED;
+}
+
+static int xgene_rtc_probe(struct platform_device *pdev)
+{
+ struct xgene_rtc_dev *pdata;
+ struct resource *res;
+ int ret;
+ int irq;
+
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ platform_set_drvdata(pdev, pdata);
+ pdata->dev = &pdev->dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ pdata->csr_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(pdata->csr_base))
+ return PTR_ERR(pdata->csr_base);
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "No IRQ resource\n");
+ return irq;
+ }
+ ret = devm_request_irq(&pdev->dev, irq, xgene_rtc_interrupt, 0,
+ dev_name(&pdev->dev), pdata);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not request IRQ\n");
+ return ret;
+ }
+
+ pdata->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(pdata->clk)) {
+ dev_err(&pdev->dev, "Couldn't get the clock for RTC\n");
+ return -ENODEV;
+ }
+ clk_prepare_enable(pdata->clk);
+
+ /* Turn on the clock and the crystal */
+ writel(RTC_CCR_EN, pdata->csr_base + RTC_CCR);
+
+ device_init_wakeup(&pdev->dev, 1);
+
+ pdata->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
+ &xgene_rtc_ops, THIS_MODULE);
+ if (IS_ERR(pdata->rtc)) {
+ clk_disable_unprepare(pdata->clk);
+ return PTR_ERR(pdata->rtc);
+ }
+
+ /* HW does not support update faster than 1 seconds */
+ pdata->rtc->uie_unsupported = 1;
+
+ return 0;
+}
+
+static int xgene_rtc_remove(struct platform_device *pdev)
+{
+ struct xgene_rtc_dev *pdata = platform_get_drvdata(pdev);
+
+ xgene_rtc_alarm_irq_enable(&pdev->dev, 0);
+ device_init_wakeup(&pdev->dev, 0);
+ clk_disable_unprepare(pdata->clk);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int xgene_rtc_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct xgene_rtc_dev *pdata = platform_get_drvdata(pdev);
+ int irq;
+
+ irq = platform_get_irq(pdev, 0);
+ if (device_may_wakeup(&pdev->dev)) {
+ if (!enable_irq_wake(irq))
+ pdata->irq_wake = 1;
+ } else {
+ xgene_rtc_alarm_irq_enable(dev, 0);
+ clk_disable(pdata->clk);
+ }
+
+ return 0;
+}
+
+static int xgene_rtc_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct xgene_rtc_dev *pdata = platform_get_drvdata(pdev);
+ int irq;
+
+ irq = platform_get_irq(pdev, 0);
+ if (device_may_wakeup(&pdev->dev)) {
+ if (pdata->irq_wake) {
+ disable_irq_wake(irq);
+ pdata->irq_wake = 0;
+ }
+ } else {
+ clk_enable(pdata->clk);
+ xgene_rtc_alarm_irq_enable(dev, 1);
+ }
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(xgene_rtc_pm_ops, xgene_rtc_suspend, xgene_rtc_resume);
+
+#ifdef CONFIG_OF
+static const struct of_device_id xgene_rtc_of_match[] = {
+ {.compatible = "apm,xgene-rtc" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, xgene_rtc_of_match);
+#endif
+
+static struct platform_driver xgene_rtc_driver = {
+ .probe = xgene_rtc_probe,
+ .remove = xgene_rtc_remove,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "xgene-rtc",
+ .pm = &xgene_rtc_pm_ops,
+ .of_match_table = of_match_ptr(xgene_rtc_of_match),
+ },
+};
+
+module_platform_driver(xgene_rtc_driver);
+
+MODULE_DESCRIPTION("APM X-Gene SoC RTC driver");
+MODULE_AUTHOR("Rameshwar Sahu <rsahu@apm.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/scsi_sysctl.c b/drivers/scsi/scsi_sysctl.c
index 2b6b93f7d8ef..546f16299ef9 100644
--- a/drivers/scsi/scsi_sysctl.c
+++ b/drivers/scsi/scsi_sysctl.c
@@ -12,7 +12,7 @@
#include "scsi_priv.h"
-static ctl_table scsi_table[] = {
+static struct ctl_table scsi_table[] = {
{ .procname = "logging_level",
.data = &scsi_logging_level,
.maxlen = sizeof(scsi_logging_level),
@@ -21,14 +21,14 @@ static ctl_table scsi_table[] = {
{ }
};
-static ctl_table scsi_dir_table[] = {
+static struct ctl_table scsi_dir_table[] = {
{ .procname = "scsi",
.mode = 0555,
.child = scsi_table },
{ }
};
-static ctl_table scsi_root_table[] = {
+static struct ctl_table scsi_root_table[] = {
{ .procname = "dev",
.mode = 0555,
.child = scsi_dir_table },
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index b767a64e49d9..454b65898e2c 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -46,6 +46,7 @@
#include <linux/jiffies.h>
#include <linux/syscalls.h>
#include <linux/of.h>
+#include <linux/rcupdate.h>
#include <asm/ptrace.h>
#include <asm/irq_regs.h>
@@ -510,9 +511,9 @@ void __handle_sysrq(int key, bool check_mask)
struct sysrq_key_op *op_p;
int orig_log_level;
int i;
- unsigned long flags;
- spin_lock_irqsave(&sysrq_key_table_lock, flags);
+ rcu_sysrq_start();
+ rcu_read_lock();
/*
* Raise the apparent loglevel to maximum so that the sysrq header
* is shown to provide the user with positive feedback. We do not
@@ -554,7 +555,8 @@ void __handle_sysrq(int key, bool check_mask)
printk("\n");
console_loglevel = orig_log_level;
}
- spin_unlock_irqrestore(&sysrq_key_table_lock, flags);
+ rcu_read_unlock();
+ rcu_sysrq_end();
}
void handle_sysrq(int key)
@@ -1043,16 +1045,23 @@ static int __sysrq_swap_key_ops(int key, struct sysrq_key_op *insert_op_p,
struct sysrq_key_op *remove_op_p)
{
int retval;
- unsigned long flags;
- spin_lock_irqsave(&sysrq_key_table_lock, flags);
+ spin_lock(&sysrq_key_table_lock);
if (__sysrq_get_key_op(key) == remove_op_p) {
__sysrq_put_key_op(key, insert_op_p);
retval = 0;
} else {
retval = -1;
}
- spin_unlock_irqrestore(&sysrq_key_table_lock, flags);
+ spin_unlock(&sysrq_key_table_lock);
+
+ /*
+ * A concurrent __handle_sysrq either got the old op or the new op.
+ * Wait for it to go away before returning, so the code for an old
+ * op is not freed (eg. on module unload) while it is in use.
+ */
+ synchronize_rcu();
+
return retval;
}
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index 25b23b1e7f22..9bca88159725 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -1,3 +1,9 @@
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/buffer_head.h>
@@ -206,7 +212,7 @@ affs_set_blocksize(struct super_block *sb, int size)
static inline struct buffer_head *
affs_bread(struct super_block *sb, int block)
{
- pr_debug("affs_bread: %d\n", block);
+ pr_debug("%s: %d\n", __func__, block);
if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size)
return sb_bread(sb, block);
return NULL;
@@ -214,7 +220,7 @@ affs_bread(struct super_block *sb, int block)
static inline struct buffer_head *
affs_getblk(struct super_block *sb, int block)
{
- pr_debug("affs_getblk: %d\n", block);
+ pr_debug("%s: %d\n", __func__, block);
if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size)
return sb_getblk(sb, block);
return NULL;
@@ -223,7 +229,7 @@ static inline struct buffer_head *
affs_getzeroblk(struct super_block *sb, int block)
{
struct buffer_head *bh;
- pr_debug("affs_getzeroblk: %d\n", block);
+ pr_debug("%s: %d\n", __func__, block);
if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size) {
bh = sb_getblk(sb, block);
lock_buffer(bh);
@@ -238,7 +244,7 @@ static inline struct buffer_head *
affs_getemptyblk(struct super_block *sb, int block)
{
struct buffer_head *bh;
- pr_debug("affs_getemptyblk: %d\n", block);
+ pr_debug("%s: %d\n", __func__, block);
if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size) {
bh = sb_getblk(sb, block);
wait_on_buffer(bh);
@@ -251,7 +257,7 @@ static inline void
affs_brelse(struct buffer_head *bh)
{
if (bh)
- pr_debug("affs_brelse: %lld\n", (long long) bh->b_blocknr);
+ pr_debug("%s: %lld\n", __func__, (long long) bh->b_blocknr);
brelse(bh);
}
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 533a322c41c0..406b29836b19 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -34,7 +34,7 @@ affs_insert_hash(struct inode *dir, struct buffer_head *bh)
ino = bh->b_blocknr;
offset = affs_hash_name(sb, AFFS_TAIL(sb, bh)->name + 1, AFFS_TAIL(sb, bh)->name[0]);
- pr_debug("AFFS: insert_hash(dir=%u, ino=%d)\n", (u32)dir->i_ino, ino);
+ pr_debug("%s(dir=%u, ino=%d)\n", __func__, (u32)dir->i_ino, ino);
dir_bh = affs_bread(sb, dir->i_ino);
if (!dir_bh)
@@ -84,7 +84,8 @@ affs_remove_hash(struct inode *dir, struct buffer_head *rem_bh)
sb = dir->i_sb;
rem_ino = rem_bh->b_blocknr;
offset = affs_hash_name(sb, AFFS_TAIL(sb, rem_bh)->name+1, AFFS_TAIL(sb, rem_bh)->name[0]);
- pr_debug("AFFS: remove_hash(dir=%d, ino=%d, hashval=%d)\n", (u32)dir->i_ino, rem_ino, offset);
+ pr_debug("%s(dir=%d, ino=%d, hashval=%d)\n",
+ __func__, (u32)dir->i_ino, rem_ino, offset);
bh = affs_bread(sb, dir->i_ino);
if (!bh)
@@ -147,7 +148,7 @@ affs_remove_link(struct dentry *dentry)
u32 link_ino, ino;
int retval;
- pr_debug("AFFS: remove_link(key=%ld)\n", inode->i_ino);
+ pr_debug("%s(key=%ld)\n", __func__, inode->i_ino);
retval = -EIO;
bh = affs_bread(sb, inode->i_ino);
if (!bh)
@@ -279,7 +280,7 @@ affs_remove_header(struct dentry *dentry)
if (!inode)
goto done;
- pr_debug("AFFS: remove_header(key=%ld)\n", inode->i_ino);
+ pr_debug("%s(key=%ld)\n", __func__, inode->i_ino);
retval = -EIO;
bh = affs_bread(sb, (u32)(long)dentry->d_fsdata);
if (!bh)
@@ -451,10 +452,10 @@ affs_error(struct super_block *sb, const char *function, const char *fmt, ...)
vsnprintf(ErrorBuffer,sizeof(ErrorBuffer),fmt,args);
va_end(args);
- printk(KERN_CRIT "AFFS error (device %s): %s(): %s\n", sb->s_id,
+ pr_crit("error (device %s): %s(): %s\n", sb->s_id,
function,ErrorBuffer);
if (!(sb->s_flags & MS_RDONLY))
- printk(KERN_WARNING "AFFS: Remounting filesystem read-only\n");
+ pr_warn("Remounting filesystem read-only\n");
sb->s_flags |= MS_RDONLY;
}
@@ -467,7 +468,7 @@ affs_warning(struct super_block *sb, const char *function, const char *fmt, ...)
vsnprintf(ErrorBuffer,sizeof(ErrorBuffer),fmt,args);
va_end(args);
- printk(KERN_WARNING "AFFS warning (device %s): %s(): %s\n", sb->s_id,
+ pr_warn("(device %s): %s(): %s\n", sb->s_id,
function,ErrorBuffer);
}
diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c
index a32246b8359e..c8de51185c23 100644
--- a/fs/affs/bitmap.c
+++ b/fs/affs/bitmap.c
@@ -17,7 +17,7 @@ affs_count_free_blocks(struct super_block *sb)
u32 free;
int i;
- pr_debug("AFFS: count_free_blocks()\n");
+ pr_debug("%s()\n", __func__);
if (sb->s_flags & MS_RDONLY)
return 0;
@@ -43,7 +43,7 @@ affs_free_block(struct super_block *sb, u32 block)
u32 blk, bmap, bit, mask, tmp;
__be32 *data;
- pr_debug("AFFS: free_block(%u)\n", block);
+ pr_debug("%s(%u)\n", __func__, block);
if (block > sbi->s_partition_size)
goto err_range;
@@ -125,7 +125,7 @@ affs_alloc_block(struct inode *inode, u32 goal)
sb = inode->i_sb;
sbi = AFFS_SB(sb);
- pr_debug("AFFS: balloc(inode=%lu,goal=%u): ", inode->i_ino, goal);
+ pr_debug("balloc(inode=%lu,goal=%u): ", inode->i_ino, goal);
if (AFFS_I(inode)->i_pa_cnt) {
pr_debug("%d\n", AFFS_I(inode)->i_lastalloc+1);
@@ -254,8 +254,7 @@ int affs_init_bitmap(struct super_block *sb, int *flags)
return 0;
if (!AFFS_ROOT_TAIL(sb, sbi->s_root_bh)->bm_flag) {
- printk(KERN_NOTICE "AFFS: Bitmap invalid - mounting %s read only\n",
- sb->s_id);
+ pr_notice("Bitmap invalid - mounting %s read only\n", sb->s_id);
*flags |= MS_RDONLY;
return 0;
}
@@ -268,7 +267,7 @@ int affs_init_bitmap(struct super_block *sb, int *flags)
size = sbi->s_bmap_count * sizeof(*bm);
bm = sbi->s_bitmap = kzalloc(size, GFP_KERNEL);
if (!sbi->s_bitmap) {
- printk(KERN_ERR "AFFS: Bitmap allocation failed\n");
+ pr_err("Bitmap allocation failed\n");
return -ENOMEM;
}
@@ -282,17 +281,17 @@ int affs_init_bitmap(struct super_block *sb, int *flags)
bm->bm_key = be32_to_cpu(bmap_blk[blk]);
bh = affs_bread(sb, bm->bm_key);
if (!bh) {
- printk(KERN_ERR "AFFS: Cannot read bitmap\n");
+ pr_err("Cannot read bitmap\n");
res = -EIO;
goto out;
}
if (affs_checksum_block(sb, bh)) {
- printk(KERN_WARNING "AFFS: Bitmap %u invalid - mounting %s read only.\n",
- bm->bm_key, sb->s_id);
+ pr_warn("Bitmap %u invalid - mounting %s read only.\n",
+ bm->bm_key, sb->s_id);
*flags |= MS_RDONLY;
goto out;
}
- pr_debug("AFFS: read bitmap block %d: %d\n", blk, bm->bm_key);
+ pr_debug("read bitmap block %d: %d\n", blk, bm->bm_key);
bm->bm_free = memweight(bh->b_data + 4, sb->s_blocksize - 4);
/* Don't try read the extension if this is the last block,
@@ -304,7 +303,7 @@ int affs_init_bitmap(struct super_block *sb, int *flags)
affs_brelse(bmap_bh);
bmap_bh = affs_bread(sb, be32_to_cpu(bmap_blk[blk]));
if (!bmap_bh) {
- printk(KERN_ERR "AFFS: Cannot read bitmap extension\n");
+ pr_err("Cannot read bitmap extension\n");
res = -EIO;
goto out;
}
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index cbbda476a805..59f07bec92a6 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -54,8 +54,8 @@ affs_readdir(struct file *file, struct dir_context *ctx)
u32 ino;
int error = 0;
- pr_debug("AFFS: readdir(ino=%lu,f_pos=%lx)\n",
- inode->i_ino, (unsigned long)ctx->pos);
+ pr_debug("%s(ino=%lu,f_pos=%lx)\n",
+ __func__, inode->i_ino, (unsigned long)ctx->pos);
if (ctx->pos < 2) {
file->private_data = (void *)0;
@@ -81,7 +81,7 @@ affs_readdir(struct file *file, struct dir_context *ctx)
*/
ino = (u32)(long)file->private_data;
if (ino && file->f_version == inode->i_version) {
- pr_debug("AFFS: readdir() left off=%d\n", ino);
+ pr_debug("readdir() left off=%d\n", ino);
goto inside;
}
@@ -117,7 +117,7 @@ inside:
namelen = min(AFFS_TAIL(sb, fh_bh)->name[0], (u8)30);
name = AFFS_TAIL(sb, fh_bh)->name + 1;
- pr_debug("AFFS: readdir(): dir_emit(\"%.*s\", "
+ pr_debug("readdir(): dir_emit(\"%.*s\", "
"ino=%u), hash=%d, f_pos=%x\n",
namelen, name, ino, hash_pos, (u32)ctx->pos);
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 8669b6ecddee..0270303388ee 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -45,7 +45,7 @@ const struct inode_operations affs_file_inode_operations = {
static int
affs_file_open(struct inode *inode, struct file *filp)
{
- pr_debug("AFFS: open(%lu,%d)\n",
+ pr_debug("open(%lu,%d)\n",
inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt));
atomic_inc(&AFFS_I(inode)->i_opencnt);
return 0;
@@ -54,7 +54,7 @@ affs_file_open(struct inode *inode, struct file *filp)
static int
affs_file_release(struct inode *inode, struct file *filp)
{
- pr_debug("AFFS: release(%lu, %d)\n",
+ pr_debug("release(%lu, %d)\n",
inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt));
if (atomic_dec_and_test(&AFFS_I(inode)->i_opencnt)) {
@@ -324,7 +324,8 @@ affs_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_resul
struct buffer_head *ext_bh;
u32 ext;
- pr_debug("AFFS: get_block(%u, %lu)\n", (u32)inode->i_ino, (unsigned long)block);
+ pr_debug("%s(%u, %lu)\n",
+ __func__, (u32)inode->i_ino, (unsigned long)block);
BUG_ON(block > (sector_t)0x7fffffffUL);
@@ -498,34 +499,36 @@ affs_getemptyblk_ino(struct inode *inode, int block)
}
static int
-affs_do_readpage_ofs(struct file *file, struct page *page, unsigned from, unsigned to)
+affs_do_readpage_ofs(struct page *page, unsigned to)
{
struct inode *inode = page->mapping->host;
struct super_block *sb = inode->i_sb;
struct buffer_head *bh;
char *data;
+ unsigned pos = 0;
u32 bidx, boff, bsize;
u32 tmp;
- pr_debug("AFFS: read_page(%u, %ld, %d, %d)\n", (u32)inode->i_ino, page->index, from, to);
- BUG_ON(from > to || to > PAGE_CACHE_SIZE);
+ pr_debug("%s(%u, %ld, 0, %d)\n", __func__, (u32)inode->i_ino,
+ page->index, to);
+ BUG_ON(to > PAGE_CACHE_SIZE);
kmap(page);
data = page_address(page);
bsize = AFFS_SB(sb)->s_data_blksize;
- tmp = (page->index << PAGE_CACHE_SHIFT) + from;
+ tmp = page->index << PAGE_CACHE_SHIFT;
bidx = tmp / bsize;
boff = tmp % bsize;
- while (from < to) {
+ while (pos < to) {
bh = affs_bread_ino(inode, bidx, 0);
if (IS_ERR(bh))
return PTR_ERR(bh);
- tmp = min(bsize - boff, to - from);
- BUG_ON(from + tmp > to || tmp > bsize);
- memcpy(data + from, AFFS_DATA(bh) + boff, tmp);
+ tmp = min(bsize - boff, to - pos);
+ BUG_ON(pos + tmp > to || tmp > bsize);
+ memcpy(data + pos, AFFS_DATA(bh) + boff, tmp);
affs_brelse(bh);
bidx++;
- from += tmp;
+ pos += tmp;
boff = 0;
}
flush_dcache_page(page);
@@ -542,7 +545,7 @@ affs_extent_file_ofs(struct inode *inode, u32 newsize)
u32 size, bsize;
u32 tmp;
- pr_debug("AFFS: extent_file(%u, %d)\n", (u32)inode->i_ino, newsize);
+ pr_debug("%s(%u, %d)\n", __func__, (u32)inode->i_ino, newsize);
bsize = AFFS_SB(sb)->s_data_blksize;
bh = NULL;
size = AFFS_I(inode)->mmu_private;
@@ -608,14 +611,14 @@ affs_readpage_ofs(struct file *file, struct page *page)
u32 to;
int err;
- pr_debug("AFFS: read_page(%u, %ld)\n", (u32)inode->i_ino, page->index);
+ pr_debug("%s(%u, %ld)\n", __func__, (u32)inode->i_ino, page->index);
to = PAGE_CACHE_SIZE;
if (((page->index + 1) << PAGE_CACHE_SHIFT) > inode->i_size) {
to = inode->i_size & ~PAGE_CACHE_MASK;
memset(page_address(page) + to, 0, PAGE_CACHE_SIZE - to);
}
- err = affs_do_readpage_ofs(file, page, 0, to);
+ err = affs_do_readpage_ofs(page, to);
if (!err)
SetPageUptodate(page);
unlock_page(page);
@@ -631,7 +634,8 @@ static int affs_write_begin_ofs(struct file *file, struct address_space *mapping
pgoff_t index;
int err = 0;
- pr_debug("AFFS: write_begin(%u, %llu, %llu)\n", (u32)inode->i_ino, (unsigned long long)pos, (unsigned long long)pos + len);
+ pr_debug("%s(%u, %llu, %llu)\n", __func__, (u32)inode->i_ino,
+ (unsigned long long)pos, (unsigned long long)pos + len);
if (pos > AFFS_I(inode)->mmu_private) {
/* XXX: this probably leaves a too-big i_size in case of
* failure. Should really be updating i_size at write_end time
@@ -651,7 +655,7 @@ static int affs_write_begin_ofs(struct file *file, struct address_space *mapping
return 0;
/* XXX: inefficient but safe in the face of short writes */
- err = affs_do_readpage_ofs(file, page, 0, PAGE_CACHE_SIZE);
+ err = affs_do_readpage_ofs(page, PAGE_CACHE_SIZE);
if (err) {
unlock_page(page);
page_cache_release(page);
@@ -680,7 +684,9 @@ static int affs_write_end_ofs(struct file *file, struct address_space *mapping,
* due to write_begin.
*/
- pr_debug("AFFS: write_begin(%u, %llu, %llu)\n", (u32)inode->i_ino, (unsigned long long)pos, (unsigned long long)pos + len);
+ pr_debug("%s(%u, %llu, %llu)\n",
+ __func__, (u32)inode->i_ino, (unsigned long long)pos,
+ (unsigned long long)pos + len);
bsize = AFFS_SB(sb)->s_data_blksize;
data = page_address(page);
@@ -802,7 +808,7 @@ affs_free_prealloc(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
- pr_debug("AFFS: free_prealloc(ino=%lu)\n", inode->i_ino);
+ pr_debug("free_prealloc(ino=%lu)\n", inode->i_ino);
while (AFFS_I(inode)->i_pa_cnt) {
AFFS_I(inode)->i_pa_cnt--;
@@ -822,7 +828,7 @@ affs_truncate(struct inode *inode)
struct buffer_head *ext_bh;
int i;
- pr_debug("AFFS: truncate(inode=%d, oldsize=%u, newsize=%u)\n",
+ pr_debug("truncate(inode=%d, oldsize=%u, newsize=%u)\n",
(u32)inode->i_ino, (u32)AFFS_I(inode)->mmu_private, (u32)inode->i_size);
last_blk = 0;
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index 96df91e8c334..bec2d1a0c91c 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -34,7 +34,7 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
if (!(inode->i_state & I_NEW))
return inode;
- pr_debug("AFFS: affs_iget(%lu)\n", inode->i_ino);
+ pr_debug("affs_iget(%lu)\n", inode->i_ino);
block = inode->i_ino;
bh = affs_bread(sb, block);
@@ -175,7 +175,7 @@ affs_write_inode(struct inode *inode, struct writeback_control *wbc)
uid_t uid;
gid_t gid;
- pr_debug("AFFS: write_inode(%lu)\n",inode->i_ino);
+ pr_debug("write_inode(%lu)\n", inode->i_ino);
if (!inode->i_nlink)
// possibly free block
@@ -220,7 +220,7 @@ affs_notify_change(struct dentry *dentry, struct iattr *attr)
struct inode *inode = dentry->d_inode;
int error;
- pr_debug("AFFS: notify_change(%lu,0x%x)\n",inode->i_ino,attr->ia_valid);
+ pr_debug("notify_change(%lu,0x%x)\n", inode->i_ino, attr->ia_valid);
error = inode_change_ok(inode,attr);
if (error)
@@ -258,7 +258,8 @@ void
affs_evict_inode(struct inode *inode)
{
unsigned long cache_page;
- pr_debug("AFFS: evict_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
+ pr_debug("evict_inode(ino=%lu, nlink=%u)\n",
+ inode->i_ino, inode->i_nlink);
truncate_inode_pages_final(&inode->i_data);
if (!inode->i_nlink) {
@@ -271,7 +272,7 @@ affs_evict_inode(struct inode *inode)
affs_free_prealloc(inode);
cache_page = (unsigned long)AFFS_I(inode)->i_lc;
if (cache_page) {
- pr_debug("AFFS: freeing ext cache\n");
+ pr_debug("freeing ext cache\n");
AFFS_I(inode)->i_lc = NULL;
AFFS_I(inode)->i_ac = NULL;
free_page(cache_page);
@@ -350,7 +351,8 @@ affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s3
u32 block = 0;
int retval;
- pr_debug("AFFS: add_entry(dir=%u, inode=%u, \"%*s\", type=%d)\n", (u32)dir->i_ino,
+ pr_debug("%s(dir=%u, inode=%u, \"%*s\", type=%d)\n",
+ __func__, (u32)dir->i_ino,
(u32)inode->i_ino, (int)dentry->d_name.len, dentry->d_name.name, type);
retval = -EIO;
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index 6dae1ccd176d..035bd31556fc 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -190,7 +190,8 @@ affs_find_entry(struct inode *dir, struct dentry *dentry)
toupper_t toupper = affs_get_toupper(sb);
u32 key;
- pr_debug("AFFS: find_entry(\"%.*s\")\n", (int)dentry->d_name.len, dentry->d_name.name);
+ pr_debug("%s(\"%.*s\")\n",
+ __func__, (int)dentry->d_name.len, dentry->d_name.name);
bh = affs_bread(sb, dir->i_ino);
if (!bh)
@@ -218,7 +219,8 @@ affs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
struct buffer_head *bh;
struct inode *inode = NULL;
- pr_debug("AFFS: lookup(\"%.*s\")\n",(int)dentry->d_name.len,dentry->d_name.name);
+ pr_debug("%s(\"%.*s\")\n",
+ __func__, (int)dentry->d_name.len, dentry->d_name.name);
affs_lock_dir(dir);
bh = affs_find_entry(dir, dentry);
@@ -248,9 +250,9 @@ affs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
int
affs_unlink(struct inode *dir, struct dentry *dentry)
{
- pr_debug("AFFS: unlink(dir=%d, %lu \"%.*s\")\n", (u32)dir->i_ino,
- dentry->d_inode->i_ino,
- (int)dentry->d_name.len, dentry->d_name.name);
+ pr_debug("%s(dir=%d, %lu \"%.*s\")\n",
+ __func__, (u32)dir->i_ino, dentry->d_inode->i_ino,
+ (int)dentry->d_name.len, dentry->d_name.name);
return affs_remove_header(dentry);
}
@@ -262,7 +264,8 @@ affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
struct inode *inode;
int error;
- pr_debug("AFFS: create(%lu,\"%.*s\",0%ho)\n",dir->i_ino,(int)dentry->d_name.len,
+ pr_debug("%s(%lu,\"%.*s\",0%ho)\n",
+ __func__, dir->i_ino, (int)dentry->d_name.len,
dentry->d_name.name,mode);
inode = affs_new_inode(dir);
@@ -291,8 +294,9 @@ affs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
struct inode *inode;
int error;
- pr_debug("AFFS: mkdir(%lu,\"%.*s\",0%ho)\n",dir->i_ino,
- (int)dentry->d_name.len,dentry->d_name.name,mode);
+ pr_debug("%s(%lu,\"%.*s\",0%ho)\n",
+ __func__, dir->i_ino, (int)dentry->d_name.len,
+ dentry->d_name.name, mode);
inode = affs_new_inode(dir);
if (!inode)
@@ -317,8 +321,8 @@ affs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
int
affs_rmdir(struct inode *dir, struct dentry *dentry)
{
- pr_debug("AFFS: rmdir(dir=%u, %lu \"%.*s\")\n", (u32)dir->i_ino,
- dentry->d_inode->i_ino,
+ pr_debug("%s(dir=%u, %lu \"%.*s\")\n",
+ __func__, (u32)dir->i_ino, dentry->d_inode->i_ino,
(int)dentry->d_name.len, dentry->d_name.name);
return affs_remove_header(dentry);
@@ -334,8 +338,9 @@ affs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
int i, maxlen, error;
char c, lc;
- pr_debug("AFFS: symlink(%lu,\"%.*s\" -> \"%s\")\n",dir->i_ino,
- (int)dentry->d_name.len,dentry->d_name.name,symname);
+ pr_debug("%s(%lu,\"%.*s\" -> \"%s\")\n",
+ __func__, dir->i_ino, (int)dentry->d_name.len,
+ dentry->d_name.name, symname);
maxlen = AFFS_SB(sb)->s_hashsize * sizeof(u32) - 1;
inode = affs_new_inode(dir);
@@ -404,7 +409,8 @@ affs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
{
struct inode *inode = old_dentry->d_inode;
- pr_debug("AFFS: link(%u, %u, \"%.*s\")\n", (u32)inode->i_ino, (u32)dir->i_ino,
+ pr_debug("%s(%u, %u, \"%.*s\")\n",
+ __func__, (u32)inode->i_ino, (u32)dir->i_ino,
(int)dentry->d_name.len,dentry->d_name.name);
return affs_add_entry(dir, inode, dentry, ST_LINKFILE);
@@ -418,9 +424,10 @@ affs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct buffer_head *bh = NULL;
int retval;
- pr_debug("AFFS: rename(old=%u,\"%*s\" to new=%u,\"%*s\")\n",
- (u32)old_dir->i_ino, (int)old_dentry->d_name.len, old_dentry->d_name.name,
- (u32)new_dir->i_ino, (int)new_dentry->d_name.len, new_dentry->d_name.name);
+ pr_debug("%s(old=%u,\"%*s\" to new=%u,\"%*s\")\n",
+ __func__, (u32)old_dir->i_ino, (int)old_dentry->d_name.len,
+ old_dentry->d_name.name, (u32)new_dir->i_ino,
+ (int)new_dentry->d_name.len, new_dentry->d_name.name);
retval = affs_check_name(new_dentry->d_name.name,
new_dentry->d_name.len,
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 895ac7dc9dbf..51f1a95bff73 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -46,7 +46,7 @@ static void
affs_put_super(struct super_block *sb)
{
struct affs_sb_info *sbi = AFFS_SB(sb);
- pr_debug("AFFS: put_super()\n");
+ pr_debug("%s()\n", __func__);
cancel_delayed_work_sync(&sbi->sb_work);
}
@@ -220,7 +220,7 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
return 0;
if (n != 512 && n != 1024 && n != 2048
&& n != 4096) {
- printk ("AFFS: Invalid blocksize (512, 1024, 2048, 4096 allowed)\n");
+ pr_warn("Invalid blocksize (512, 1024, 2048, 4096 allowed)\n");
return 0;
}
*blocksize = n;
@@ -285,8 +285,8 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
/* Silently ignore the quota options */
break;
default:
- printk("AFFS: Unrecognized mount option \"%s\" "
- "or missing value\n", p);
+ pr_warn("Unrecognized mount option \"%s\" or missing value\n",
+ p);
return 0;
}
}
@@ -319,7 +319,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
save_mount_options(sb, data);
- pr_debug("AFFS: read_super(%s)\n",data ? (const char *)data : "no options");
+ pr_debug("read_super(%s)\n", data ? (const char *)data : "no options");
sb->s_magic = AFFS_SUPER_MAGIC;
sb->s_op = &affs_sops;
@@ -339,7 +339,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block,
&blocksize,&sbi->s_prefix,
sbi->s_volume, &mount_flags)) {
- printk(KERN_ERR "AFFS: Error parsing options\n");
+ pr_err("Error parsing options\n");
return -EINVAL;
}
/* N.B. after this point s_prefix must be released */
@@ -356,7 +356,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
*/
size = sb->s_bdev->bd_inode->i_size >> 9;
- pr_debug("AFFS: initial blocksize=%d, #blocks=%d\n", 512, size);
+ pr_debug("initial blocksize=%d, #blocks=%d\n", 512, size);
affs_set_blocksize(sb, PAGE_SIZE);
/* Try to find root block. Its location depends on the block size. */
@@ -371,7 +371,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_root_block = root_block;
if (root_block < 0)
sbi->s_root_block = (reserved + size - 1) / 2;
- pr_debug("AFFS: setting blocksize to %d\n", blocksize);
+ pr_debug("setting blocksize to %d\n", blocksize);
affs_set_blocksize(sb, blocksize);
sbi->s_partition_size = size;
@@ -386,7 +386,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
* block behind the calculated one. So we check this one, too.
*/
for (num_bm = 0; num_bm < 2; num_bm++) {
- pr_debug("AFFS: Dev %s, trying root=%u, bs=%d, "
+ pr_debug("Dev %s, trying root=%u, bs=%d, "
"size=%d, reserved=%d\n",
sb->s_id,
sbi->s_root_block + num_bm,
@@ -407,8 +407,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
}
}
if (!silent)
- printk(KERN_ERR "AFFS: No valid root block on device %s\n",
- sb->s_id);
+ pr_err("No valid root block on device %s\n", sb->s_id);
return -EINVAL;
/* N.B. after this point bh must be released */
@@ -420,7 +419,7 @@ got_root:
/* Find out which kind of FS we have */
boot_bh = sb_bread(sb, 0);
if (!boot_bh) {
- printk(KERN_ERR "AFFS: Cannot read boot block\n");
+ pr_err("Cannot read boot block\n");
return -EINVAL;
}
memcpy(sig, boot_bh->b_data, 4);
@@ -433,8 +432,7 @@ got_root:
*/
if ((chksum == FS_DCFFS || chksum == MUFS_DCFFS || chksum == FS_DCOFS
|| chksum == MUFS_DCOFS) && !(sb->s_flags & MS_RDONLY)) {
- printk(KERN_NOTICE "AFFS: Dircache FS - mounting %s read only\n",
- sb->s_id);
+ pr_notice("Dircache FS - mounting %s read only\n", sb->s_id);
sb->s_flags |= MS_RDONLY;
}
switch (chksum) {
@@ -468,14 +466,14 @@ got_root:
sb->s_flags |= MS_NOEXEC;
break;
default:
- printk(KERN_ERR "AFFS: Unknown filesystem on device %s: %08X\n",
- sb->s_id, chksum);
+ pr_err("Unknown filesystem on device %s: %08X\n",
+ sb->s_id, chksum);
return -EINVAL;
}
if (mount_flags & SF_VERBOSE) {
u8 len = AFFS_ROOT_TAIL(sb, root_bh)->disk_name[0];
- printk(KERN_NOTICE "AFFS: Mounting volume \"%.*s\": Type=%.3s\\%c, Blocksize=%d\n",
+ pr_notice("Mounting volume \"%.*s\": Type=%.3s\\%c, Blocksize=%d\n",
len > 31 ? 31 : len,
AFFS_ROOT_TAIL(sb, root_bh)->disk_name + 1,
sig, sig[3] + '0', blocksize);
@@ -506,11 +504,11 @@ got_root:
sb->s_root = d_make_root(root_inode);
if (!sb->s_root) {
- printk(KERN_ERR "AFFS: Get root inode failed\n");
+ pr_err("AFFS: Get root inode failed\n");
return -ENOMEM;
}
- pr_debug("AFFS: s_flags=%lX\n",sb->s_flags);
+ pr_debug("s_flags=%lX\n", sb->s_flags);
return 0;
}
@@ -530,7 +528,7 @@ affs_remount(struct super_block *sb, int *flags, char *data)
char volume[32];
char *prefix = NULL;
- pr_debug("AFFS: remount(flags=0x%x,opts=\"%s\")\n",*flags,data);
+ pr_debug("%s(flags=0x%x,opts=\"%s\")\n", __func__, *flags, data);
sync_filesystem(sb);
*flags |= MS_NODIRATIME;
@@ -578,8 +576,9 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf)
int free;
u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
- pr_debug("AFFS: statfs() partsize=%d, reserved=%d\n",AFFS_SB(sb)->s_partition_size,
- AFFS_SB(sb)->s_reserved);
+ pr_debug("%s() partsize=%d, reserved=%d\n",
+ __func__, AFFS_SB(sb)->s_partition_size,
+ AFFS_SB(sb)->s_reserved);
free = affs_count_free_blocks(sb);
buf->f_type = AFFS_SUPER_MAGIC;
diff --git a/fs/affs/symlink.c b/fs/affs/symlink.c
index ee00f08c4f53..f39b71c3981e 100644
--- a/fs/affs/symlink.c
+++ b/fs/affs/symlink.c
@@ -21,7 +21,7 @@ static int affs_symlink_readpage(struct file *file, struct page *page)
char c;
char lc;
- pr_debug("AFFS: follow_link(ino=%lu)\n",inode->i_ino);
+ pr_debug("follow_link(ino=%lu)\n", inode->i_ino);
err = -EIO;
bh = affs_bread(inode->i_sb, inode->i_ino);
diff --git a/fs/befs/btree.c b/fs/befs/btree.c
index a2cd305a993a..9c7faa8a9288 100644
--- a/fs/befs/btree.c
+++ b/fs/befs/btree.c
@@ -318,7 +318,7 @@ befs_btree_find(struct super_block *sb, befs_data_stream * ds,
* befs_find_key - Search for a key within a node
* @sb: Filesystem superblock
* @node: Node to find the key within
- * @key: Keystring to search for
+ * @findkey: Keystring to search for
* @value: If key is found, the value stored with the key is put here
*
* finds exact match if one exists, and returns BEFS_BT_MATCH
@@ -405,7 +405,7 @@ befs_find_key(struct super_block *sb, befs_btree_node * node,
* Heres how it works: Key_no is the index of the key/value pair to
* return in keybuf/value.
* Bufsize is the size of keybuf (BEFS_NAME_LEN+1 is a good size). Keysize is
- * the number of charecters in the key (just a convenience).
+ * the number of characters in the key (just a convenience).
*
* Algorithm:
* Get the first leafnode of the tree. See if the requested key is in that
@@ -502,12 +502,11 @@ befs_btree_read(struct super_block *sb, befs_data_stream * ds,
"for key of size %d", __func__, bufsize, keylen);
brelse(this_node->bh);
goto error_alloc;
- };
+ }
- strncpy(keybuf, keystart, keylen);
+ strlcpy(keybuf, keystart, keylen + 1);
*value = fs64_to_cpu(sb, valarray[cur_key]);
*keysize = keylen;
- keybuf[keylen] = '\0';
befs_debug(sb, "Read [%llu,%d]: Key \"%.*s\", Value %llu", node_off,
cur_key, keylen, keybuf, *value);
@@ -707,7 +706,7 @@ befs_bt_get_key(struct super_block *sb, befs_btree_node * node,
* @key1: pointer to the first key to be compared
* @keylen1: length in bytes of key1
* @key2: pointer to the second key to be compared
- * @kelen2: length in bytes of key2
+ * @keylen2: length in bytes of key2
*
* Returns 0 if @key1 and @key2 are equal.
* Returns >0 if @key1 is greater.
diff --git a/fs/befs/datastream.c b/fs/befs/datastream.c
index c467bebd50af..1e8e0b8d8836 100644
--- a/fs/befs/datastream.c
+++ b/fs/befs/datastream.c
@@ -116,7 +116,7 @@ befs_fblock2brun(struct super_block *sb, befs_data_stream * data,
* befs_read_lsmylink - read long symlink from datastream.
* @sb: Filesystem superblock
* @ds: Datastrem to read from
- * @buf: Buffer in which to place long symlink data
+ * @buff: Buffer in which to place long symlink data
* @len: Length of the long symlink in bytes
*
* Returns the number of bytes read
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index d626756ff721..a16fbd4e8241 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -133,14 +133,6 @@ befs_get_block(struct inode *inode, sector_t block,
befs_debug(sb, "---> befs_get_block() for inode %lu, block %ld",
(unsigned long)inode->i_ino, (long)block);
-
- if (block < 0) {
- befs_error(sb, "befs_get_block() was asked for a block "
- "number less than zero: block %ld in inode %lu",
- (long)block, (unsigned long)inode->i_ino);
- return -EIO;
- }
-
if (create) {
befs_error(sb, "befs_get_block() was asked to write to "
"block %ld in inode %lu", (long)block,
@@ -396,9 +388,8 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
if (S_ISLNK(inode->i_mode) && !(befs_ino->i_flags & BEFS_LONG_SYMLINK)){
inode->i_size = 0;
inode->i_blocks = befs_sb->block_size / VFS_BLOCK_SIZE;
- strncpy(befs_ino->i_data.symlink, raw_inode->data.symlink,
- BEFS_SYMLINK_LEN - 1);
- befs_ino->i_data.symlink[BEFS_SYMLINK_LEN - 1] = '\0';
+ strlcpy(befs_ino->i_data.symlink, raw_inode->data.symlink,
+ BEFS_SYMLINK_LEN);
} else {
int num_blks;
@@ -591,21 +582,21 @@ befs_utf2nls(struct super_block *sb, const char *in,
/**
* befs_nls2utf - Convert NLS string to utf8 encodeing
* @sb: Superblock
- * @src: Input string buffer in NLS format
- * @srclen: Length of input string in bytes
- * @dest: The output string in UTF-8 format
- * @destlen: Length of the output buffer
+ * @in: Input string buffer in NLS format
+ * @in_len: Length of input string in bytes
+ * @out: The output string in UTF-8 format
+ * @out_len: Length of the output buffer
*
- * Converts input string @src, which is in the format of the loaded NLS map,
+ * Converts input string @in, which is in the format of the loaded NLS map,
* into a utf8 string.
*
- * The destination string @dest is allocated by this function and the caller is
+ * The destination string @out is allocated by this function and the caller is
* responsible for freeing it with kfree()
*
- * On return, *@destlen is the length of @dest in bytes.
+ * On return, *@out_len is the length of @out in bytes.
*
* On success, the return value is the number of utf8 characters written to
- * the output buffer @dest.
+ * the output buffer @out.
*
* On Failure, a negative number coresponding to the error code is returned.
*/
diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index 5b99bafc31d1..d749731dc0ee 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -50,18 +50,18 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
cache->brun_percent < 100);
if (*args) {
- kerror("'bind' command doesn't take an argument");
+ pr_err("'bind' command doesn't take an argument");
return -EINVAL;
}
if (!cache->rootdirname) {
- kerror("No cache directory specified");
+ pr_err("No cache directory specified");
return -EINVAL;
}
/* don't permit already bound caches to be re-bound */
if (test_bit(CACHEFILES_READY, &cache->flags)) {
- kerror("Cache already bound");
+ pr_err("Cache already bound");
return -EBUSY;
}
@@ -228,9 +228,7 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache)
set_bit(CACHEFILES_READY, &cache->flags);
dput(root);
- printk(KERN_INFO "CacheFiles:"
- " File cache on %s registered\n",
- cache->cache.identifier);
+ pr_info("File cache on %s registered\n", cache->cache.identifier);
/* check how much space the cache has */
cachefiles_has_space(cache, 0, 0);
@@ -250,7 +248,7 @@ error_open_root:
kmem_cache_free(cachefiles_object_jar, fsdef);
error_root_object:
cachefiles_end_secure(cache, saved_cred);
- kerror("Failed to register: %d", ret);
+ pr_err("Failed to register: %d", ret);
return ret;
}
@@ -262,9 +260,8 @@ void cachefiles_daemon_unbind(struct cachefiles_cache *cache)
_enter("");
if (test_bit(CACHEFILES_READY, &cache->flags)) {
- printk(KERN_INFO "CacheFiles:"
- " File cache on %s unregistering\n",
- cache->cache.identifier);
+ pr_info("File cache on %s unregistering\n",
+ cache->cache.identifier);
fscache_withdraw_cache(&cache->cache);
}
diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
index 0a1467b15516..b078d3081d6c 100644
--- a/fs/cachefiles/daemon.c
+++ b/fs/cachefiles/daemon.c
@@ -315,8 +315,7 @@ static unsigned int cachefiles_daemon_poll(struct file *file,
static int cachefiles_daemon_range_error(struct cachefiles_cache *cache,
char *args)
{
- kerror("Free space limits must be in range"
- " 0%%<=stop<cull<run<100%%");
+ pr_err("Free space limits must be in range 0%%<=stop<cull<run<100%%");
return -EINVAL;
}
@@ -476,12 +475,12 @@ static int cachefiles_daemon_dir(struct cachefiles_cache *cache, char *args)
_enter(",%s", args);
if (!*args) {
- kerror("Empty directory specified");
+ pr_err("Empty directory specified");
return -EINVAL;
}
if (cache->rootdirname) {
- kerror("Second cache directory specified");
+ pr_err("Second cache directory specified");
return -EEXIST;
}
@@ -504,12 +503,12 @@ static int cachefiles_daemon_secctx(struct cachefiles_cache *cache, char *args)
_enter(",%s", args);
if (!*args) {
- kerror("Empty security context specified");
+ pr_err("Empty security context specified");
return -EINVAL;
}
if (cache->secctx) {
- kerror("Second security context specified");
+ pr_err("Second security context specified");
return -EINVAL;
}
@@ -532,7 +531,7 @@ static int cachefiles_daemon_tag(struct cachefiles_cache *cache, char *args)
_enter(",%s", args);
if (!*args) {
- kerror("Empty tag specified");
+ pr_err("Empty tag specified");
return -EINVAL;
}
@@ -563,12 +562,12 @@ static int cachefiles_daemon_cull(struct cachefiles_cache *cache, char *args)
goto inval;
if (!test_bit(CACHEFILES_READY, &cache->flags)) {
- kerror("cull applied to unready cache");
+ pr_err("cull applied to unready cache");
return -EIO;
}
if (test_bit(CACHEFILES_DEAD, &cache->flags)) {
- kerror("cull applied to dead cache");
+ pr_err("cull applied to dead cache");
return -EIO;
}
@@ -588,11 +587,11 @@ static int cachefiles_daemon_cull(struct cachefiles_cache *cache, char *args)
notdir:
path_put(&path);
- kerror("cull command requires dirfd to be a directory");
+ pr_err("cull command requires dirfd to be a directory");
return -ENOTDIR;
inval:
- kerror("cull command requires dirfd and filename");
+ pr_err("cull command requires dirfd and filename");
return -EINVAL;
}
@@ -615,7 +614,7 @@ static int cachefiles_daemon_debug(struct cachefiles_cache *cache, char *args)
return 0;
inval:
- kerror("debug command requires mask");
+ pr_err("debug command requires mask");
return -EINVAL;
}
@@ -635,12 +634,12 @@ static int cachefiles_daemon_inuse(struct cachefiles_cache *cache, char *args)
goto inval;
if (!test_bit(CACHEFILES_READY, &cache->flags)) {
- kerror("inuse applied to unready cache");
+ pr_err("inuse applied to unready cache");
return -EIO;
}
if (test_bit(CACHEFILES_DEAD, &cache->flags)) {
- kerror("inuse applied to dead cache");
+ pr_err("inuse applied to dead cache");
return -EIO;
}
@@ -660,11 +659,11 @@ static int cachefiles_daemon_inuse(struct cachefiles_cache *cache, char *args)
notdir:
path_put(&path);
- kerror("inuse command requires dirfd to be a directory");
+ pr_err("inuse command requires dirfd to be a directory");
return -ENOTDIR;
inval:
- kerror("inuse command requires dirfd and filename");
+ pr_err("inuse command requires dirfd and filename");
return -EINVAL;
}
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 57e17fe6121a..584743d456c3 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -146,8 +146,7 @@ static int cachefiles_lookup_object(struct fscache_object *_object)
if (ret < 0 && ret != -ETIMEDOUT) {
if (ret != -ENOBUFS)
- printk(KERN_WARNING
- "CacheFiles: Lookup failed error %d\n", ret);
+ pr_warn("Lookup failed error %d\n", ret);
fscache_object_lookup_error(&object->fscache);
}
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 5349473df1b1..3d50998abf57 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -9,6 +9,13 @@
* 2 of the Licence, or (at your option) any later version.
*/
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) "CacheFiles: " fmt
+
+
#include <linux/fscache-cache.h>
#include <linux/timer.h>
#include <linux/wait.h>
@@ -245,11 +252,10 @@ extern int cachefiles_remove_object_xattr(struct cachefiles_cache *cache,
/*
* error handling
*/
-#define kerror(FMT, ...) printk(KERN_ERR "CacheFiles: "FMT"\n", ##__VA_ARGS__)
#define cachefiles_io_error(___cache, FMT, ...) \
do { \
- kerror("I/O Error: " FMT, ##__VA_ARGS__); \
+ pr_err("I/O Error: " FMT, ##__VA_ARGS__); \
fscache_io_error(&(___cache)->cache); \
set_bit(CACHEFILES_DEAD, &(___cache)->flags); \
} while (0)
@@ -310,8 +316,8 @@ do { \
#define ASSERT(X) \
do { \
if (unlikely(!(X))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "CacheFiles: Assertion failed\n"); \
+ pr_err("\n"); \
+ pr_err("Assertion failed\n"); \
BUG(); \
} \
} while (0)
@@ -319,9 +325,9 @@ do { \
#define ASSERTCMP(X, OP, Y) \
do { \
if (unlikely(!((X) OP (Y)))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "CacheFiles: Assertion failed\n"); \
- printk(KERN_ERR "%lx " #OP " %lx is false\n", \
+ pr_err("\n"); \
+ pr_err("Assertion failed\n"); \
+ pr_err("%lx " #OP " %lx is false\n", \
(unsigned long)(X), (unsigned long)(Y)); \
BUG(); \
} \
@@ -330,8 +336,8 @@ do { \
#define ASSERTIF(C, X) \
do { \
if (unlikely((C) && !(X))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "CacheFiles: Assertion failed\n"); \
+ pr_err("\n"); \
+ pr_err("Assertion failed\n"); \
BUG(); \
} \
} while (0)
@@ -339,9 +345,9 @@ do { \
#define ASSERTIFCMP(C, X, OP, Y) \
do { \
if (unlikely((C) && !((X) OP (Y)))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "CacheFiles: Assertion failed\n"); \
- printk(KERN_ERR "%lx " #OP " %lx is false\n", \
+ pr_err("\n"); \
+ pr_err("Assertion failed\n"); \
+ pr_err("%lx " #OP " %lx is false\n", \
(unsigned long)(X), (unsigned long)(Y)); \
BUG(); \
} \
diff --git a/fs/cachefiles/main.c b/fs/cachefiles/main.c
index 4bfa8cf43bf5..180edfb45f66 100644
--- a/fs/cachefiles/main.c
+++ b/fs/cachefiles/main.c
@@ -68,8 +68,7 @@ static int __init cachefiles_init(void)
SLAB_HWCACHE_ALIGN,
cachefiles_object_init_once);
if (!cachefiles_object_jar) {
- printk(KERN_NOTICE
- "CacheFiles: Failed to allocate an object jar\n");
+ pr_notice("Failed to allocate an object jar\n");
goto error_object_jar;
}
@@ -77,7 +76,7 @@ static int __init cachefiles_init(void)
if (ret < 0)
goto error_proc;
- printk(KERN_INFO "CacheFiles: Loaded\n");
+ pr_info("Loaded\n");
return 0;
error_proc:
@@ -85,7 +84,7 @@ error_proc:
error_object_jar:
misc_deregister(&cachefiles_dev);
error_dev:
- kerror("failed to register: %d", ret);
+ pr_err("failed to register: %d", ret);
return ret;
}
@@ -96,7 +95,7 @@ fs_initcall(cachefiles_init);
*/
static void __exit cachefiles_exit(void)
{
- printk(KERN_INFO "CacheFiles: Unloading\n");
+ pr_info("Unloading\n");
cachefiles_proc_cleanup();
kmem_cache_destroy(cachefiles_object_jar);
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index c0a681705104..5bf2b41e66d3 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -35,22 +35,21 @@ void __cachefiles_printk_object(struct cachefiles_object *object,
struct fscache_cookie *cookie;
unsigned keylen, loop;
- printk(KERN_ERR "%sobject: OBJ%x\n",
- prefix, object->fscache.debug_id);
- printk(KERN_ERR "%sobjstate=%s fl=%lx wbusy=%x ev=%lx[%lx]\n",
+ pr_err("%sobject: OBJ%x\n", prefix, object->fscache.debug_id);
+ pr_err("%sobjstate=%s fl=%lx wbusy=%x ev=%lx[%lx]\n",
prefix, object->fscache.state->name,
object->fscache.flags, work_busy(&object->fscache.work),
object->fscache.events, object->fscache.event_mask);
- printk(KERN_ERR "%sops=%u inp=%u exc=%u\n",
+ pr_err("%sops=%u inp=%u exc=%u\n",
prefix, object->fscache.n_ops, object->fscache.n_in_progress,
object->fscache.n_exclusive);
- printk(KERN_ERR "%sparent=%p\n",
+ pr_err("%sparent=%p\n",
prefix, object->fscache.parent);
spin_lock(&object->fscache.lock);
cookie = object->fscache.cookie;
if (cookie) {
- printk(KERN_ERR "%scookie=%p [pr=%p nd=%p fl=%lx]\n",
+ pr_err("%scookie=%p [pr=%p nd=%p fl=%lx]\n",
prefix,
object->fscache.cookie,
object->fscache.cookie->parent,
@@ -62,16 +61,16 @@ void __cachefiles_printk_object(struct cachefiles_object *object,
else
keylen = 0;
} else {
- printk(KERN_ERR "%scookie=NULL\n", prefix);
+ pr_err("%scookie=NULL\n", prefix);
keylen = 0;
}
spin_unlock(&object->fscache.lock);
if (keylen) {
- printk(KERN_ERR "%skey=[%u] '", prefix, keylen);
+ pr_err("%skey=[%u] '", prefix, keylen);
for (loop = 0; loop < keylen; loop++)
- printk("%02x", keybuf[loop]);
- printk("'\n");
+ pr_cont("%02x", keybuf[loop]);
+ pr_cont("'\n");
}
}
@@ -131,13 +130,11 @@ found_dentry:
dentry);
if (fscache_object_is_live(&object->fscache)) {
- printk(KERN_ERR "\n");
- printk(KERN_ERR "CacheFiles: Error:"
- " Can't preemptively bury live object\n");
+ pr_err("\n");
+ pr_err("Error: Can't preemptively bury live object\n");
cachefiles_printk_object(object, NULL);
} else if (test_and_set_bit(CACHEFILES_OBJECT_BURIED, &object->flags)) {
- printk(KERN_ERR "CacheFiles: Error:"
- " Object already preemptively buried\n");
+ pr_err("Error: Object already preemptively buried\n");
}
write_unlock(&cache->active_lock);
@@ -160,7 +157,7 @@ try_again:
write_lock(&cache->active_lock);
if (test_and_set_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags)) {
- printk(KERN_ERR "CacheFiles: Error: Object already active\n");
+ pr_err("Error: Object already active\n");
cachefiles_printk_object(object, NULL);
BUG();
}
@@ -193,9 +190,8 @@ try_again:
* need to wait for it to be destroyed */
wait_for_old_object:
if (fscache_object_is_live(&object->fscache)) {
- printk(KERN_ERR "\n");
- printk(KERN_ERR "CacheFiles: Error:"
- " Unexpected object collision\n");
+ pr_err("\n");
+ pr_err("Error: Unexpected object collision\n");
cachefiles_printk_object(object, xobject);
BUG();
}
@@ -241,9 +237,8 @@ wait_for_old_object:
}
if (timeout <= 0) {
- printk(KERN_ERR "\n");
- printk(KERN_ERR "CacheFiles: Error: Overlong"
- " wait for old active object to go away\n");
+ pr_err("\n");
+ pr_err("Error: Overlong wait for old active object to go away\n");
cachefiles_printk_object(object, xobject);
goto requeue;
}
@@ -548,7 +543,7 @@ lookup_again:
next, next->d_inode, next->d_inode->i_ino);
} else if (!S_ISDIR(next->d_inode->i_mode)) {
- kerror("inode %lu is not a directory",
+ pr_err("inode %lu is not a directory",
next->d_inode->i_ino);
ret = -ENOBUFS;
goto error;
@@ -579,7 +574,7 @@ lookup_again:
} else if (!S_ISDIR(next->d_inode->i_mode) &&
!S_ISREG(next->d_inode->i_mode)
) {
- kerror("inode %lu is not a file or directory",
+ pr_err("inode %lu is not a file or directory",
next->d_inode->i_ino);
ret = -ENOBUFS;
goto error;
@@ -773,7 +768,7 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache,
ASSERT(subdir->d_inode);
if (!S_ISDIR(subdir->d_inode->i_mode)) {
- kerror("%s is not a directory", dirname);
+ pr_err("%s is not a directory", dirname);
ret = -EIO;
goto check_error;
}
@@ -800,13 +795,13 @@ check_error:
mkdir_error:
mutex_unlock(&dir->d_inode->i_mutex);
dput(subdir);
- kerror("mkdir %s failed with error %d", dirname, ret);
+ pr_err("mkdir %s failed with error %d", dirname, ret);
return ERR_PTR(ret);
lookup_error:
mutex_unlock(&dir->d_inode->i_mutex);
ret = PTR_ERR(subdir);
- kerror("Lookup %s failed with error %d", dirname, ret);
+ pr_err("Lookup %s failed with error %d", dirname, ret);
return ERR_PTR(ret);
nomem_d_alloc:
@@ -896,7 +891,7 @@ lookup_error:
if (ret == -EIO) {
cachefiles_io_error(cache, "Lookup failed");
} else if (ret != -ENOMEM) {
- kerror("Internal error: %d", ret);
+ pr_err("Internal error: %d", ret);
ret = -EIO;
}
@@ -955,7 +950,7 @@ error:
}
if (ret != -ENOMEM) {
- kerror("Internal error: %d", ret);
+ pr_err("Internal error: %d", ret);
ret = -EIO;
}
diff --git a/fs/cachefiles/security.c b/fs/cachefiles/security.c
index 039b5011d83b..396c18ea2764 100644
--- a/fs/cachefiles/security.c
+++ b/fs/cachefiles/security.c
@@ -34,9 +34,7 @@ int cachefiles_get_security_ID(struct cachefiles_cache *cache)
ret = set_security_override_from_ctx(new, cache->secctx);
if (ret < 0) {
put_cred(new);
- printk(KERN_ERR "CacheFiles:"
- " Security denies permission to nominate"
- " security context: error %d\n",
+ pr_err("Security denies permission to nominate security context: error %d\n",
ret);
goto error;
}
@@ -59,16 +57,14 @@ static int cachefiles_check_cache_dir(struct cachefiles_cache *cache,
ret = security_inode_mkdir(root->d_inode, root, 0);
if (ret < 0) {
- printk(KERN_ERR "CacheFiles:"
- " Security denies permission to make dirs: error %d",
+ pr_err("Security denies permission to make dirs: error %d",
ret);
return ret;
}
ret = security_inode_create(root->d_inode, root, 0);
if (ret < 0)
- printk(KERN_ERR "CacheFiles:"
- " Security denies permission to create files: error %d",
+ pr_err("Security denies permission to create files: error %d",
ret);
return ret;
diff --git a/fs/cachefiles/xattr.c b/fs/cachefiles/xattr.c
index 12b0eef84183..1ad51ffbb275 100644
--- a/fs/cachefiles/xattr.c
+++ b/fs/cachefiles/xattr.c
@@ -51,7 +51,7 @@ int cachefiles_check_object_type(struct cachefiles_object *object)
}
if (ret != -EEXIST) {
- kerror("Can't set xattr on %*.*s [%lu] (err %d)",
+ pr_err("Can't set xattr on %*.*s [%lu] (err %d)",
dentry->d_name.len, dentry->d_name.len,
dentry->d_name.name, dentry->d_inode->i_ino,
-ret);
@@ -64,7 +64,7 @@ int cachefiles_check_object_type(struct cachefiles_object *object)
if (ret == -ERANGE)
goto bad_type_length;
- kerror("Can't read xattr on %*.*s [%lu] (err %d)",
+ pr_err("Can't read xattr on %*.*s [%lu] (err %d)",
dentry->d_name.len, dentry->d_name.len,
dentry->d_name.name, dentry->d_inode->i_ino,
-ret);
@@ -85,14 +85,14 @@ error:
return ret;
bad_type_length:
- kerror("Cache object %lu type xattr length incorrect",
+ pr_err("Cache object %lu type xattr length incorrect",
dentry->d_inode->i_ino);
ret = -EIO;
goto error;
bad_type:
xtype[2] = 0;
- kerror("Cache object %*.*s [%lu] type %s not %s",
+ pr_err("Cache object %*.*s [%lu] type %s not %s",
dentry->d_name.len, dentry->d_name.len,
dentry->d_name.name, dentry->d_inode->i_ino,
xtype, type);
@@ -293,7 +293,7 @@ error:
return ret;
bad_type_length:
- kerror("Cache object %lu xattr length incorrect",
+ pr_err("Cache object %lu xattr length incorrect",
dentry->d_inode->i_ino);
ret = -EIO;
goto error;
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index b53278c9fd97..65a30e817dd8 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -694,7 +694,7 @@ static int ceph_writepages_start(struct address_space *mapping,
(wbc->sync_mode == WB_SYNC_ALL ? "ALL" : "HOLD"));
if (fsc->mount_state == CEPH_MOUNT_SHUTDOWN) {
- pr_warning("writepage_start %p on forced umount\n", inode);
+ pr_warn("writepage_start %p on forced umount\n", inode);
return -EIO; /* we're in a forced umount, don't write! */
}
if (fsc->mount_options->wsize && fsc->mount_options->wsize < wsize)
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 16b54aa31f08..5a743ac141ab 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -71,9 +71,9 @@ static int mdsc_show(struct seq_file *s, void *p)
seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
if (req->r_got_unsafe)
- seq_printf(s, "\t(unsafe)");
+ seq_puts(s, "\t(unsafe)");
else
- seq_printf(s, "\t");
+ seq_puts(s, "\t");
if (req->r_inode) {
seq_printf(s, " #%llx", ceph_ino(req->r_inode));
@@ -119,7 +119,7 @@ static int mdsc_show(struct seq_file *s, void *p)
seq_printf(s, " %s", req->r_path2);
}
- seq_printf(s, "\n");
+ seq_puts(s, "\n");
}
mutex_unlock(&mdsc->mutex);
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 233c6f96910a..e4fff9ff1c27 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -821,7 +821,7 @@ no_change:
spin_unlock(&ci->i_ceph_lock);
}
} else if (cap_fmode >= 0) {
- pr_warning("mds issued no caps on %llx.%llx\n",
+ pr_warn("mds issued no caps on %llx.%llx\n",
ceph_vinop(inode));
__ceph_get_fmode(ci, cap_fmode);
}
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 2b4d093d0563..9a33b98cb000 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2218,13 +2218,13 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
/* dup? */
if ((req->r_got_unsafe && !head->safe) ||
(req->r_got_safe && head->safe)) {
- pr_warning("got a dup %s reply on %llu from mds%d\n",
+ pr_warn("got a dup %s reply on %llu from mds%d\n",
head->safe ? "safe" : "unsafe", tid, mds);
mutex_unlock(&mdsc->mutex);
goto out;
}
if (req->r_got_safe && !head->safe) {
- pr_warning("got unsafe after safe on %llu from mds%d\n",
+ pr_warn("got unsafe after safe on %llu from mds%d\n",
tid, mds);
mutex_unlock(&mdsc->mutex);
goto out;
@@ -3525,7 +3525,7 @@ static void peer_reset(struct ceph_connection *con)
struct ceph_mds_session *s = con->private;
struct ceph_mds_client *mdsc = s->s_mdsc;
- pr_warning("mds%d closed our session\n", s->s_mds);
+ pr_warn("mds%d closed our session\n", s->s_mds);
send_mds_reconnect(mdsc, s);
}
diff --git a/fs/ceph/mdsmap.c b/fs/ceph/mdsmap.c
index 132b64eeecd4..261531e55e9d 100644
--- a/fs/ceph/mdsmap.c
+++ b/fs/ceph/mdsmap.c
@@ -62,7 +62,7 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end)
ceph_decode_16_safe(p, end, version, bad);
if (version > 3) {
- pr_warning("got mdsmap version %d > 3, failing", version);
+ pr_warn("got mdsmap version %d > 3, failing", version);
goto bad;
}
diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c
index 911cf30d057d..7740b1c871c1 100644
--- a/fs/coda/cnode.c
+++ b/fs/coda/cnode.c
@@ -101,7 +101,7 @@ struct inode *coda_cnode_make(struct CodaFid *fid, struct super_block *sb)
inode = coda_iget(sb, fid, &attr);
if (IS_ERR(inode))
- printk("coda_cnode_make: coda_iget failed\n");
+ pr_warn("%s: coda_iget failed\n", __func__);
return inode;
}
@@ -137,7 +137,7 @@ struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb)
unsigned long hash = coda_f2i(fid);
if ( !sb ) {
- printk("coda_fid_to_inode: no sb!\n");
+ pr_warn("%s: no sb!\n", __func__);
return NULL;
}
diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h
index e7550cb9fb74..d42b725b1d21 100644
--- a/fs/coda/coda_linux.h
+++ b/fs/coda/coda_linux.h
@@ -12,6 +12,12 @@
#ifndef _LINUX_CODA_FS
#define _LINUX_CODA_FS
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/mm.h>
@@ -63,7 +69,7 @@ void coda_sysctl_clean(void);
else \
ptr = (cast)vzalloc((unsigned long) size); \
if (!ptr) \
- printk("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \
+ pr_warn("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \
} while (0)
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 5efbb5ee0adc..cd8a63238b11 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -102,7 +102,7 @@ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, unsig
int type = 0;
if (length > CODA_MAXNAMLEN) {
- printk(KERN_ERR "name too long: lookup, %s (%*s)\n",
+ pr_err("name too long: lookup, %s (%*s)\n",
coda_i2s(dir), (int)length, name);
return ERR_PTR(-ENAMETOOLONG);
}
@@ -453,23 +453,23 @@ static int coda_venus_readdir(struct file *coda_file, struct dir_context *ctx)
ret = kernel_read(host_file, ctx->pos - 2, (char *)vdir,
sizeof(*vdir));
if (ret < 0) {
- printk(KERN_ERR "coda readdir: read dir %s failed %d\n",
- coda_f2s(&cii->c_fid), ret);
+ pr_err("%s: read dir %s failed %d\n",
+ __func__, coda_f2s(&cii->c_fid), ret);
break;
}
if (ret == 0) break; /* end of directory file reached */
/* catch truncated reads */
if (ret < vdir_size || ret < vdir_size + vdir->d_namlen) {
- printk(KERN_ERR "coda readdir: short read on %s\n",
- coda_f2s(&cii->c_fid));
+ pr_err("%s: short read on %s\n",
+ __func__, coda_f2s(&cii->c_fid));
ret = -EBADF;
break;
}
/* validate whether the directory file actually makes sense */
if (vdir->d_reclen < vdir_size + vdir->d_namlen) {
- printk(KERN_ERR "coda readdir: invalid dir %s\n",
- coda_f2s(&cii->c_fid));
+ pr_err("%s: invalid dir %s\n",
+ __func__, coda_f2s(&cii->c_fid));
ret = -EBADF;
break;
}
@@ -589,8 +589,8 @@ int coda_revalidate_inode(struct inode *inode)
coda_vattr_to_iattr(inode, &attr);
if ((old_mode & S_IFMT) != (inode->i_mode & S_IFMT)) {
- printk("Coda: inode %ld, fid %s changed type!\n",
- inode->i_ino, coda_f2s(&(cii->c_fid)));
+ pr_warn("inode %ld, fid %s changed type!\n",
+ inode->i_ino, coda_f2s(&(cii->c_fid)));
}
/* the following can happen when a local fid is replaced
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index d9c7751f10ac..fe3afb2de880 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -119,12 +119,12 @@ static int get_device_index(struct coda_mount_data *data)
int idx;
if (data == NULL) {
- printk("coda_read_super: Bad mount data\n");
+ pr_warn("%s: Bad mount data\n", __func__);
return -1;
}
if (data->version != CODA_MOUNT_VERSION) {
- printk("coda_read_super: Bad mount version\n");
+ pr_warn("%s: Bad mount version\n", __func__);
return -1;
}
@@ -141,13 +141,13 @@ static int get_device_index(struct coda_mount_data *data)
fdput(f);
if (idx < 0 || idx >= MAX_CODADEVS) {
- printk("coda_read_super: Bad minor number\n");
+ pr_warn("%s: Bad minor number\n", __func__);
return -1;
}
return idx;
Ebadf:
- printk("coda_read_super: Bad file\n");
+ pr_warn("%s: Bad file\n", __func__);
return -1;
}
@@ -168,19 +168,19 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
if(idx == -1)
idx = 0;
- printk(KERN_INFO "coda_read_super: device index: %i\n", idx);
+ pr_info("%s: device index: %i\n", __func__, idx);
vc = &coda_comms[idx];
mutex_lock(&vc->vc_mutex);
if (!vc->vc_inuse) {
- printk("coda_read_super: No pseudo device\n");
+ pr_warn("%s: No pseudo device\n", __func__);
error = -EINVAL;
goto unlock_out;
}
if (vc->vc_sb) {
- printk("coda_read_super: Device already mounted\n");
+ pr_warn("%s: Device already mounted\n", __func__);
error = -EBUSY;
goto unlock_out;
}
@@ -204,22 +204,23 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
/* get root fid from Venus: this needs the root inode */
error = venus_rootfid(sb, &fid);
if ( error ) {
- printk("coda_read_super: coda_get_rootfid failed with %d\n",
- error);
+ pr_warn("%s: coda_get_rootfid failed with %d\n",
+ __func__, error);
goto error;
}
- printk("coda_read_super: rootfid is %s\n", coda_f2s(&fid));
+ pr_info("%s: rootfid is %s\n", __func__, coda_f2s(&fid));
/* make root inode */
root = coda_cnode_make(&fid, sb);
if (IS_ERR(root)) {
error = PTR_ERR(root);
- printk("Failure of coda_cnode_make for root: error %d\n", error);
+ pr_warn("Failure of coda_cnode_make for root: error %d\n",
+ error);
goto error;
}
- printk("coda_read_super: rootinode is %ld dev %s\n",
- root->i_ino, root->i_sb->s_id);
+ pr_info("%s: rootinode is %ld dev %s\n",
+ __func__, root->i_ino, root->i_sb->s_id);
sb->s_root = d_make_root(root);
if (!sb->s_root) {
error = -EINVAL;
@@ -246,7 +247,7 @@ static void coda_put_super(struct super_block *sb)
sb->s_fs_info = NULL;
mutex_unlock(&vcp->vc_mutex);
- printk("Coda: Bye bye.\n");
+ pr_info("Bye bye.\n");
}
static void coda_evict_inode(struct inode *inode)
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index ebc2bae6c289..5c1e4242368b 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -114,14 +114,14 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
int size = sizeof(*dcbuf);
if ( nbytes < sizeof(struct coda_out_hdr) ) {
- printk("coda_downcall opc %d uniq %d, not enough!\n",
- hdr.opcode, hdr.unique);
+ pr_warn("coda_downcall opc %d uniq %d, not enough!\n",
+ hdr.opcode, hdr.unique);
count = nbytes;
goto out;
}
if ( nbytes > size ) {
- printk("Coda: downcall opc %d, uniq %d, too much!",
- hdr.opcode, hdr.unique);
+ pr_warn("downcall opc %d, uniq %d, too much!",
+ hdr.opcode, hdr.unique);
nbytes = size;
}
CODA_ALLOC(dcbuf, union outputArgs *, nbytes);
@@ -136,7 +136,8 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
CODA_FREE(dcbuf, nbytes);
if (error) {
- printk("psdev_write: coda_downcall error: %d\n", error);
+ pr_warn("%s: coda_downcall error: %d\n",
+ __func__, error);
retval = error;
goto out;
}
@@ -157,16 +158,17 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
mutex_unlock(&vcp->vc_mutex);
if (!req) {
- printk("psdev_write: msg (%d, %d) not found\n",
- hdr.opcode, hdr.unique);
+ pr_warn("%s: msg (%d, %d) not found\n",
+ __func__, hdr.opcode, hdr.unique);
retval = -ESRCH;
goto out;
}
/* move data into response buffer. */
if (req->uc_outSize < nbytes) {
- printk("psdev_write: too much cnt: %d, cnt: %ld, opc: %d, uniq: %d.\n",
- req->uc_outSize, (long)nbytes, hdr.opcode, hdr.unique);
+ pr_warn("%s: too much cnt: %d, cnt: %ld, opc: %d, uniq: %d.\n",
+ __func__, req->uc_outSize, (long)nbytes,
+ hdr.opcode, hdr.unique);
nbytes = req->uc_outSize; /* don't have more space! */
}
if (copy_from_user(req->uc_data, buf, nbytes)) {
@@ -240,8 +242,8 @@ static ssize_t coda_psdev_read(struct file * file, char __user * buf,
/* Move the input args into userspace */
count = req->uc_inSize;
if (nbytes < req->uc_inSize) {
- printk ("psdev_read: Venus read %ld bytes of %d in message\n",
- (long)nbytes, req->uc_inSize);
+ pr_warn("%s: Venus read %ld bytes of %d in message\n",
+ __func__, (long)nbytes, req->uc_inSize);
count = nbytes;
}
@@ -305,7 +307,7 @@ static int coda_psdev_release(struct inode * inode, struct file * file)
struct upc_req *req, *tmp;
if (!vcp || !vcp->vc_inuse ) {
- printk("psdev_release: Not open.\n");
+ pr_warn("%s: Not open.\n", __func__);
return -1;
}
@@ -354,8 +356,8 @@ static int init_coda_psdev(void)
{
int i, err = 0;
if (register_chrdev(CODA_PSDEV_MAJOR, "coda", &coda_psdev_fops)) {
- printk(KERN_ERR "coda_psdev: unable to get major %d\n",
- CODA_PSDEV_MAJOR);
+ pr_err("%s: unable to get major %d\n",
+ __func__, CODA_PSDEV_MAJOR);
return -EIO;
}
coda_psdev_class = class_create(THIS_MODULE, "coda");
@@ -393,13 +395,13 @@ static int __init init_coda(void)
goto out2;
status = init_coda_psdev();
if ( status ) {
- printk("Problem (%d) in init_coda_psdev\n", status);
+ pr_warn("Problem (%d) in init_coda_psdev\n", status);
goto out1;
}
status = register_filesystem(&coda_fs_type);
if (status) {
- printk("coda: failed to register filesystem!\n");
+ pr_warn("failed to register filesystem!\n");
goto out;
}
return 0;
@@ -420,9 +422,8 @@ static void __exit exit_coda(void)
int err, i;
err = unregister_filesystem(&coda_fs_type);
- if ( err != 0 ) {
- printk("coda: failed to unregister filesystem\n");
- }
+ if (err != 0)
+ pr_warn("failed to unregister filesystem\n");
for (i = 0; i < MAX_CODADEVS; i++)
device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
class_destroy(coda_psdev_class);
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index af56ad56a89a..34218a8a28cd 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -14,7 +14,7 @@
#ifdef CONFIG_SYSCTL
static struct ctl_table_header *fs_table_header;
-static ctl_table coda_table[] = {
+static struct ctl_table coda_table[] = {
{
.procname = "timeout",
.data = &coda_timeout,
@@ -39,7 +39,7 @@ static ctl_table coda_table[] = {
{}
};
-static ctl_table fs_table[] = {
+static struct ctl_table fs_table[] = {
{
.procname = "coda",
.mode = 0555,
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index 3a731976dc5e..21fcf8dcb9cd 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -508,8 +508,8 @@ int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
inp->coda_ioctl.data = (char *)(INSIZE(ioctl));
/* get the data out of user space */
- if ( copy_from_user((char*)inp + (long)inp->coda_ioctl.data,
- data->vi.in, data->vi.in_size) ) {
+ if (copy_from_user((char *)inp + (long)inp->coda_ioctl.data,
+ data->vi.in, data->vi.in_size)) {
error = -EINVAL;
goto exit;
}
@@ -518,8 +518,8 @@ int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
&outsize, inp);
if (error) {
- printk("coda_pioctl: Venus returns: %d for %s\n",
- error, coda_f2s(fid));
+ pr_warn("%s: Venus returns: %d for %s\n",
+ __func__, error, coda_f2s(fid));
goto exit;
}
@@ -675,7 +675,7 @@ static int coda_upcall(struct venus_comm *vcp,
mutex_lock(&vcp->vc_mutex);
if (!vcp->vc_inuse) {
- printk(KERN_NOTICE "coda: Venus dead, not sending upcall\n");
+ pr_notice("Venus dead, not sending upcall\n");
error = -ENXIO;
goto exit;
}
@@ -725,7 +725,7 @@ static int coda_upcall(struct venus_comm *vcp,
error = -EINTR;
if ((req->uc_flags & CODA_REQ_ABORT) || !signal_pending(current)) {
- printk(KERN_WARNING "coda: Unexpected interruption.\n");
+ pr_warn("Unexpected interruption.\n");
goto exit;
}
@@ -735,7 +735,7 @@ static int coda_upcall(struct venus_comm *vcp,
/* Venus saw the upcall, make sure we can send interrupt signal */
if (!vcp->vc_inuse) {
- printk(KERN_INFO "coda: Venus dead, not sending signal.\n");
+ pr_info("Venus dead, not sending signal.\n");
goto exit;
}
diff --git a/fs/dcache.c b/fs/dcache.c
index be2bea834bf4..1792d6075b4f 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -150,7 +150,7 @@ static long get_nr_dentry_unused(void)
return sum < 0 ? 0 : sum;
}
-int proc_nr_dentry(ctl_table *table, int write, void __user *buffer,
+int proc_nr_dentry(struct ctl_table *table, int write, void __user *buffer,
size_t *lenp, loff_t *ppos)
{
dentry_stat.nr_dentry = get_nr_dentry();
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index c71038079b47..cfe8466f7fef 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -10,6 +10,8 @@
*
* ------------------------------------------------------------------------- */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/fs.h>
@@ -148,10 +150,10 @@ static inline struct super_block *pts_sb_from_inode(struct inode *inode)
/*
* parse_mount_options():
- * Set @opts to mount options specified in @data. If an option is not
- * specified in @data, set it to its default value. The exception is
- * 'newinstance' option which can only be set/cleared on a mount (i.e.
- * cannot be changed during remount).
+ * Set @opts to mount options specified in @data. If an option is not
+ * specified in @data, set it to its default value. The exception is
+ * 'newinstance' option which can only be set/cleared on a mount (i.e.
+ * cannot be changed during remount).
*
* Note: @data may be NULL (in which case all options are set to default).
*/
@@ -225,7 +227,7 @@ static int parse_mount_options(char *data, int op, struct pts_mount_opts *opts)
break;
#endif
default:
- printk(KERN_ERR "devpts: called with bogus options\n");
+ pr_err("called with bogus options\n");
return -EINVAL;
}
}
@@ -261,7 +263,7 @@ static int mknod_ptmx(struct super_block *sb)
dentry = d_alloc_name(root, "ptmx");
if (!dentry) {
- printk(KERN_NOTICE "Unable to alloc dentry for ptmx node\n");
+ pr_err("Unable to alloc dentry for ptmx node\n");
goto out;
}
@@ -270,7 +272,7 @@ static int mknod_ptmx(struct super_block *sb)
*/
inode = new_inode(sb);
if (!inode) {
- printk(KERN_ERR "Unable to alloc inode for ptmx node\n");
+ pr_err("Unable to alloc inode for ptmx node\n");
dput(dentry);
goto out;
}
@@ -303,7 +305,7 @@ static void update_ptmx_mode(struct pts_fs_info *fsi)
#else
static inline void update_ptmx_mode(struct pts_fs_info *fsi)
{
- return;
+ return;
}
#endif
@@ -333,9 +335,11 @@ static int devpts_show_options(struct seq_file *seq, struct dentry *root)
struct pts_mount_opts *opts = &fsi->mount_opts;
if (opts->setuid)
- seq_printf(seq, ",uid=%u", from_kuid_munged(&init_user_ns, opts->uid));
+ seq_printf(seq, ",uid=%u",
+ from_kuid_munged(&init_user_ns, opts->uid));
if (opts->setgid)
- seq_printf(seq, ",gid=%u", from_kgid_munged(&init_user_ns, opts->gid));
+ seq_printf(seq, ",gid=%u",
+ from_kgid_munged(&init_user_ns, opts->gid));
seq_printf(seq, ",mode=%03o", opts->mode);
#ifdef CONFIG_DEVPTS_MULTIPLE_INSTANCES
seq_printf(seq, ",ptmxmode=%03o", opts->ptmxmode);
@@ -396,7 +400,7 @@ devpts_fill_super(struct super_block *s, void *data, int silent)
if (s->s_root)
return 0;
- printk(KERN_ERR "devpts: get root dentry failed\n");
+ pr_err("get root dentry failed\n");
fail:
return -ENOMEM;
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 76feb4b60fa6..d521bddf876d 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -157,11 +157,13 @@ static ssize_t cluster_set(struct dlm_cluster *cl, unsigned int *cl_field,
const char *buf, size_t len)
{
unsigned int x;
+ int rc;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
-
- x = simple_strtoul(buf, NULL, 0);
+ rc = kstrtouint(buf, 0, &x);
+ if (rc)
+ return rc;
if (check_zero && !x)
return -EINVAL;
@@ -730,7 +732,10 @@ static ssize_t comm_nodeid_read(struct dlm_comm *cm, char *buf)
static ssize_t comm_nodeid_write(struct dlm_comm *cm, const char *buf,
size_t len)
{
- cm->nodeid = simple_strtol(buf, NULL, 0);
+ int rc = kstrtoint(buf, 0, &cm->nodeid);
+
+ if (rc)
+ return rc;
return len;
}
@@ -742,7 +747,10 @@ static ssize_t comm_local_read(struct dlm_comm *cm, char *buf)
static ssize_t comm_local_write(struct dlm_comm *cm, const char *buf,
size_t len)
{
- cm->local= simple_strtol(buf, NULL, 0);
+ int rc = kstrtoint(buf, 0, &cm->local);
+
+ if (rc)
+ return rc;
if (cm->local && !local_comm)
local_comm = cm;
return len;
@@ -846,7 +854,10 @@ static ssize_t node_nodeid_write(struct dlm_node *nd, const char *buf,
size_t len)
{
uint32_t seq = 0;
- nd->nodeid = simple_strtol(buf, NULL, 0);
+ int rc = kstrtoint(buf, 0, &nd->nodeid);
+
+ if (rc)
+ return rc;
dlm_comm_seq(nd->nodeid, &seq);
nd->comm_seq = seq;
return len;
@@ -860,7 +871,10 @@ static ssize_t node_weight_read(struct dlm_node *nd, char *buf)
static ssize_t node_weight_write(struct dlm_node *nd, const char *buf,
size_t len)
{
- nd->weight = simple_strtol(buf, NULL, 0);
+ int rc = kstrtoint(buf, 0, &nd->weight);
+
+ if (rc)
+ return rc;
return len;
}
diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index b969deef9ebb..8d77ba7b1756 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -68,7 +68,7 @@ static int print_format1_lock(struct seq_file *s, struct dlm_lkb *lkb,
if (lkb->lkb_wait_type)
seq_printf(s, " wait_type: %d", lkb->lkb_wait_type);
- return seq_printf(s, "\n");
+ return seq_puts(s, "\n");
}
static int print_format1(struct dlm_rsb *res, struct seq_file *s)
@@ -92,31 +92,31 @@ static int print_format1(struct dlm_rsb *res, struct seq_file *s)
}
if (res->res_nodeid > 0)
- rv = seq_printf(s, "\" \nLocal Copy, Master is node %d\n",
+ rv = seq_printf(s, "\"\nLocal Copy, Master is node %d\n",
res->res_nodeid);
else if (res->res_nodeid == 0)
- rv = seq_printf(s, "\" \nMaster Copy\n");
+ rv = seq_puts(s, "\"\nMaster Copy\n");
else if (res->res_nodeid == -1)
- rv = seq_printf(s, "\" \nLooking up master (lkid %x)\n",
+ rv = seq_printf(s, "\"\nLooking up master (lkid %x)\n",
res->res_first_lkid);
else
- rv = seq_printf(s, "\" \nInvalid master %d\n",
+ rv = seq_printf(s, "\"\nInvalid master %d\n",
res->res_nodeid);
if (rv)
goto out;
/* Print the LVB: */
if (res->res_lvbptr) {
- seq_printf(s, "LVB: ");
+ seq_puts(s, "LVB: ");
for (i = 0; i < lvblen; i++) {
if (i == lvblen / 2)
- seq_printf(s, "\n ");
+ seq_puts(s, "\n ");
seq_printf(s, "%02x ",
(unsigned char) res->res_lvbptr[i]);
}
if (rsb_flag(res, RSB_VALNOTVALID))
- seq_printf(s, " (INVALID)");
- rv = seq_printf(s, "\n");
+ seq_puts(s, " (INVALID)");
+ rv = seq_puts(s, "\n");
if (rv)
goto out;
}
@@ -133,21 +133,21 @@ static int print_format1(struct dlm_rsb *res, struct seq_file *s)
}
/* Print the locks attached to this resource */
- seq_printf(s, "Granted Queue\n");
+ seq_puts(s, "Granted Queue\n");
list_for_each_entry(lkb, &res->res_grantqueue, lkb_statequeue) {
rv = print_format1_lock(s, lkb, res);
if (rv)
goto out;
}
- seq_printf(s, "Conversion Queue\n");
+ seq_puts(s, "Conversion Queue\n");
list_for_each_entry(lkb, &res->res_convertqueue, lkb_statequeue) {
rv = print_format1_lock(s, lkb, res);
if (rv)
goto out;
}
- seq_printf(s, "Waiting Queue\n");
+ seq_puts(s, "Waiting Queue\n");
list_for_each_entry(lkb, &res->res_waitqueue, lkb_statequeue) {
rv = print_format1_lock(s, lkb, res);
if (rv)
@@ -157,13 +157,13 @@ static int print_format1(struct dlm_rsb *res, struct seq_file *s)
if (list_empty(&res->res_lookup))
goto out;
- seq_printf(s, "Lookup Queue\n");
+ seq_puts(s, "Lookup Queue\n");
list_for_each_entry(lkb, &res->res_lookup, lkb_rsb_lookup) {
rv = seq_printf(s, "%08x %s", lkb->lkb_id,
print_lockmode(lkb->lkb_rqmode));
if (lkb->lkb_wait_type)
seq_printf(s, " wait_type: %d", lkb->lkb_wait_type);
- rv = seq_printf(s, "\n");
+ rv = seq_puts(s, "\n");
}
out:
unlock_rsb(res);
@@ -300,7 +300,7 @@ static int print_format3(struct dlm_rsb *r, struct seq_file *s)
else
seq_printf(s, " %02x", (unsigned char)r->res_name[i]);
}
- rv = seq_printf(s, "\n");
+ rv = seq_puts(s, "\n");
if (rv)
goto out;
@@ -311,7 +311,7 @@ static int print_format3(struct dlm_rsb *r, struct seq_file *s)
for (i = 0; i < lvblen; i++)
seq_printf(s, " %02x", (unsigned char)r->res_lvbptr[i]);
- rv = seq_printf(s, "\n");
+ rv = seq_puts(s, "\n");
if (rv)
goto out;
@@ -377,7 +377,7 @@ static int print_format4(struct dlm_rsb *r, struct seq_file *s)
else
seq_printf(s, " %02x", (unsigned char)r->res_name[i]);
}
- rv = seq_printf(s, "\n");
+ rv = seq_puts(s, "\n");
out:
unlock_rsb(r);
return rv;
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 04d6398c1f1c..f3e72787e7f9 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -35,8 +35,11 @@ static struct task_struct * scand_task;
static ssize_t dlm_control_store(struct dlm_ls *ls, const char *buf, size_t len)
{
ssize_t ret = len;
- int n = simple_strtol(buf, NULL, 0);
+ int n;
+ int rc = kstrtoint(buf, 0, &n);
+ if (rc)
+ return rc;
ls = dlm_find_lockspace_local(ls->ls_local_handle);
if (!ls)
return -EINVAL;
@@ -57,7 +60,10 @@ static ssize_t dlm_control_store(struct dlm_ls *ls, const char *buf, size_t len)
static ssize_t dlm_event_store(struct dlm_ls *ls, const char *buf, size_t len)
{
- ls->ls_uevent_result = simple_strtol(buf, NULL, 0);
+ int rc = kstrtoint(buf, 0, &ls->ls_uevent_result);
+
+ if (rc)
+ return rc;
set_bit(LSFL_UEVENT_WAIT, &ls->ls_flags);
wake_up(&ls->ls_uevent_wait);
return len;
@@ -70,7 +76,10 @@ static ssize_t dlm_id_show(struct dlm_ls *ls, char *buf)
static ssize_t dlm_id_store(struct dlm_ls *ls, const char *buf, size_t len)
{
- ls->ls_global_id = simple_strtoul(buf, NULL, 0);
+ int rc = kstrtouint(buf, 0, &ls->ls_global_id);
+
+ if (rc)
+ return rc;
return len;
}
@@ -81,7 +90,11 @@ static ssize_t dlm_nodir_show(struct dlm_ls *ls, char *buf)
static ssize_t dlm_nodir_store(struct dlm_ls *ls, const char *buf, size_t len)
{
- int val = simple_strtoul(buf, NULL, 0);
+ int val;
+ int rc = kstrtoint(buf, 0, &val);
+
+ if (rc)
+ return rc;
if (val == 1)
set_bit(LSFL_NODIR, &ls->ls_flags);
return len;
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 9280202e488c..1de7294aad20 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -50,7 +50,7 @@ static void drop_slab(void)
} while (nr_objects > 10);
}
-int drop_caches_sysctl_handler(ctl_table *table, int write,
+int drop_caches_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
int ret;
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index af903128891c..b73e0621ce9e 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -293,7 +293,7 @@ static LIST_HEAD(tfile_check_list);
static long zero;
static long long_max = LONG_MAX;
-ctl_table epoll_table[] = {
+struct ctl_table epoll_table[] = {
{
.procname = "max_user_watches",
.data = &max_user_watches,
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index 7c31f4bc74a9..e0c4ba39a377 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -52,7 +52,8 @@ struct fat_mount_options {
usefree:1, /* Use free_clusters for FAT32 */
tz_set:1, /* Filesystem timestamps' offset set */
rodir:1, /* allow ATTR_RO for directory */
- discard:1; /* Issue discard requests on deletions */
+ discard:1, /* Issue discard requests on deletions */
+ dos1xfloppy:1; /* Assume default BPB for DOS 1.x floppies */
};
#define FAT_HASH_BITS 8
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index b3361fe2bcb5..9c83594d7fb5 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -35,9 +35,71 @@
#define CONFIG_FAT_DEFAULT_IOCHARSET ""
#endif
+#define KB_IN_SECTORS 2
+
+/*
+ * A deserialized copy of the on-disk structure laid out in struct
+ * fat_boot_sector.
+ */
+struct fat_bios_param_block {
+ u16 fat_sector_size;
+ u8 fat_sec_per_clus;
+ u16 fat_reserved;
+ u8 fat_fats;
+ u16 fat_dir_entries;
+ u16 fat_sectors;
+ u16 fat_fat_length;
+ u32 fat_total_sect;
+
+ u8 fat16_state;
+ u32 fat16_vol_id;
+
+ u32 fat32_length;
+ u32 fat32_root_cluster;
+ u16 fat32_info_sector;
+ u8 fat32_state;
+ u32 fat32_vol_id;
+};
+
static int fat_default_codepage = CONFIG_FAT_DEFAULT_CODEPAGE;
static char fat_default_iocharset[] = CONFIG_FAT_DEFAULT_IOCHARSET;
+static struct fat_floppy_defaults {
+ unsigned nr_sectors;
+ unsigned sec_per_clus;
+ unsigned dir_entries;
+ unsigned media;
+ unsigned fat_length;
+} floppy_defaults[] = {
+{
+ .nr_sectors = 160 * KB_IN_SECTORS,
+ .sec_per_clus = 1,
+ .dir_entries = 64,
+ .media = 0xFE,
+ .fat_length = 1,
+},
+{
+ .nr_sectors = 180 * KB_IN_SECTORS,
+ .sec_per_clus = 1,
+ .dir_entries = 64,
+ .media = 0xFC,
+ .fat_length = 2,
+},
+{
+ .nr_sectors = 320 * KB_IN_SECTORS,
+ .sec_per_clus = 2,
+ .dir_entries = 112,
+ .media = 0xFF,
+ .fat_length = 1,
+},
+{
+ .nr_sectors = 360 * KB_IN_SECTORS,
+ .sec_per_clus = 2,
+ .dir_entries = 112,
+ .media = 0xFD,
+ .fat_length = 2,
+},
+};
static int fat_add_cluster(struct inode *inode)
{
@@ -359,7 +421,7 @@ struct inode *fat_iget(struct super_block *sb, loff_t i_pos)
static int is_exec(unsigned char *extension)
{
- unsigned char *exe_extensions = "EXECOMBAT", *walk;
+ unsigned char exe_extensions[] = "EXECOMBAT", *walk;
for (walk = exe_extensions; *walk; walk += 3)
if (!strncmp(extension, walk, 3))
@@ -853,6 +915,8 @@ static int fat_show_options(struct seq_file *m, struct dentry *root)
seq_puts(m, ",nfs=stale_rw");
if (opts->discard)
seq_puts(m, ",discard");
+ if (opts->dos1xfloppy)
+ seq_puts(m, ",dos1xfloppy");
return 0;
}
@@ -867,7 +931,7 @@ enum {
Opt_uni_xl_no, Opt_uni_xl_yes, Opt_nonumtail_no, Opt_nonumtail_yes,
Opt_obsolete, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err_cont,
Opt_err_panic, Opt_err_ro, Opt_discard, Opt_nfs, Opt_time_offset,
- Opt_nfs_stale_rw, Opt_nfs_nostale_ro, Opt_err,
+ Opt_nfs_stale_rw, Opt_nfs_nostale_ro, Opt_err, Opt_dos1xfloppy,
};
static const match_table_t fat_tokens = {
@@ -900,6 +964,7 @@ static const match_table_t fat_tokens = {
{Opt_nfs_stale_rw, "nfs"},
{Opt_nfs_stale_rw, "nfs=stale_rw"},
{Opt_nfs_nostale_ro, "nfs=nostale_ro"},
+ {Opt_dos1xfloppy, "dos1xfloppy"},
{Opt_obsolete, "conv=binary"},
{Opt_obsolete, "conv=text"},
{Opt_obsolete, "conv=auto"},
@@ -1102,6 +1167,9 @@ static int parse_options(struct super_block *sb, char *options, int is_vfat,
case Opt_nfs_nostale_ro:
opts->nfs = FAT_NFS_NOSTALE_RO;
break;
+ case Opt_dos1xfloppy:
+ opts->dos1xfloppy = 1;
+ break;
/* msdos specific */
case Opt_dots:
@@ -1247,6 +1315,169 @@ static unsigned long calc_fat_clusters(struct super_block *sb)
return sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
}
+static bool fat_bpb_is_zero(struct fat_boot_sector *b)
+{
+ if (get_unaligned_le16(&b->sector_size))
+ return false;
+ if (b->sec_per_clus)
+ return false;
+ if (b->reserved)
+ return false;
+ if (b->fats)
+ return false;
+ if (get_unaligned_le16(&b->dir_entries))
+ return false;
+ if (get_unaligned_le16(&b->sectors))
+ return false;
+ if (b->media)
+ return false;
+ if (b->fat_length)
+ return false;
+ if (b->secs_track)
+ return false;
+ if (b->heads)
+ return false;
+ return true;
+}
+
+static int fat_read_bpb(struct super_block *sb, struct fat_boot_sector *b,
+ int silent, struct fat_bios_param_block *bpb)
+{
+ int error = -EINVAL;
+
+ /* Read in BPB ... */
+ memset(bpb, 0, sizeof(*bpb));
+ bpb->fat_sector_size = get_unaligned_le16(&b->sector_size);
+ bpb->fat_sec_per_clus = b->sec_per_clus;
+ bpb->fat_reserved = le16_to_cpu(b->reserved);
+ bpb->fat_fats = b->fats;
+ bpb->fat_dir_entries = get_unaligned_le16(&b->dir_entries);
+ bpb->fat_sectors = get_unaligned_le16(&b->sectors);
+ bpb->fat_fat_length = le16_to_cpu(b->fat_length);
+ bpb->fat_total_sect = le32_to_cpu(b->total_sect);
+
+ bpb->fat16_state = b->fat16.state;
+ bpb->fat16_vol_id = get_unaligned_le32(b->fat16.vol_id);
+
+ bpb->fat32_length = le32_to_cpu(b->fat32.length);
+ bpb->fat32_root_cluster = le32_to_cpu(b->fat32.root_cluster);
+ bpb->fat32_info_sector = le16_to_cpu(b->fat32.info_sector);
+ bpb->fat32_state = b->fat32.state;
+ bpb->fat32_vol_id = get_unaligned_le32(b->fat32.vol_id);
+
+ /* Validate this looks like a FAT filesystem BPB */
+ if (!bpb->fat_reserved) {
+ if (!silent)
+ fat_msg(sb, KERN_ERR,
+ "bogus number of reserved sectors");
+ goto out;
+ }
+ if (!bpb->fat_fats) {
+ if (!silent)
+ fat_msg(sb, KERN_ERR, "bogus number of FAT structure");
+ goto out;
+ }
+
+ /*
+ * Earlier we checked here that b->secs_track and b->head are nonzero,
+ * but it turns out valid FAT filesystems can have zero there.
+ */
+
+ if (!fat_valid_media(b->media)) {
+ if (!silent)
+ fat_msg(sb, KERN_ERR, "invalid media value (0x%02x)",
+ (unsigned)b->media);
+ goto out;
+ }
+
+ if (!is_power_of_2(bpb->fat_sector_size)
+ || (bpb->fat_sector_size < 512)
+ || (bpb->fat_sector_size > 4096)) {
+ if (!silent)
+ fat_msg(sb, KERN_ERR, "bogus logical sector size %u",
+ (unsigned)bpb->fat_sector_size);
+ goto out;
+ }
+
+ if (!is_power_of_2(bpb->fat_sec_per_clus)) {
+ if (!silent)
+ fat_msg(sb, KERN_ERR, "bogus sectors per cluster %u",
+ (unsigned)bpb->fat_sec_per_clus);
+ goto out;
+ }
+
+ error = 0;
+
+out:
+ return error;
+}
+
+static int fat_read_static_bpb(struct super_block *sb,
+ struct fat_boot_sector *b, int silent,
+ struct fat_bios_param_block *bpb)
+{
+ static const char *notdos1x = "This doesn't look like a DOS 1.x volume";
+
+ struct fat_floppy_defaults *fdefaults = NULL;
+ int error = -EINVAL;
+ sector_t bd_sects;
+ unsigned i;
+
+ bd_sects = i_size_read(sb->s_bdev->bd_inode) / SECTOR_SIZE;
+
+ /* 16-bit DOS 1.x reliably wrote bootstrap short-jmp code */
+ if (b->ignored[0] != 0xeb || b->ignored[2] != 0x90) {
+ if (!silent)
+ fat_msg(sb, KERN_ERR,
+ "%s; no bootstrapping code", notdos1x);
+ goto out;
+ }
+
+ /*
+ * If any value in this region is non-zero, it isn't archaic
+ * DOS.
+ */
+ if (!fat_bpb_is_zero(b)) {
+ if (!silent)
+ fat_msg(sb, KERN_ERR,
+ "%s; DOS 2.x BPB is non-zero", notdos1x);
+ goto out;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(floppy_defaults); i++) {
+ if (floppy_defaults[i].nr_sectors == bd_sects) {
+ fdefaults = &floppy_defaults[i];
+ break;
+ }
+ }
+
+ if (fdefaults == NULL) {
+ if (!silent)
+ fat_msg(sb, KERN_WARNING,
+ "This looks like a DOS 1.x volume, but isn't a recognized floppy size (%llu sectors)",
+ (u64)bd_sects);
+ goto out;
+ }
+
+ if (!silent)
+ fat_msg(sb, KERN_INFO,
+ "This looks like a DOS 1.x volume; assuming default BPB values");
+
+ memset(bpb, 0, sizeof(*bpb));
+ bpb->fat_sector_size = SECTOR_SIZE;
+ bpb->fat_sec_per_clus = fdefaults->sec_per_clus;
+ bpb->fat_reserved = 1;
+ bpb->fat_fats = 2;
+ bpb->fat_dir_entries = fdefaults->dir_entries;
+ bpb->fat_sectors = fdefaults->nr_sectors;
+ bpb->fat_fat_length = fdefaults->fat_length;
+
+ error = 0;
+
+out:
+ return error;
+}
+
/*
* Read the super block of an MS-DOS FS.
*/
@@ -1256,12 +1487,11 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
struct inode *root_inode = NULL, *fat_inode = NULL;
struct inode *fsinfo_inode = NULL;
struct buffer_head *bh;
- struct fat_boot_sector *b;
+ struct fat_bios_param_block bpb;
struct msdos_sb_info *sbi;
u16 logical_sector_size;
u32 total_sectors, total_clusters, fat_clusters, rootdir_sectors;
int debug;
- unsigned int media;
long error;
char buf[50];
@@ -1298,100 +1528,72 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
goto out_fail;
}
- b = (struct fat_boot_sector *) bh->b_data;
- if (!b->reserved) {
- if (!silent)
- fat_msg(sb, KERN_ERR, "bogus number of reserved sectors");
- brelse(bh);
- goto out_invalid;
- }
- if (!b->fats) {
- if (!silent)
- fat_msg(sb, KERN_ERR, "bogus number of FAT structure");
- brelse(bh);
- goto out_invalid;
- }
+ error = fat_read_bpb(sb, (struct fat_boot_sector *)bh->b_data, silent,
+ &bpb);
+ if (error == -EINVAL && sbi->options.dos1xfloppy)
+ error = fat_read_static_bpb(sb,
+ (struct fat_boot_sector *)bh->b_data, silent, &bpb);
+ brelse(bh);
- /*
- * Earlier we checked here that b->secs_track and b->head are nonzero,
- * but it turns out valid FAT filesystems can have zero there.
- */
+ if (error == -EINVAL)
+ goto out_invalid;
+ else if (error)
+ goto out_fail;
- media = b->media;
- if (!fat_valid_media(media)) {
- if (!silent)
- fat_msg(sb, KERN_ERR, "invalid media value (0x%02x)",
- media);
- brelse(bh);
- goto out_invalid;
- }
- logical_sector_size = get_unaligned_le16(&b->sector_size);
- if (!is_power_of_2(logical_sector_size)
- || (logical_sector_size < 512)
- || (logical_sector_size > 4096)) {
- if (!silent)
- fat_msg(sb, KERN_ERR, "bogus logical sector size %u",
- logical_sector_size);
- brelse(bh);
- goto out_invalid;
- }
- sbi->sec_per_clus = b->sec_per_clus;
- if (!is_power_of_2(sbi->sec_per_clus)) {
- if (!silent)
- fat_msg(sb, KERN_ERR, "bogus sectors per cluster %u",
- sbi->sec_per_clus);
- brelse(bh);
- goto out_invalid;
- }
+ logical_sector_size = bpb.fat_sector_size;
+ sbi->sec_per_clus = bpb.fat_sec_per_clus;
+ error = -EIO;
if (logical_sector_size < sb->s_blocksize) {
fat_msg(sb, KERN_ERR, "logical sector size too small for device"
" (logical sector size = %u)", logical_sector_size);
- brelse(bh);
goto out_fail;
}
+
if (logical_sector_size > sb->s_blocksize) {
- brelse(bh);
+ struct buffer_head *bh_resize;
if (!sb_set_blocksize(sb, logical_sector_size)) {
fat_msg(sb, KERN_ERR, "unable to set blocksize %u",
logical_sector_size);
goto out_fail;
}
- bh = sb_bread(sb, 0);
- if (bh == NULL) {
+
+ /* Verify that the larger boot sector is fully readable */
+ bh_resize = sb_bread(sb, 0);
+ if (bh_resize == NULL) {
fat_msg(sb, KERN_ERR, "unable to read boot sector"
" (logical sector size = %lu)",
sb->s_blocksize);
goto out_fail;
}
- b = (struct fat_boot_sector *) bh->b_data;
+ brelse(bh_resize);
}
mutex_init(&sbi->s_lock);
sbi->cluster_size = sb->s_blocksize * sbi->sec_per_clus;
sbi->cluster_bits = ffs(sbi->cluster_size) - 1;
- sbi->fats = b->fats;
+ sbi->fats = bpb.fat_fats;
sbi->fat_bits = 0; /* Don't know yet */
- sbi->fat_start = le16_to_cpu(b->reserved);
- sbi->fat_length = le16_to_cpu(b->fat_length);
+ sbi->fat_start = bpb.fat_reserved;
+ sbi->fat_length = bpb.fat_fat_length;
sbi->root_cluster = 0;
sbi->free_clusters = -1; /* Don't know yet */
sbi->free_clus_valid = 0;
sbi->prev_free = FAT_START_ENT;
sb->s_maxbytes = 0xffffffff;
- if (!sbi->fat_length && b->fat32.length) {
+ if (!sbi->fat_length && bpb.fat32_length) {
struct fat_boot_fsinfo *fsinfo;
struct buffer_head *fsinfo_bh;
/* Must be FAT32 */
sbi->fat_bits = 32;
- sbi->fat_length = le32_to_cpu(b->fat32.length);
- sbi->root_cluster = le32_to_cpu(b->fat32.root_cluster);
+ sbi->fat_length = bpb.fat32_length;
+ sbi->root_cluster = bpb.fat32_root_cluster;
/* MC - if info_sector is 0, don't multiply by 0 */
- sbi->fsinfo_sector = le16_to_cpu(b->fat32.info_sector);
+ sbi->fsinfo_sector = bpb.fat32_info_sector;
if (sbi->fsinfo_sector == 0)
sbi->fsinfo_sector = 1;
@@ -1399,7 +1601,6 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
if (fsinfo_bh == NULL) {
fat_msg(sb, KERN_ERR, "bread failed, FSINFO block"
" (sector = %lu)", sbi->fsinfo_sector);
- brelse(bh);
goto out_fail;
}
@@ -1422,35 +1623,28 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
/* interpret volume ID as a little endian 32 bit integer */
if (sbi->fat_bits == 32)
- sbi->vol_id = (((u32)b->fat32.vol_id[0]) |
- ((u32)b->fat32.vol_id[1] << 8) |
- ((u32)b->fat32.vol_id[2] << 16) |
- ((u32)b->fat32.vol_id[3] << 24));
+ sbi->vol_id = bpb.fat32_vol_id;
else /* fat 16 or 12 */
- sbi->vol_id = (((u32)b->fat16.vol_id[0]) |
- ((u32)b->fat16.vol_id[1] << 8) |
- ((u32)b->fat16.vol_id[2] << 16) |
- ((u32)b->fat16.vol_id[3] << 24));
+ sbi->vol_id = bpb.fat16_vol_id;
sbi->dir_per_block = sb->s_blocksize / sizeof(struct msdos_dir_entry);
sbi->dir_per_block_bits = ffs(sbi->dir_per_block) - 1;
sbi->dir_start = sbi->fat_start + sbi->fats * sbi->fat_length;
- sbi->dir_entries = get_unaligned_le16(&b->dir_entries);
+ sbi->dir_entries = bpb.fat_dir_entries;
if (sbi->dir_entries & (sbi->dir_per_block - 1)) {
if (!silent)
fat_msg(sb, KERN_ERR, "bogus directory-entries per block"
" (%u)", sbi->dir_entries);
- brelse(bh);
goto out_invalid;
}
rootdir_sectors = sbi->dir_entries
* sizeof(struct msdos_dir_entry) / sb->s_blocksize;
sbi->data_start = sbi->dir_start + rootdir_sectors;
- total_sectors = get_unaligned_le16(&b->sectors);
+ total_sectors = bpb.fat_sectors;
if (total_sectors == 0)
- total_sectors = le32_to_cpu(b->total_sect);
+ total_sectors = bpb.fat_total_sect;
total_clusters = (total_sectors - sbi->data_start) / sbi->sec_per_clus;
@@ -1459,9 +1653,9 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
/* some OSes set FAT_STATE_DIRTY and clean it on unmount. */
if (sbi->fat_bits == 32)
- sbi->dirty = b->fat32.state & FAT_STATE_DIRTY;
+ sbi->dirty = bpb.fat32_state & FAT_STATE_DIRTY;
else /* fat 16 or 12 */
- sbi->dirty = b->fat16.state & FAT_STATE_DIRTY;
+ sbi->dirty = bpb.fat16_state & FAT_STATE_DIRTY;
/* check that FAT table does not overflow */
fat_clusters = calc_fat_clusters(sb);
@@ -1470,7 +1664,6 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
if (!silent)
fat_msg(sb, KERN_ERR, "count of clusters too big (%u)",
total_clusters);
- brelse(bh);
goto out_invalid;
}
@@ -1483,8 +1676,6 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
if (sbi->prev_free < FAT_START_ENT)
sbi->prev_free = FAT_START_ENT;
- brelse(bh);
-
/* set up enough so that it can read an inode */
fat_hash_init(sb);
dir_hash_init(sb);
diff --git a/fs/file_table.c b/fs/file_table.c
index a374f5033e97..40bf4660f0a3 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -76,14 +76,14 @@ EXPORT_SYMBOL_GPL(get_max_files);
* Handle nr_files sysctl
*/
#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
-int proc_nr_files(ctl_table *table, int write,
+int proc_nr_files(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
files_stat.nr_files = get_nr_files();
return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
}
#else
-int proc_nr_files(ctl_table *table, int write,
+int proc_nr_files(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return -ENOSYS;
diff --git a/fs/fscache/main.c b/fs/fscache/main.c
index acd4bf1fc277..63f868e869b9 100644
--- a/fs/fscache/main.c
+++ b/fs/fscache/main.c
@@ -67,7 +67,7 @@ static int fscache_max_active_sysctl(struct ctl_table *table, int write,
return ret;
}
-ctl_table fscache_sysctls[] = {
+struct ctl_table fscache_sysctls[] = {
{
.procname = "object_max_active",
.data = &fscache_object_max_active,
@@ -87,7 +87,7 @@ ctl_table fscache_sysctls[] = {
{}
};
-ctl_table fscache_sysctls_root[] = {
+struct ctl_table fscache_sysctls_root[] = {
{
.procname = "fscache",
.mode = 0555,
diff --git a/fs/hfsplus/attributes.c b/fs/hfsplus/attributes.c
index caf89a7be0a1..e5b221de7de6 100644
--- a/fs/hfsplus/attributes.c
+++ b/fs/hfsplus/attributes.c
@@ -54,14 +54,11 @@ int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
memset(key, 0, sizeof(struct hfsplus_attr_key));
key->attr.cnid = cpu_to_be32(cnid);
if (name) {
- len = strlen(name);
- if (len > HFSPLUS_ATTR_MAX_STRLEN) {
- pr_err("invalid xattr name's length\n");
- return -EINVAL;
- }
- hfsplus_asc2uni(sb,
+ int res = hfsplus_asc2uni(sb,
(struct hfsplus_unistr *)&key->attr.key_name,
- HFSPLUS_ATTR_MAX_STRLEN, name, len);
+ HFSPLUS_ATTR_MAX_STRLEN, name, strlen(name));
+ if (res)
+ return res;
len = be16_to_cpu(key->attr.key_name.length);
} else {
key->attr.key_name.length = 0;
@@ -82,31 +79,6 @@ int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
return 0;
}
-void hfsplus_attr_build_key_uni(hfsplus_btree_key *key,
- u32 cnid,
- struct hfsplus_attr_unistr *name)
-{
- int ustrlen;
-
- memset(key, 0, sizeof(struct hfsplus_attr_key));
- ustrlen = be16_to_cpu(name->length);
- key->attr.cnid = cpu_to_be32(cnid);
- key->attr.key_name.length = cpu_to_be16(ustrlen);
- ustrlen *= 2;
- memcpy(key->attr.key_name.unicode, name->unicode, ustrlen);
-
- /* The length of the key, as stored in key_len field, does not include
- * the size of the key_len field itself.
- * So, offsetof(hfsplus_attr_key, key_name) is a trick because
- * it takes into consideration key_len field (__be16) of
- * hfsplus_attr_key structure instead of length field (__be16) of
- * hfsplus_attr_unistr structure.
- */
- key->key_len =
- cpu_to_be16(offsetof(struct hfsplus_attr_key, key_name) +
- ustrlen);
-}
-
hfsplus_attr_entry *hfsplus_alloc_attr_entry(void)
{
return kmem_cache_alloc(hfsplus_attr_tree_cachep, GFP_KERNEL);
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
index 11c860204520..759708fd9331 100644
--- a/fs/hfsplus/bnode.c
+++ b/fs/hfsplus/bnode.c
@@ -27,13 +27,13 @@ void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len)
pagep = node->page + (off >> PAGE_CACHE_SHIFT);
off &= ~PAGE_CACHE_MASK;
- l = min(len, (int)PAGE_CACHE_SIZE - off);
+ l = min_t(int, len, PAGE_CACHE_SIZE - off);
memcpy(buf, kmap(*pagep) + off, l);
kunmap(*pagep);
while ((len -= l) != 0) {
buf += l;
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memcpy(buf, kmap(*++pagep), l);
kunmap(*pagep);
}
@@ -80,14 +80,14 @@ void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len)
pagep = node->page + (off >> PAGE_CACHE_SHIFT);
off &= ~PAGE_CACHE_MASK;
- l = min(len, (int)PAGE_CACHE_SIZE - off);
+ l = min_t(int, len, PAGE_CACHE_SIZE - off);
memcpy(kmap(*pagep) + off, buf, l);
set_page_dirty(*pagep);
kunmap(*pagep);
while ((len -= l) != 0) {
buf += l;
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memcpy(kmap(*++pagep), buf, l);
set_page_dirty(*pagep);
kunmap(*pagep);
@@ -110,13 +110,13 @@ void hfs_bnode_clear(struct hfs_bnode *node, int off, int len)
pagep = node->page + (off >> PAGE_CACHE_SHIFT);
off &= ~PAGE_CACHE_MASK;
- l = min(len, (int)PAGE_CACHE_SIZE - off);
+ l = min_t(int, len, PAGE_CACHE_SIZE - off);
memset(kmap(*pagep) + off, 0, l);
set_page_dirty(*pagep);
kunmap(*pagep);
while ((len -= l) != 0) {
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memset(kmap(*++pagep), 0, l);
set_page_dirty(*pagep);
kunmap(*pagep);
@@ -142,14 +142,14 @@ void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
dst &= ~PAGE_CACHE_MASK;
if (src == dst) {
- l = min(len, (int)PAGE_CACHE_SIZE - src);
+ l = min_t(int, len, PAGE_CACHE_SIZE - src);
memcpy(kmap(*dst_page) + src, kmap(*src_page) + src, l);
kunmap(*src_page);
set_page_dirty(*dst_page);
kunmap(*dst_page);
while ((len -= l) != 0) {
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memcpy(kmap(*++dst_page), kmap(*++src_page), l);
kunmap(*src_page);
set_page_dirty(*dst_page);
@@ -251,7 +251,7 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
dst &= ~PAGE_CACHE_MASK;
if (src == dst) {
- l = min(len, (int)PAGE_CACHE_SIZE - src);
+ l = min_t(int, len, PAGE_CACHE_SIZE - src);
memmove(kmap(*dst_page) + src,
kmap(*src_page) + src, l);
kunmap(*src_page);
@@ -259,7 +259,7 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
kunmap(*dst_page);
while ((len -= l) != 0) {
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memmove(kmap(*++dst_page),
kmap(*++src_page), l);
kunmap(*src_page);
@@ -386,9 +386,8 @@ struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid)
struct hfs_bnode *node;
if (cnid >= tree->node_count) {
- pr_err("request for non-existent node "
- "%d in B*Tree\n",
- cnid);
+ pr_err("request for non-existent node %d in B*Tree\n",
+ cnid);
return NULL;
}
@@ -409,9 +408,8 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
loff_t off;
if (cnid >= tree->node_count) {
- pr_err("request for non-existent node "
- "%d in B*Tree\n",
- cnid);
+ pr_err("request for non-existent node %d in B*Tree\n",
+ cnid);
return NULL;
}
@@ -602,7 +600,7 @@ struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num)
pagep = node->page;
memset(kmap(*pagep) + node->page_offset, 0,
- min((int)PAGE_CACHE_SIZE, (int)tree->node_size));
+ min_t(int, PAGE_CACHE_SIZE, tree->node_size));
set_page_dirty(*pagep);
kunmap(*pagep);
for (i = 1; i < tree->pages_per_bnode; i++) {
@@ -648,8 +646,8 @@ void hfs_bnode_put(struct hfs_bnode *node)
if (test_bit(HFS_BNODE_DELETED, &node->flags)) {
hfs_bnode_unhash(node);
spin_unlock(&tree->hash_lock);
- hfs_bnode_clear(node, 0,
- PAGE_CACHE_SIZE * tree->pages_per_bnode);
+ if (hfs_bnode_need_zeroout(tree))
+ hfs_bnode_clear(node, 0, tree->node_size);
hfs_bmap_free(node);
hfs_bnode_free(node);
return;
@@ -658,3 +656,16 @@ void hfs_bnode_put(struct hfs_bnode *node)
}
}
+/*
+ * Unused nodes have to be zeroed if this is the catalog tree and
+ * a corresponding flag in the volume header is set.
+ */
+bool hfs_bnode_need_zeroout(struct hfs_btree *tree)
+{
+ struct super_block *sb = tree->inode->i_sb;
+ struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
+ const u32 volume_attr = be32_to_cpu(sbi->s_vhdr->attributes);
+
+ return tree->cnid == HFSPLUS_CAT_CNID &&
+ volume_attr & HFSPLUS_VOL_UNUSED_NODE_FIX;
+}
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index 0fcec8b2a90b..3345c7553edc 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -358,7 +358,7 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
u32 count;
int res;
- res = hfsplus_file_extend(inode);
+ res = hfsplus_file_extend(inode, hfs_bnode_need_zeroout(tree));
if (res)
return ERR_PTR(res);
hip->phys_size = inode->i_size =
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index bdec66522de3..610a3260bef1 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -12,6 +12,7 @@
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/random.h>
+#include <linux/nls.h>
#include "hfsplus_fs.h"
#include "hfsplus_raw.h"
@@ -127,7 +128,7 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
struct inode *inode = file_inode(file);
struct super_block *sb = inode->i_sb;
int len, err;
- char strbuf[HFSPLUS_MAX_STRLEN + 1];
+ char *strbuf;
hfsplus_cat_entry entry;
struct hfs_find_data fd;
struct hfsplus_readdir_data *rd;
@@ -139,6 +140,11 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
if (err)
return err;
+ strbuf = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_MAX_STRLEN + 1, GFP_KERNEL);
+ if (!strbuf) {
+ err = -ENOMEM;
+ goto out;
+ }
hfsplus_cat_build_key(sb, fd.search_key, inode->i_ino, NULL);
err = hfs_brec_find(&fd, hfs_find_rec_by_key);
if (err)
@@ -193,7 +199,7 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
fd.entrylength);
type = be16_to_cpu(entry.type);
- len = HFSPLUS_MAX_STRLEN;
+ len = NLS_MAX_CHARSET_SIZE * HFSPLUS_MAX_STRLEN;
err = hfsplus_uni2asc(sb, &fd.key->cat.name, strbuf, &len);
if (err)
goto out;
@@ -212,13 +218,31 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
be32_to_cpu(entry.folder.id), DT_DIR))
break;
} else if (type == HFSPLUS_FILE) {
+ u16 mode;
+ unsigned type = DT_UNKNOWN;
+
if (fd.entrylength < sizeof(struct hfsplus_cat_file)) {
pr_err("small file entry\n");
err = -EIO;
goto out;
}
+
+ mode = be16_to_cpu(entry.file.permissions.mode);
+ if (S_ISREG(mode))
+ type = DT_REG;
+ else if (S_ISLNK(mode))
+ type = DT_LNK;
+ else if (S_ISFIFO(mode))
+ type = DT_FIFO;
+ else if (S_ISCHR(mode))
+ type = DT_CHR;
+ else if (S_ISBLK(mode))
+ type = DT_BLK;
+ else if (S_ISSOCK(mode))
+ type = DT_SOCK;
+
if (!dir_emit(ctx, strbuf, len,
- be32_to_cpu(entry.file.id), DT_REG))
+ be32_to_cpu(entry.file.id), type))
break;
} else {
pr_err("bad catalog entry type\n");
@@ -246,6 +270,7 @@ next:
}
memcpy(&rd->key, fd.key, sizeof(struct hfsplus_cat_key));
out:
+ kfree(strbuf);
hfs_find_exit(&fd);
return err;
}
diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index a7aafb35b624..feca524ce2a5 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -235,7 +235,7 @@ int hfsplus_get_block(struct inode *inode, sector_t iblock,
if (iblock > hip->fs_blocks || !create)
return -EIO;
if (ablock >= hip->alloc_blocks) {
- res = hfsplus_file_extend(inode);
+ res = hfsplus_file_extend(inode, false);
if (res)
return res;
}
@@ -425,7 +425,7 @@ int hfsplus_free_fork(struct super_block *sb, u32 cnid,
return res;
}
-int hfsplus_file_extend(struct inode *inode)
+int hfsplus_file_extend(struct inode *inode, bool zeroout)
{
struct super_block *sb = inode->i_sb;
struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
@@ -436,10 +436,9 @@ int hfsplus_file_extend(struct inode *inode)
if (sbi->alloc_file->i_size * 8 <
sbi->total_blocks - sbi->free_blocks + 8) {
/* extend alloc file */
- pr_err("extend alloc file! "
- "(%llu,%u,%u)\n",
- sbi->alloc_file->i_size * 8,
- sbi->total_blocks, sbi->free_blocks);
+ pr_err("extend alloc file! (%llu,%u,%u)\n",
+ sbi->alloc_file->i_size * 8,
+ sbi->total_blocks, sbi->free_blocks);
return -ENOSPC;
}
@@ -463,6 +462,12 @@ int hfsplus_file_extend(struct inode *inode)
}
}
+ if (zeroout) {
+ res = sb_issue_zeroout(sb, start, len, GFP_NOFS);
+ if (res)
+ goto out;
+ }
+
hfs_dbg(EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
if (hip->alloc_blocks <= hip->first_blocks) {
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 83dc29286b10..eb5e059f481a 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -369,114 +369,119 @@ typedef int (*search_strategy_t)(struct hfs_bnode *,
/* attributes.c */
int __init hfsplus_create_attr_tree_cache(void);
void hfsplus_destroy_attr_tree_cache(void);
+int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *k1,
+ const hfsplus_btree_key *k2);
+int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
+ u32 cnid, const char *name);
hfsplus_attr_entry *hfsplus_alloc_attr_entry(void);
-void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry_p);
-int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *,
- const hfsplus_btree_key *);
-int hfsplus_attr_build_key(struct super_block *, hfsplus_btree_key *,
- u32, const char *);
-void hfsplus_attr_build_key_uni(hfsplus_btree_key *key,
- u32 cnid,
- struct hfsplus_attr_unistr *name);
-int hfsplus_find_attr(struct super_block *, u32,
- const char *, struct hfs_find_data *);
+void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry);
+int hfsplus_find_attr(struct super_block *sb, u32 cnid, const char *name,
+ struct hfs_find_data *fd);
int hfsplus_attr_exists(struct inode *inode, const char *name);
-int hfsplus_create_attr(struct inode *, const char *, const void *, size_t);
-int hfsplus_delete_attr(struct inode *, const char *);
+int hfsplus_create_attr(struct inode *inode, const char *name,
+ const void *value, size_t size);
+int hfsplus_delete_attr(struct inode *inode, const char *name);
int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid);
/* bitmap.c */
-int hfsplus_block_allocate(struct super_block *, u32, u32, u32 *);
-int hfsplus_block_free(struct super_block *, u32, u32);
+int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset,
+ u32 *max);
+int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count);
/* btree.c */
-u32 hfsplus_calc_btree_clump_size(u32, u32, u64, int);
-struct hfs_btree *hfs_btree_open(struct super_block *, u32);
-void hfs_btree_close(struct hfs_btree *);
-int hfs_btree_write(struct hfs_btree *);
-struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *);
-void hfs_bmap_free(struct hfs_bnode *);
+u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors,
+ int file_id);
+struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id);
+void hfs_btree_close(struct hfs_btree *tree);
+int hfs_btree_write(struct hfs_btree *tree);
+struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree);
+void hfs_bmap_free(struct hfs_bnode *node);
/* bnode.c */
-void hfs_bnode_read(struct hfs_bnode *, void *, int, int);
-u16 hfs_bnode_read_u16(struct hfs_bnode *, int);
-u8 hfs_bnode_read_u8(struct hfs_bnode *, int);
-void hfs_bnode_read_key(struct hfs_bnode *, void *, int);
-void hfs_bnode_write(struct hfs_bnode *, void *, int, int);
-void hfs_bnode_write_u16(struct hfs_bnode *, int, u16);
-void hfs_bnode_clear(struct hfs_bnode *, int, int);
-void hfs_bnode_copy(struct hfs_bnode *, int,
- struct hfs_bnode *, int, int);
-void hfs_bnode_move(struct hfs_bnode *, int, int, int);
-void hfs_bnode_dump(struct hfs_bnode *);
-void hfs_bnode_unlink(struct hfs_bnode *);
-struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *, u32);
-struct hfs_bnode *hfs_bnode_find(struct hfs_btree *, u32);
-void hfs_bnode_unhash(struct hfs_bnode *);
-void hfs_bnode_free(struct hfs_bnode *);
-struct hfs_bnode *hfs_bnode_create(struct hfs_btree *, u32);
-void hfs_bnode_get(struct hfs_bnode *);
-void hfs_bnode_put(struct hfs_bnode *);
+void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len);
+u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off);
+u8 hfs_bnode_read_u8(struct hfs_bnode *node, int off);
+void hfs_bnode_read_key(struct hfs_bnode *node, void *key, int off);
+void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len);
+void hfs_bnode_write_u16(struct hfs_bnode *node, int off, u16 data);
+void hfs_bnode_clear(struct hfs_bnode *node, int off, int len);
+void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
+ struct hfs_bnode *src_node, int src, int len);
+void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len);
+void hfs_bnode_dump(struct hfs_bnode *node);
+void hfs_bnode_unlink(struct hfs_bnode *node);
+struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid);
+void hfs_bnode_unhash(struct hfs_bnode *node);
+struct hfs_bnode *hfs_bnode_find(struct hfs_btree *tree, u32 num);
+void hfs_bnode_free(struct hfs_bnode *node);
+struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num);
+void hfs_bnode_get(struct hfs_bnode *node);
+void hfs_bnode_put(struct hfs_bnode *node);
+bool hfs_bnode_need_zeroout(struct hfs_btree *tree);
/* brec.c */
-u16 hfs_brec_lenoff(struct hfs_bnode *, u16, u16 *);
-u16 hfs_brec_keylen(struct hfs_bnode *, u16);
-int hfs_brec_insert(struct hfs_find_data *, void *, int);
-int hfs_brec_remove(struct hfs_find_data *);
+u16 hfs_brec_lenoff(struct hfs_bnode *node, u16 rec, u16 *off);
+u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec);
+int hfs_brec_insert(struct hfs_find_data *fd, void *entry, int entry_len);
+int hfs_brec_remove(struct hfs_find_data *fd);
/* bfind.c */
-int hfs_find_init(struct hfs_btree *, struct hfs_find_data *);
-void hfs_find_exit(struct hfs_find_data *);
-int hfs_find_1st_rec_by_cnid(struct hfs_bnode *,
- struct hfs_find_data *,
- int *, int *, int *);
-int hfs_find_rec_by_key(struct hfs_bnode *,
- struct hfs_find_data *,
- int *, int *, int *);
-int __hfs_brec_find(struct hfs_bnode *, struct hfs_find_data *,
- search_strategy_t);
-int hfs_brec_find(struct hfs_find_data *, search_strategy_t);
-int hfs_brec_read(struct hfs_find_data *, void *, int);
-int hfs_brec_goto(struct hfs_find_data *, int);
+int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd);
+void hfs_find_exit(struct hfs_find_data *fd);
+int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode, struct hfs_find_data *fd,
+ int *begin, int *end, int *cur_rec);
+int hfs_find_rec_by_key(struct hfs_bnode *bnode, struct hfs_find_data *fd,
+ int *begin, int *end, int *cur_rec);
+int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd,
+ search_strategy_t rec_found);
+int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare);
+int hfs_brec_read(struct hfs_find_data *fd, void *rec, int rec_len);
+int hfs_brec_goto(struct hfs_find_data *fd, int cnt);
/* catalog.c */
-int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *,
- const hfsplus_btree_key *);
-int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *,
- const hfsplus_btree_key *);
-void hfsplus_cat_build_key(struct super_block *sb,
- hfsplus_btree_key *, u32, struct qstr *);
-int hfsplus_find_cat(struct super_block *, u32, struct hfs_find_data *);
-int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
-int hfsplus_delete_cat(u32, struct inode *, struct qstr *);
-int hfsplus_rename_cat(u32, struct inode *, struct qstr *,
- struct inode *, struct qstr *);
+int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
+ const hfsplus_btree_key *k2);
+int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
+ const hfsplus_btree_key *k2);
+void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
+ u32 parent, struct qstr *str);
void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);
+int hfsplus_find_cat(struct super_block *sb, u32 cnid,
+ struct hfs_find_data *fd);
+int hfsplus_create_cat(u32 cnid, struct inode *dir, struct qstr *str,
+ struct inode *inode);
+int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str);
+int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, struct qstr *src_name,
+ struct inode *dst_dir, struct qstr *dst_name);
/* dir.c */
extern const struct inode_operations hfsplus_dir_inode_operations;
extern const struct file_operations hfsplus_dir_operations;
/* extents.c */
-int hfsplus_ext_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
-int hfsplus_ext_write_extent(struct inode *);
-int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int);
-int hfsplus_free_fork(struct super_block *, u32,
- struct hfsplus_fork_raw *, int);
-int hfsplus_file_extend(struct inode *);
-void hfsplus_file_truncate(struct inode *);
+int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1,
+ const hfsplus_btree_key *k2);
+int hfsplus_ext_write_extent(struct inode *inode);
+int hfsplus_get_block(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh_result, int create);
+int hfsplus_free_fork(struct super_block *sb, u32 cnid,
+ struct hfsplus_fork_raw *fork, int type);
+int hfsplus_file_extend(struct inode *inode, bool zeroout);
+void hfsplus_file_truncate(struct inode *inode);
/* inode.c */
extern const struct address_space_operations hfsplus_aops;
extern const struct address_space_operations hfsplus_btree_aops;
extern const struct dentry_operations hfsplus_dentry_operations;
-void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
-void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
-int hfsplus_cat_read_inode(struct inode *, struct hfs_find_data *);
-int hfsplus_cat_write_inode(struct inode *);
-struct inode *hfsplus_new_inode(struct super_block *, umode_t);
-void hfsplus_delete_inode(struct inode *);
+struct inode *hfsplus_new_inode(struct super_block *sb, umode_t mode);
+void hfsplus_delete_inode(struct inode *inode);
+void hfsplus_inode_read_fork(struct inode *inode,
+ struct hfsplus_fork_raw *fork);
+void hfsplus_inode_write_fork(struct inode *inode,
+ struct hfsplus_fork_raw *fork);
+int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd);
+int hfsplus_cat_write_inode(struct inode *inode);
int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
int datasync);
@@ -484,13 +489,17 @@ int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
/* options.c */
-int hfsplus_parse_options(char *, struct hfsplus_sb_info *);
+void hfsplus_fill_defaults(struct hfsplus_sb_info *opts);
int hfsplus_parse_options_remount(char *input, int *force);
-void hfsplus_fill_defaults(struct hfsplus_sb_info *);
-int hfsplus_show_options(struct seq_file *, struct dentry *);
+int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi);
+int hfsplus_show_options(struct seq_file *seq, struct dentry *root);
+
+/* part_tbl.c */
+int hfs_part_find(struct super_block *sb, sector_t *part_start,
+ sector_t *part_size);
/* super.c */
-struct inode *hfsplus_iget(struct super_block *, unsigned long);
+struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino);
void hfsplus_mark_mdb_dirty(struct super_block *sb);
/* tables.c */
@@ -499,23 +508,23 @@ extern u16 hfsplus_decompose_table[];
extern u16 hfsplus_compose_table[];
/* unicode.c */
-int hfsplus_strcasecmp(const struct hfsplus_unistr *,
- const struct hfsplus_unistr *);
-int hfsplus_strcmp(const struct hfsplus_unistr *,
- const struct hfsplus_unistr *);
-int hfsplus_uni2asc(struct super_block *,
- const struct hfsplus_unistr *, char *, int *);
-int hfsplus_asc2uni(struct super_block *,
- struct hfsplus_unistr *, int, const char *, int);
+int hfsplus_strcasecmp(const struct hfsplus_unistr *s1,
+ const struct hfsplus_unistr *s2);
+int hfsplus_strcmp(const struct hfsplus_unistr *s1,
+ const struct hfsplus_unistr *s2);
+int hfsplus_uni2asc(struct super_block *sb, const struct hfsplus_unistr *ustr,
+ char *astr, int *len_p);
+int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr,
+ int max_unistr_len, const char *astr, int len);
int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str);
-int hfsplus_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
- unsigned int len, const char *str, const struct qstr *name);
+int hfsplus_compare_dentry(const struct dentry *parent,
+ const struct dentry *dentry, unsigned int len,
+ const char *str, const struct qstr *name);
/* wrapper.c */
-int hfsplus_read_wrapper(struct super_block *);
-int hfs_part_find(struct super_block *, sector_t *, sector_t *);
-int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
- void *buf, void **data, int rw);
+int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf,
+ void **data, int rw);
+int hfsplus_read_wrapper(struct super_block *sb);
/* time macros */
#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
index 5a126828d85e..8298d0985f81 100644
--- a/fs/hfsplus/hfsplus_raw.h
+++ b/fs/hfsplus/hfsplus_raw.h
@@ -144,6 +144,7 @@ struct hfsplus_vh {
#define HFSPLUS_VOL_NODEID_REUSED (1 << 12)
#define HFSPLUS_VOL_JOURNALED (1 << 13)
#define HFSPLUS_VOL_SOFTLOCK (1 << 15)
+#define HFSPLUS_VOL_UNUSED_NODE_FIX (1 << 31)
/* HFS+ BTree node descriptor */
struct hfs_bnode_desc {
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
index 68537e8b7a09..c90b72ee676d 100644
--- a/fs/hfsplus/options.c
+++ b/fs/hfsplus/options.c
@@ -173,9 +173,8 @@ int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
if (p)
sbi->nls = load_nls(p);
if (!sbi->nls) {
- pr_err("unable to load "
- "nls mapping \"%s\"\n",
- p);
+ pr_err("unable to load nls mapping \"%s\"\n",
+ p);
kfree(p);
return 0;
}
@@ -232,8 +231,8 @@ int hfsplus_show_options(struct seq_file *seq, struct dentry *root)
if (sbi->nls)
seq_printf(seq, ",nls=%s", sbi->nls->charset);
if (test_bit(HFSPLUS_SB_NODECOMPOSE, &sbi->flags))
- seq_printf(seq, ",nodecompose");
+ seq_puts(seq, ",nodecompose");
if (test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
- seq_printf(seq, ",nobarrier");
+ seq_puts(seq, ",nobarrier");
return 0;
}
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index a513d2d36be9..4cf2024b87da 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -131,9 +131,10 @@ static int hfsplus_system_write_inode(struct inode *inode)
hfsplus_inode_write_fork(inode, fork);
if (tree) {
int err = hfs_btree_write(tree);
+
if (err) {
pr_err("b-tree write err: %d, ino %lu\n",
- err, inode->i_ino);
+ err, inode->i_ino);
return err;
}
}
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index 3f999649587f..cc6235671437 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -24,8 +24,8 @@ struct hfsplus_wd {
u16 embed_count;
};
-/*
- * hfsplus_submit_bio - Perfrom block I/O
+/**
+ * hfsplus_submit_bio - Perform block I/O
* @sb: super block of volume for I/O
* @sector: block to read or write, for blocks of HFSPLUS_SECTOR_SIZE bytes
* @buf: buffer for I/O
@@ -231,10 +231,8 @@ reread:
if (blocksize < HFSPLUS_SECTOR_SIZE || ((blocksize - 1) & blocksize))
goto out_free_backup_vhdr;
sbi->alloc_blksz = blocksize;
- sbi->alloc_blksz_shift = 0;
- while ((blocksize >>= 1) != 0)
- sbi->alloc_blksz_shift++;
- blocksize = min(sbi->alloc_blksz, (u32)PAGE_SIZE);
+ sbi->alloc_blksz_shift = ilog2(blocksize);
+ blocksize = min_t(u32, sbi->alloc_blksz, PAGE_SIZE);
/*
* Align block size to block offset.
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index 4e27edc082a4..d98094a9f476 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -8,6 +8,7 @@
#include "hfsplus_fs.h"
#include <linux/posix_acl_xattr.h>
+#include <linux/nls.h>
#include "xattr.h"
#include "acl.h"
@@ -66,10 +67,10 @@ static void hfsplus_init_header_node(struct inode *attr_file,
char *bmp;
u32 used_nodes;
u32 used_bmp_bytes;
- loff_t tmp;
+ u64 tmp;
hfs_dbg(ATTR_MOD, "init_hdr_attr_file: clump %u, node_size %u\n",
- clump_size, node_size);
+ clump_size, node_size);
/* The end of the node contains list of record offsets */
rec_offsets = (__be16 *)(buf + node_size);
@@ -195,7 +196,7 @@ check_attr_tree_state_again:
}
while (hip->alloc_blocks < hip->clump_blocks) {
- err = hfsplus_file_extend(attr_file);
+ err = hfsplus_file_extend(attr_file, false);
if (unlikely(err)) {
pr_err("failed to extend attributes file\n");
goto end_attr_file_creation;
@@ -645,8 +646,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
struct hfs_find_data fd;
u16 key_len = 0;
struct hfsplus_attr_key attr_key;
- char strbuf[HFSPLUS_ATTR_MAX_STRLEN +
- XATTR_MAC_OSX_PREFIX_LEN + 1] = {0};
+ char *strbuf;
int xattr_name_len;
if ((!S_ISREG(inode->i_mode) &&
@@ -666,6 +666,13 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
return err;
}
+ strbuf = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN +
+ XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
+ if (!strbuf) {
+ res = -ENOMEM;
+ goto out;
+ }
+
err = hfsplus_find_attr(inode->i_sb, inode->i_ino, NULL, &fd);
if (err) {
if (err == -ENOENT) {
@@ -692,7 +699,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
if (be32_to_cpu(attr_key.cnid) != inode->i_ino)
goto end_listxattr;
- xattr_name_len = HFSPLUS_ATTR_MAX_STRLEN;
+ xattr_name_len = NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN;
if (hfsplus_uni2asc(inode->i_sb,
(const struct hfsplus_unistr *)&fd.key->attr.key_name,
strbuf, &xattr_name_len)) {
@@ -718,6 +725,8 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
}
end_listxattr:
+ kfree(strbuf);
+out:
hfs_find_exit(&fd);
return res;
}
@@ -797,47 +806,55 @@ end_removexattr:
static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN +
- XATTR_MAC_OSX_PREFIX_LEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
/*
* Don't allow retrieving properly prefixed attributes
* by prepending them with "osx."
*/
if (is_known_namespace(name))
return -EOPNOTSUPP;
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
+ + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
+ strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
+ strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN +
- XATTR_MAC_OSX_PREFIX_LEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
/*
* Don't allow setting properly prefixed attributes
* by prepending them with "osx."
*/
if (is_known_namespace(name))
return -EOPNOTSUPP;
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
+ + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
+ strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
+ strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/hfsplus/xattr_security.c b/fs/hfsplus/xattr_security.c
index 00722765ea79..6ec5e107691f 100644
--- a/fs/hfsplus/xattr_security.c
+++ b/fs/hfsplus/xattr_security.c
@@ -7,6 +7,8 @@
*/
#include <linux/security.h>
+#include <linux/nls.h>
+
#include "hfsplus_fs.h"
#include "xattr.h"
#include "acl.h"
@@ -14,37 +16,43 @@
static int hfsplus_security_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_SECURITY_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_SECURITY_PREFIX);
strcpy(xattr_name + XATTR_SECURITY_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_security_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_SECURITY_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_SECURITY_PREFIX);
strcpy(xattr_name + XATTR_SECURITY_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_security_listxattr(struct dentry *dentry, char *list,
@@ -62,31 +70,30 @@ static int hfsplus_initxattrs(struct inode *inode,
void *fs_info)
{
const struct xattr *xattr;
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t xattr_name_len;
+ char *xattr_name;
int err = 0;
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
for (xattr = xattr_array; xattr->name != NULL; xattr++) {
- xattr_name_len = strlen(xattr->name);
- if (xattr_name_len == 0)
+ if (!strcmp(xattr->name, ""))
continue;
- if (xattr_name_len + XATTR_SECURITY_PREFIX_LEN >
- HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
strcpy(xattr_name, XATTR_SECURITY_PREFIX);
strcpy(xattr_name +
XATTR_SECURITY_PREFIX_LEN, xattr->name);
memset(xattr_name +
- XATTR_SECURITY_PREFIX_LEN + xattr_name_len, 0, 1);
+ XATTR_SECURITY_PREFIX_LEN + strlen(xattr->name), 0, 1);
err = __hfsplus_setxattr(inode, xattr_name,
xattr->value, xattr->value_len, 0);
if (err)
break;
}
+ kfree(xattr_name);
return err;
}
diff --git a/fs/hfsplus/xattr_trusted.c b/fs/hfsplus/xattr_trusted.c
index 426cee277542..3c5f27e4746a 100644
--- a/fs/hfsplus/xattr_trusted.c
+++ b/fs/hfsplus/xattr_trusted.c
@@ -6,43 +6,51 @@
* Handler for trusted extended attributes.
*/
+#include <linux/nls.h>
+
#include "hfsplus_fs.h"
#include "xattr.h"
static int hfsplus_trusted_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_TRUSTED_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_TRUSTED_PREFIX);
strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_trusted_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_TRUSTED_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_TRUSTED_PREFIX);
strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_trusted_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/hfsplus/xattr_user.c b/fs/hfsplus/xattr_user.c
index e34016561ae0..2b625a538b64 100644
--- a/fs/hfsplus/xattr_user.c
+++ b/fs/hfsplus/xattr_user.c
@@ -6,43 +6,51 @@
* Handler for user extended attributes.
*/
+#include <linux/nls.h>
+
#include "hfsplus_fs.h"
#include "xattr.h"
static int hfsplus_user_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_USER_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_USER_PREFIX);
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_user_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_USER_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_USER_PREFIX);
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_user_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c
index 58b5106186d0..f005046e1591 100644
--- a/fs/hpfs/alloc.c
+++ b/fs/hpfs/alloc.c
@@ -316,7 +316,7 @@ void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n)
struct quad_buffer_head qbh;
__le32 *bmp;
struct hpfs_sb_info *sbi = hpfs_sb(s);
- /*printk("2 - ");*/
+ /*pr_info("2 - ");*/
if (!n) return;
if (sec < 0x12) {
hpfs_error(s, "Trying to free reserved sector %08x", sec);
diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c
index 139ef1684d07..8057fe4e6574 100644
--- a/fs/hpfs/buffer.c
+++ b/fs/hpfs/buffer.c
@@ -55,7 +55,7 @@ void *hpfs_map_sector(struct super_block *s, unsigned secno, struct buffer_head
if (bh != NULL)
return bh->b_data;
else {
- printk("HPFS: hpfs_map_sector: read error\n");
+ pr_err("%s(): read error\n", __func__);
return NULL;
}
}
@@ -76,7 +76,7 @@ void *hpfs_get_sector(struct super_block *s, unsigned secno, struct buffer_head
set_buffer_uptodate(bh);
return bh->b_data;
} else {
- printk("HPFS: hpfs_get_sector: getblk failed\n");
+ pr_err("%s(): getblk failed\n", __func__);
return NULL;
}
}
@@ -93,7 +93,7 @@ void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffe
cond_resched();
if (secno & 3) {
- printk("HPFS: hpfs_map_4sectors: unaligned read\n");
+ pr_err("%s(): unaligned read\n", __func__);
return NULL;
}
@@ -112,7 +112,7 @@ void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffe
qbh->data = data = kmalloc(2048, GFP_NOFS);
if (!data) {
- printk("HPFS: hpfs_map_4sectors: out of memory\n");
+ pr_err("%s(): out of memory\n", __func__);
goto bail4;
}
@@ -145,7 +145,7 @@ void *hpfs_get_4sectors(struct super_block *s, unsigned secno,
hpfs_lock_assert(s);
if (secno & 3) {
- printk("HPFS: hpfs_get_4sectors: unaligned read\n");
+ pr_err("%s(): unaligned read\n", __func__);
return NULL;
}
@@ -161,7 +161,7 @@ void *hpfs_get_4sectors(struct super_block *s, unsigned secno,
}
if (!(qbh->data = kmalloc(2048, GFP_NOFS))) {
- printk("HPFS: hpfs_get_4sectors: out of memory\n");
+ pr_err("%s(): out of memory\n", __func__);
goto bail4;
}
return qbh->data;
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 292b1acb9b81..2a8e07425de0 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -36,7 +36,7 @@ static loff_t hpfs_dir_lseek(struct file *filp, loff_t off, int whence)
mutex_lock(&i->i_mutex);
hpfs_lock(s);
- /*printk("dir lseek\n");*/
+ /*pr_info("dir lseek\n");*/
if (new_off == 0 || new_off == 1 || new_off == 11 || new_off == 12 || new_off == 13) goto ok;
pos = ((loff_t) hpfs_de_as_down_as_possible(s, hpfs_inode->i_dno) << 4) + 1;
while (pos != new_off) {
@@ -51,7 +51,7 @@ ok:
mutex_unlock(&i->i_mutex);
return new_off;
fail:
- /*printk("illegal lseek: %016llx\n", new_off);*/
+ /*pr_warn("illegal lseek: %016llx\n", new_off);*/
hpfs_unlock(s);
mutex_unlock(&i->i_mutex);
return -ESPIPE;
@@ -127,7 +127,7 @@ static int hpfs_readdir(struct file *file, struct dir_context *ctx)
if (ctx->pos == 12)
goto out;
if (ctx->pos == 3 || ctx->pos == 4 || ctx->pos == 5) {
- printk("HPFS: warning: pos==%d\n",(int)ctx->pos);
+ pr_err("pos==%d\n", (int)ctx->pos);
goto out;
}
if (ctx->pos == 0) {
diff --git a/fs/hpfs/dnode.c b/fs/hpfs/dnode.c
index 4364b2a02c5d..f36fc010fccb 100644
--- a/fs/hpfs/dnode.c
+++ b/fs/hpfs/dnode.c
@@ -17,7 +17,7 @@ static loff_t get_pos(struct dnode *d, struct hpfs_dirent *fde)
if (de == fde) return ((loff_t) le32_to_cpu(d->self) << 4) | (loff_t)i;
i++;
}
- printk("HPFS: get_pos: not_found\n");
+ pr_info("%s(): not_found\n", __func__);
return ((loff_t)le32_to_cpu(d->self) << 4) | (loff_t)1;
}
@@ -32,7 +32,7 @@ void hpfs_add_pos(struct inode *inode, loff_t *pos)
if (hpfs_inode->i_rddir_off[i] == pos) return;
if (!(i&0x0f)) {
if (!(ppos = kmalloc((i+0x11) * sizeof(loff_t*), GFP_NOFS))) {
- printk("HPFS: out of memory for position list\n");
+ pr_err("out of memory for position list\n");
return;
}
if (hpfs_inode->i_rddir_off) {
@@ -63,7 +63,8 @@ void hpfs_del_pos(struct inode *inode, loff_t *pos)
}
return;
not_f:
- /*printk("HPFS: warning: position pointer %p->%08x not found\n", pos, (int)*pos);*/
+ /*pr_warn("position pointer %p->%08x not found\n",
+ pos, (int)*pos);*/
return;
}
@@ -92,8 +93,11 @@ static void hpfs_pos_ins(loff_t *p, loff_t d, loff_t c)
{
if ((*p & ~0x3f) == (d & ~0x3f) && (*p & 0x3f) >= (d & 0x3f)) {
int n = (*p & 0x3f) + c;
- if (n > 0x3f) printk("HPFS: hpfs_pos_ins: %08x + %d\n", (int)*p, (int)c >> 8);
- else *p = (*p & ~0x3f) | n;
+ if (n > 0x3f)
+ pr_err("%s(): %08x + %d\n",
+ __func__, (int)*p, (int)c >> 8);
+ else
+ *p = (*p & ~0x3f) | n;
}
}
@@ -101,8 +105,11 @@ static void hpfs_pos_del(loff_t *p, loff_t d, loff_t c)
{
if ((*p & ~0x3f) == (d & ~0x3f) && (*p & 0x3f) >= (d & 0x3f)) {
int n = (*p & 0x3f) - c;
- if (n < 1) printk("HPFS: hpfs_pos_ins: %08x - %d\n", (int)*p, (int)c >> 8);
- else *p = (*p & ~0x3f) | n;
+ if (n < 1)
+ pr_err("%s(): %08x - %d\n",
+ __func__, (int)*p, (int)c >> 8);
+ else
+ *p = (*p & ~0x3f) | n;
}
}
@@ -239,12 +246,12 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno,
struct fnode *fnode;
int c1, c2 = 0;
if (!(nname = kmalloc(256, GFP_NOFS))) {
- printk("HPFS: out of memory, can't add to dnode\n");
+ pr_err("out of memory, can't add to dnode\n");
return 1;
}
go_up:
if (namelen >= 256) {
- hpfs_error(i->i_sb, "hpfs_add_to_dnode: namelen == %d", namelen);
+ hpfs_error(i->i_sb, "%s(): namelen == %d", __func__, namelen);
kfree(nd);
kfree(nname);
return 1;
@@ -281,7 +288,7 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno,
not be any error while splitting dnodes, otherwise the
whole directory, not only file we're adding, would
be lost. */
- printk("HPFS: out of memory for dnode splitting\n");
+ pr_err("out of memory for dnode splitting\n");
hpfs_brelse4(&qbh);
kfree(nname);
return 1;
@@ -597,7 +604,7 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
if (!de_next->down) goto endm;
ndown = de_down_pointer(de_next);
if (!(de_cp = kmalloc(le16_to_cpu(de->length), GFP_NOFS))) {
- printk("HPFS: out of memory for dtree balancing\n");
+ pr_err("out of memory for dtree balancing\n");
goto endm;
}
memcpy(de_cp, de, le16_to_cpu(de->length));
@@ -612,7 +619,8 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
hpfs_brelse4(&qbh1);
}
hpfs_add_to_dnode(i, ndown, de_cp->name, de_cp->namelen, de_cp, de_cp->down ? de_down_pointer(de_cp) : 0);
- /*printk("UP-TO-DNODE: %08x (ndown = %08x, down = %08x, dno = %08x)\n", up, ndown, down, dno);*/
+ /*pr_info("UP-TO-DNODE: %08x (ndown = %08x, down = %08x, dno = %08x)\n",
+ up, ndown, down, dno);*/
dno = up;
kfree(de_cp);
goto try_it_again;
@@ -637,15 +645,15 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
if (!dlp && down) {
if (le32_to_cpu(d1->first_free) > 2044) {
if (hpfs_sb(i->i_sb)->sb_chk >= 2) {
- printk("HPFS: warning: unbalanced dnode tree, see hpfs.txt 4 more info\n");
- printk("HPFS: warning: terminating balancing operation\n");
+ pr_err("unbalanced dnode tree, see hpfs.txt 4 more info\n");
+ pr_err("terminating balancing operation\n");
}
hpfs_brelse4(&qbh1);
goto endm;
}
if (hpfs_sb(i->i_sb)->sb_chk >= 2) {
- printk("HPFS: warning: unbalanced dnode tree, see hpfs.txt 4 more info\n");
- printk("HPFS: warning: goin'on\n");
+ pr_err("unbalanced dnode tree, see hpfs.txt 4 more info\n");
+ pr_err("goin'on\n");
}
le16_add_cpu(&del->length, 4);
del->down = 1;
@@ -659,7 +667,7 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
*(__le32 *) ((void *) del + le16_to_cpu(del->length) - 4) = cpu_to_le32(down);
} else goto endm;
if (!(de_cp = kmalloc(le16_to_cpu(de_prev->length), GFP_NOFS))) {
- printk("HPFS: out of memory for dtree balancing\n");
+ pr_err("out of memory for dtree balancing\n");
hpfs_brelse4(&qbh1);
goto endm;
}
@@ -1000,7 +1008,7 @@ struct hpfs_dirent *map_fnode_dirent(struct super_block *s, fnode_secno fno,
int d1, d2 = 0;
name1 = f->name;
if (!(name2 = kmalloc(256, GFP_NOFS))) {
- printk("HPFS: out of memory, can't map dirent\n");
+ pr_err("out of memory, can't map dirent\n");
return NULL;
}
if (f->len <= 15)
diff --git a/fs/hpfs/ea.c b/fs/hpfs/ea.c
index bcaafcd2666a..ce3f98ba993a 100644
--- a/fs/hpfs/ea.c
+++ b/fs/hpfs/ea.c
@@ -51,7 +51,7 @@ static char *get_indirect_ea(struct super_block *s, int ano, secno a, int size)
{
char *ret;
if (!(ret = kmalloc(size + 1, GFP_NOFS))) {
- printk("HPFS: out of memory for EA\n");
+ pr_err("out of memory for EA\n");
return NULL;
}
if (hpfs_ea_read(s, a, ano, 0, size, ret)) {
@@ -139,7 +139,7 @@ char *hpfs_get_ea(struct super_block *s, struct fnode *fnode, char *key, int *si
if (ea_indirect(ea))
return get_indirect_ea(s, ea_in_anode(ea), ea_sec(ea), *size = ea_len(ea));
if (!(ret = kmalloc((*size = ea_valuelen(ea)) + 1, GFP_NOFS))) {
- printk("HPFS: out of memory for EA\n");
+ pr_err("out of memory for EA\n");
return NULL;
}
memcpy(ret, ea_data(ea), ea_valuelen(ea));
@@ -165,7 +165,7 @@ char *hpfs_get_ea(struct super_block *s, struct fnode *fnode, char *key, int *si
if (ea_indirect(ea))
return get_indirect_ea(s, ea_in_anode(ea), ea_sec(ea), *size = ea_len(ea));
if (!(ret = kmalloc((*size = ea_valuelen(ea)) + 1, GFP_NOFS))) {
- printk("HPFS: out of memory for EA\n");
+ pr_err("out of memory for EA\n");
return NULL;
}
if (hpfs_ea_read(s, a, ano, pos + 4 + ea->namelen + 1, ea_valuelen(ea), ret)) {
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index 3ba49c080e42..b63b75fa00e7 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -8,6 +8,11 @@
//#define DBG
//#define DEBUG_LOCKS
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/mutex.h>
#include <linux/pagemap.h>
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
index 50a427313835..7ce4b74234a1 100644
--- a/fs/hpfs/inode.c
+++ b/fs/hpfs/inode.c
@@ -183,7 +183,8 @@ void hpfs_write_inode(struct inode *i)
struct inode *parent;
if (i->i_ino == hpfs_sb(i->i_sb)->sb_root) return;
if (hpfs_inode->i_rddir_off && !atomic_read(&i->i_count)) {
- if (*hpfs_inode->i_rddir_off) printk("HPFS: write_inode: some position still there\n");
+ if (*hpfs_inode->i_rddir_off)
+ pr_err("write_inode: some position still there\n");
kfree(hpfs_inode->i_rddir_off);
hpfs_inode->i_rddir_off = NULL;
}
diff --git a/fs/hpfs/map.c b/fs/hpfs/map.c
index 3aa66ae1031e..442770edcdc7 100644
--- a/fs/hpfs/map.c
+++ b/fs/hpfs/map.c
@@ -65,12 +65,13 @@ unsigned char *hpfs_load_code_page(struct super_block *s, secno cps)
struct code_page_directory *cp = hpfs_map_sector(s, cps, &bh, 0);
if (!cp) return NULL;
if (le32_to_cpu(cp->magic) != CP_DIR_MAGIC) {
- printk("HPFS: Code page directory magic doesn't match (magic = %08x)\n", le32_to_cpu(cp->magic));
+ pr_err("Code page directory magic doesn't match (magic = %08x)\n",
+ le32_to_cpu(cp->magic));
brelse(bh);
return NULL;
}
if (!le32_to_cpu(cp->n_code_pages)) {
- printk("HPFS: n_code_pages == 0\n");
+ pr_err("n_code_pages == 0\n");
brelse(bh);
return NULL;
}
@@ -79,19 +80,19 @@ unsigned char *hpfs_load_code_page(struct super_block *s, secno cps)
brelse(bh);
if (cpi >= 3) {
- printk("HPFS: Code page index out of array\n");
+ pr_err("Code page index out of array\n");
return NULL;
}
if (!(cpd = hpfs_map_sector(s, cpds, &bh, 0))) return NULL;
if (le16_to_cpu(cpd->offs[cpi]) > 0x178) {
- printk("HPFS: Code page index out of sector\n");
+ pr_err("Code page index out of sector\n");
brelse(bh);
return NULL;
}
ptr = (unsigned char *)cpd + le16_to_cpu(cpd->offs[cpi]) + 6;
if (!(cp_table = kmalloc(256, GFP_KERNEL))) {
- printk("HPFS: out of memory for code page table\n");
+ pr_err("out of memory for code page table\n");
brelse(bh);
return NULL;
}
@@ -114,7 +115,7 @@ __le32 *hpfs_load_bitmap_directory(struct super_block *s, secno bmp)
int i;
__le32 *b;
if (!(b = kmalloc(n * 512, GFP_KERNEL))) {
- printk("HPFS: can't allocate memory for bitmap directory\n");
+ pr_err("can't allocate memory for bitmap directory\n");
return NULL;
}
for (i=0;i<n;i++) {
@@ -281,7 +282,9 @@ struct dnode *hpfs_map_dnode(struct super_block *s, unsigned secno,
hpfs_error(s, "dnode %08x does not end with \\377 entry", secno);
goto bail;
}
- if (b == 3) printk("HPFS: warning: unbalanced dnode tree, dnode %08x; see hpfs.txt 4 more info\n", secno);
+ if (b == 3)
+ pr_err("unbalanced dnode tree, dnode %08x; see hpfs.txt 4 more info\n",
+ secno);
}
return dnode;
bail:
diff --git a/fs/hpfs/name.c b/fs/hpfs/name.c
index 9acdf338def0..b00d396d22c6 100644
--- a/fs/hpfs/name.c
+++ b/fs/hpfs/name.c
@@ -56,14 +56,15 @@ unsigned char *hpfs_translate_name(struct super_block *s, unsigned char *from,
unsigned char *to;
int i;
if (hpfs_sb(s)->sb_chk >= 2) if (hpfs_is_name_long(from, len) != lng) {
- printk("HPFS: Long name flag mismatch - name ");
- for (i=0; i<len; i++) printk("%c", from[i]);
- printk(" misidentified as %s.\n", lng ? "short" : "long");
- printk("HPFS: It's nothing serious. It could happen because of bug in OS/2.\nHPFS: Set checks=normal to disable this message.\n");
+ pr_err("Long name flag mismatch - name ");
+ for (i = 0; i < len; i++)
+ pr_cont("%c", from[i]);
+ pr_cont(" misidentified as %s.\n", lng ? "short" : "long");
+ pr_err("It's nothing serious. It could happen because of bug in OS/2.\nSet checks=normal to disable this message.\n");
}
if (!lc) return from;
if (!(to = kmalloc(len, GFP_KERNEL))) {
- printk("HPFS: can't allocate memory for name conversion buffer\n");
+ pr_err("can't allocate memory for name conversion buffer\n");
return from;
}
for (i = 0; i < len; i++) to[i] = locase(hpfs_sb(s)->sb_cp_table,from[i]);
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index 1b39afdd86fd..bdbc2c3080a4 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -404,7 +404,7 @@ again:
d_rehash(dentry);
} else {
struct iattr newattrs;
- /*printk("HPFS: truncating file before delete.\n");*/
+ /*pr_info("truncating file before delete.\n");*/
newattrs.ia_size = 0;
newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
err = notify_change(dentry, &newattrs, NULL);
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index fe3463a43236..7cd00d3a7c9b 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -62,22 +62,26 @@ void hpfs_error(struct super_block *s, const char *fmt, ...)
vsnprintf(err_buf, sizeof(err_buf), fmt, args);
va_end(args);
- printk("HPFS: filesystem error: %s", err_buf);
+ pr_err("filesystem error: %s", err_buf);
if (!hpfs_sb(s)->sb_was_error) {
if (hpfs_sb(s)->sb_err == 2) {
- printk("; crashing the system because you wanted it\n");
+ pr_cont("; crashing the system because you wanted it\n");
mark_dirty(s, 0);
panic("HPFS panic");
} else if (hpfs_sb(s)->sb_err == 1) {
- if (s->s_flags & MS_RDONLY) printk("; already mounted read-only\n");
+ if (s->s_flags & MS_RDONLY)
+ pr_cont("; already mounted read-only\n");
else {
- printk("; remounting read-only\n");
+ pr_cont("; remounting read-only\n");
mark_dirty(s, 0);
s->s_flags |= MS_RDONLY;
}
- } else if (s->s_flags & MS_RDONLY) printk("; going on - but anything won't be destroyed because it's read-only\n");
- else printk("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n");
- } else printk("\n");
+ } else if (s->s_flags & MS_RDONLY)
+ pr_cont("; going on - but anything won't be destroyed because it's read-only\n");
+ else
+ pr_cont("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n");
+ } else
+ pr_cont("\n");
hpfs_sb(s)->sb_was_error = 1;
}
@@ -292,7 +296,7 @@ static int parse_opts(char *opts, kuid_t *uid, kgid_t *gid, umode_t *umask,
if (!opts)
return 1;
- /*printk("Parsing opts: '%s'\n",opts);*/
+ /*pr_info("Parsing opts: '%s'\n",opts);*/
while ((p = strsep(&opts, ",")) != NULL) {
substring_t args[MAX_OPT_ARGS];
@@ -387,7 +391,7 @@ static int parse_opts(char *opts, kuid_t *uid, kgid_t *gid, umode_t *umask,
static inline void hpfs_help(void)
{
- printk("\n\
+ pr_info("\n\
HPFS filesystem options:\n\
help do not mount and display this text\n\
uid=xxx set uid of files that don't have uid specified in eas\n\
@@ -434,7 +438,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
if (!(o = parse_opts(data, &uid, &gid, &umask, &lowercase,
&eas, &chk, &errs, &chkdsk, ×hift))) {
- printk("HPFS: bad mount options.\n");
+ pr_err("bad mount options.\n");
goto out_err;
}
if (o == 2) {
@@ -442,7 +446,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
goto out_err;
}
if (timeshift != sbi->sb_timeshift) {
- printk("HPFS: timeshift can't be changed using remount.\n");
+ pr_err("timeshift can't be changed using remount.\n");
goto out_err;
}
@@ -523,7 +527,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (!(o = parse_opts(options, &uid, &gid, &umask, &lowercase,
&eas, &chk, &errs, &chkdsk, ×hift))) {
- printk("HPFS: bad mount options.\n");
+ pr_err("bad mount options.\n");
goto bail0;
}
if (o==2) {
@@ -542,16 +546,17 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (/*le16_to_cpu(bootblock->magic) != BB_MAGIC
||*/ le32_to_cpu(superblock->magic) != SB_MAGIC
|| le32_to_cpu(spareblock->magic) != SP_MAGIC) {
- if (!silent) printk("HPFS: Bad magic ... probably not HPFS\n");
+ if (!silent)
+ pr_err("Bad magic ... probably not HPFS\n");
goto bail4;
}
/* Check version */
if (!(s->s_flags & MS_RDONLY) &&
superblock->funcversion != 2 && superblock->funcversion != 3) {
- printk("HPFS: Bad version %d,%d. Mount readonly to go around\n",
+ pr_err("Bad version %d,%d. Mount readonly to go around\n",
(int)superblock->version, (int)superblock->funcversion);
- printk("HPFS: please try recent version of HPFS driver at http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi and if it still can't understand this format, contact author - mikulas@artax.karlin.mff.cuni.cz\n");
+ pr_err("please try recent version of HPFS driver at http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi and if it still can't understand this format, contact author - mikulas@artax.karlin.mff.cuni.cz\n");
goto bail4;
}
@@ -597,7 +602,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
/* Check for general fs errors*/
if (spareblock->dirty && !spareblock->old_wrote) {
if (errs == 2) {
- printk("HPFS: Improperly stopped, not mounted\n");
+ pr_err("Improperly stopped, not mounted\n");
goto bail4;
}
hpfs_error(s, "improperly stopped");
@@ -611,22 +616,25 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (spareblock->hotfixes_used || spareblock->n_spares_used) {
if (errs >= 2) {
- printk("HPFS: Hotfixes not supported here, try chkdsk\n");
+ pr_err("Hotfixes not supported here, try chkdsk\n");
mark_dirty(s, 0);
goto bail4;
}
hpfs_error(s, "hotfixes not supported here, try chkdsk");
- if (errs == 0) printk("HPFS: Proceeding, but your filesystem will be probably corrupted by this driver...\n");
- else printk("HPFS: This driver may read bad files or crash when operating on disk with hotfixes.\n");
+ if (errs == 0)
+ pr_err("Proceeding, but your filesystem will be probably corrupted by this driver...\n");
+ else
+ pr_err("This driver may read bad files or crash when operating on disk with hotfixes.\n");
}
if (le32_to_cpu(spareblock->n_dnode_spares) != le32_to_cpu(spareblock->n_dnode_spares_free)) {
if (errs >= 2) {
- printk("HPFS: Spare dnodes used, try chkdsk\n");
+ pr_err("Spare dnodes used, try chkdsk\n");
mark_dirty(s, 0);
goto bail4;
}
hpfs_error(s, "warning: spare dnodes used, try chkdsk");
- if (errs == 0) printk("HPFS: Proceeding, but your filesystem could be corrupted if you delete files or directories\n");
+ if (errs == 0)
+ pr_err("Proceeding, but your filesystem could be corrupted if you delete files or directories\n");
}
if (chk) {
unsigned a;
@@ -645,12 +653,13 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
goto bail4;
}
sbi->sb_dirband_size = a;
- } else printk("HPFS: You really don't want any checks? You are crazy...\n");
+ } else
+ pr_err("You really don't want any checks? You are crazy...\n");
/* Load code page table */
if (le32_to_cpu(spareblock->n_code_pages))
if (!(sbi->sb_cp_table = hpfs_load_code_page(s, le32_to_cpu(spareblock->code_page_dir))))
- printk("HPFS: Warning: code page support is disabled\n");
+ pr_err("code page support is disabled\n");
brelse(bh2);
brelse(bh1);
diff --git a/fs/inode.c b/fs/inode.c
index f96d2a6f88cc..2feb9b69f1be 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -105,7 +105,7 @@ long get_nr_dirty_inodes(void)
* Handle nr_inode sysctl
*/
#ifdef CONFIG_SYSCTL
-int proc_nr_inodes(ctl_table *table, int write,
+int proc_nr_inodes(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
inodes_stat.nr_inodes = get_nr_inodes();
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 2b60ce1996aa..bb9cebc9ca8a 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -75,10 +75,13 @@ void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c)
static int jffs2_garbage_collect_thread(void *_c)
{
struct jffs2_sb_info *c = _c;
+ sigset_t hupmask;
+ siginitset(&hupmask, sigmask(SIGHUP));
allow_signal(SIGKILL);
allow_signal(SIGSTOP);
allow_signal(SIGCONT);
+ allow_signal(SIGHUP);
c->gc_task = current;
complete(&c->gc_thread_start);
@@ -87,7 +90,7 @@ static int jffs2_garbage_collect_thread(void *_c)
set_freezable();
for (;;) {
- allow_signal(SIGHUP);
+ sigprocmask(SIG_UNBLOCK, &hupmask, NULL);
again:
spin_lock(&c->erase_completion_lock);
if (!jffs2_thread_should_wake(c)) {
@@ -95,10 +98,9 @@ static int jffs2_garbage_collect_thread(void *_c)
spin_unlock(&c->erase_completion_lock);
jffs2_dbg(1, "%s(): sleeping...\n", __func__);
schedule();
- } else
+ } else {
spin_unlock(&c->erase_completion_lock);
-
-
+ }
/* Problem - immediately after bootup, the GCD spends a lot
* of time in places like jffs2_kill_fragtree(); so much so
* that userspace processes (like gdm and X) are starved
@@ -150,7 +152,7 @@ static int jffs2_garbage_collect_thread(void *_c)
}
}
/* We don't want SIGHUP to interrupt us. STOP and KILL are OK though. */
- disallow_signal(SIGHUP);
+ sigprocmask(SIG_BLOCK, &hupmask, NULL);
jffs2_dbg(1, "%s(): pass\n", __func__);
if (jffs2_garbage_collect_pass(c) == -ENOSPC) {
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 6bf06a07f3e0..de051cb1f553 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -436,7 +436,7 @@ EXPORT_SYMBOL_GPL(lockd_down);
* Sysctl parameters (same as module parameters, different interface).
*/
-static ctl_table nlm_sysctls[] = {
+static struct ctl_table nlm_sysctls[] = {
{
.procname = "nlm_grace_period",
.data = &nlm_grace_period,
@@ -490,7 +490,7 @@ static ctl_table nlm_sysctls[] = {
{ }
};
-static ctl_table nlm_sysctl_dir[] = {
+static struct ctl_table nlm_sysctl_dir[] = {
{
.procname = "nfs",
.mode = 0555,
@@ -499,7 +499,7 @@ static ctl_table nlm_sysctl_dir[] = {
{ }
};
-static ctl_table nlm_sysctl_root[] = {
+static struct ctl_table nlm_sysctl_root[] = {
{
.procname = "fs",
.mode = 0555,
diff --git a/fs/nfs/nfs4sysctl.c b/fs/nfs/nfs4sysctl.c
index 2628d921b7e3..b6ebe7e445f6 100644
--- a/fs/nfs/nfs4sysctl.c
+++ b/fs/nfs/nfs4sysctl.c
@@ -16,7 +16,7 @@ static const int nfs_set_port_min = 0;
static const int nfs_set_port_max = 65535;
static struct ctl_table_header *nfs4_callback_sysctl_table;
-static ctl_table nfs4_cb_sysctls[] = {
+static struct ctl_table nfs4_cb_sysctls[] = {
{
.procname = "nfs_callback_tcpport",
.data = &nfs_callback_set_tcpport,
@@ -36,7 +36,7 @@ static ctl_table nfs4_cb_sysctls[] = {
{ }
};
-static ctl_table nfs4_cb_sysctl_dir[] = {
+static struct ctl_table nfs4_cb_sysctl_dir[] = {
{
.procname = "nfs",
.mode = 0555,
@@ -45,7 +45,7 @@ static ctl_table nfs4_cb_sysctl_dir[] = {
{ }
};
-static ctl_table nfs4_cb_sysctl_root[] = {
+static struct ctl_table nfs4_cb_sysctl_root[] = {
{
.procname = "fs",
.mode = 0555,
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
index 6b3f2535a3ec..bb6ed810fa6f 100644
--- a/fs/nfs/sysctl.c
+++ b/fs/nfs/sysctl.c
@@ -13,7 +13,7 @@
static struct ctl_table_header *nfs_callback_sysctl_table;
-static ctl_table nfs_cb_sysctls[] = {
+static struct ctl_table nfs_cb_sysctls[] = {
{
.procname = "nfs_mountpoint_timeout",
.data = &nfs_mountpoint_expiry_timeout,
@@ -31,7 +31,7 @@ static ctl_table nfs_cb_sysctls[] = {
{ }
};
-static ctl_table nfs_cb_sysctl_dir[] = {
+static struct ctl_table nfs_cb_sysctl_dir[] = {
{
.procname = "nfs",
.mode = 0555,
@@ -40,7 +40,7 @@ static ctl_table nfs_cb_sysctl_dir[] = {
{ }
};
-static ctl_table nfs_cb_sysctl_root[] = {
+static struct ctl_table nfs_cb_sysctl_root[] = {
{
.procname = "fs",
.mode = 0555,
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 78a2ca3966c3..cc423a30a0c8 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -57,7 +57,7 @@ static struct kmem_cache *inotify_inode_mark_cachep __read_mostly;
static int zero;
-ctl_table inotify_table[] = {
+struct ctl_table inotify_table[] = {
{
.procname = "max_user_instances",
.data = &inotify_max_user_instances,
diff --git a/fs/ntfs/sysctl.c b/fs/ntfs/sysctl.c
index 1927170a35ce..a503156ec15f 100644
--- a/fs/ntfs/sysctl.c
+++ b/fs/ntfs/sysctl.c
@@ -34,7 +34,7 @@
#include "debug.h"
/* Definition of the ntfs sysctl. */
-static ctl_table ntfs_sysctls[] = {
+static struct ctl_table ntfs_sysctls[] = {
{
.procname = "ntfs-debug",
.data = &debug_msgs, /* Data pointer and size. */
@@ -46,7 +46,7 @@ static ctl_table ntfs_sysctls[] = {
};
/* Define the parent directory /proc/sys/fs. */
-static ctl_table sysctls_root[] = {
+static struct ctl_table sysctls_root[] = {
{
.procname = "fs",
.mode = 0555,
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 48cbe4c0b2a5..5d9da22e29b0 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1418,10 +1418,10 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
seq_printf(m, "%08lx %s", vma->vm_start, buffer);
if (file) {
- seq_printf(m, " file=");
+ seq_puts(m, " file=");
seq_path(m, &file->f_path, "\n\t= ");
} else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
- seq_printf(m, " heap");
+ seq_puts(m, " heap");
} else {
pid_t tid = vm_is_stack(task, vma, is_pid);
if (tid != 0) {
@@ -1431,14 +1431,14 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
*/
if (!is_pid || (vma->vm_start <= mm->start_stack &&
vma->vm_end >= mm->start_stack))
- seq_printf(m, " stack");
+ seq_puts(m, " stack");
else
seq_printf(m, " stack:%d", tid);
}
}
if (is_vm_hugetlb_page(vma))
- seq_printf(m, " huge");
+ seq_puts(m, " huge");
walk_page_range(vma->vm_start, vma->vm_end, &walk);
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 6a8e785b29da..382aa890e228 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -42,7 +42,7 @@ static size_t elfnotes_sz;
/* Total size of vmcore file. */
static u64 vmcore_size;
-static struct proc_dir_entry *proc_vmcore = NULL;
+static struct proc_dir_entry *proc_vmcore;
/*
* Returns > 0 for RAM pages, 0 for non-RAM pages, < 0 on error
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 46d269e38706..0a9b72cdfeca 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -18,6 +18,8 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#define pr_fmt(fmt) "pstore: " fmt
+
#include <linux/atomic.h>
#include <linux/types.h>
#include <linux/errno.h>
@@ -224,14 +226,12 @@ static void allocate_buf_for_compression(void)
zlib_inflate_workspacesize());
stream.workspace = kmalloc(size, GFP_KERNEL);
if (!stream.workspace) {
- pr_err("pstore: No memory for compression workspace; "
- "skipping compression\n");
+ pr_err("No memory for compression workspace; skipping compression\n");
kfree(big_oops_buf);
big_oops_buf = NULL;
}
} else {
- pr_err("No memory for uncompressed data; "
- "skipping compression\n");
+ pr_err("No memory for uncompressed data; skipping compression\n");
stream.workspace = NULL;
}
@@ -455,8 +455,7 @@ int pstore_register(struct pstore_info *psi)
add_timer(&pstore_timer);
}
- pr_info("pstore: Registered %s as persistent store backend\n",
- psi->name);
+ pr_info("Registered %s as persistent store backend\n", psi->name);
return 0;
}
@@ -502,8 +501,8 @@ void pstore_get_records(int quiet)
size = unzipped_len;
compressed = false;
} else {
- pr_err("pstore: decompression failed;"
- "returned %d\n", unzipped_len);
+ pr_err("decompression failed;returned %d\n",
+ unzipped_len);
compressed = true;
}
}
@@ -524,8 +523,8 @@ out:
mutex_unlock(&psi->read_mutex);
if (failed)
- printk(KERN_WARNING "pstore: failed to load %d record(s) from '%s'\n",
- failed, psi->name);
+ pr_warn("failed to load %d record(s) from '%s'\n",
+ failed, psi->name);
}
static void pstore_dowork(struct work_struct *work)
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index ff7e3d4df5a1..34a1e5aa848c 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -12,6 +12,8 @@
*
*/
+#define pr_fmt(fmt) "persistent_ram: " fmt
+
#include <linux/device.h>
#include <linux/err.h>
#include <linux/errno.h>
@@ -205,12 +207,10 @@ static void persistent_ram_ecc_old(struct persistent_ram_zone *prz)
size = buffer->data + prz->buffer_size - block;
numerr = persistent_ram_decode_rs8(prz, block, size, par);
if (numerr > 0) {
- pr_devel("persistent_ram: error in block %p, %d\n",
- block, numerr);
+ pr_devel("error in block %p, %d\n", block, numerr);
prz->corrected_bytes += numerr;
} else if (numerr < 0) {
- pr_devel("persistent_ram: uncorrectable error in block %p\n",
- block);
+ pr_devel("uncorrectable error in block %p\n", block);
prz->bad_blocks++;
}
block += prz->ecc_info.block_size;
@@ -257,7 +257,7 @@ static int persistent_ram_init_ecc(struct persistent_ram_zone *prz,
prz->rs_decoder = init_rs(prz->ecc_info.symsize, prz->ecc_info.poly,
0, 1, prz->ecc_info.ecc_size);
if (prz->rs_decoder == NULL) {
- pr_info("persistent_ram: init_rs failed\n");
+ pr_info("init_rs failed\n");
return -EINVAL;
}
@@ -267,10 +267,10 @@ static int persistent_ram_init_ecc(struct persistent_ram_zone *prz,
numerr = persistent_ram_decode_rs8(prz, buffer, sizeof(*buffer),
prz->par_header);
if (numerr > 0) {
- pr_info("persistent_ram: error in header, %d\n", numerr);
+ pr_info("error in header, %d\n", numerr);
prz->corrected_bytes += numerr;
} else if (numerr < 0) {
- pr_info("persistent_ram: uncorrectable error in header\n");
+ pr_info("uncorrectable error in header\n");
prz->bad_blocks++;
}
@@ -317,7 +317,7 @@ void persistent_ram_save_old(struct persistent_ram_zone *prz)
prz->old_log = kmalloc(size, GFP_KERNEL);
}
if (!prz->old_log) {
- pr_err("persistent_ram: failed to allocate buffer\n");
+ pr_err("failed to allocate buffer\n");
return;
}
@@ -396,8 +396,8 @@ static void *persistent_ram_vmap(phys_addr_t start, size_t size)
pages = kmalloc(sizeof(struct page *) * page_count, GFP_KERNEL);
if (!pages) {
- pr_err("%s: Failed to allocate array for %u pages\n", __func__,
- page_count);
+ pr_err("%s: Failed to allocate array for %u pages\n",
+ __func__, page_count);
return NULL;
}
@@ -462,19 +462,17 @@ static int persistent_ram_post_init(struct persistent_ram_zone *prz, u32 sig,
if (prz->buffer->sig == sig) {
if (buffer_size(prz) > prz->buffer_size ||
buffer_start(prz) > buffer_size(prz))
- pr_info("persistent_ram: found existing invalid buffer,"
- " size %zu, start %zu\n",
- buffer_size(prz), buffer_start(prz));
+ pr_info("found existing invalid buffer, size %zu, start %zu\n",
+ buffer_size(prz), buffer_start(prz));
else {
- pr_debug("persistent_ram: found existing buffer,"
- " size %zu, start %zu\n",
- buffer_size(prz), buffer_start(prz));
+ pr_debug("found existing buffer, size %zu, start %zu\n",
+ buffer_size(prz), buffer_start(prz));
persistent_ram_save_old(prz);
return 0;
}
} else {
- pr_debug("persistent_ram: no valid data in buffer"
- " (sig = 0x%08x)\n", prz->buffer->sig);
+ pr_debug("no valid data in buffer (sig = 0x%08x)\n",
+ prz->buffer->sig);
}
prz->buffer->sig = sig;
@@ -509,7 +507,7 @@ struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
prz = kzalloc(sizeof(struct persistent_ram_zone), GFP_KERNEL);
if (!prz) {
- pr_err("persistent_ram: failed to allocate persistent ram zone\n");
+ pr_err("failed to allocate persistent ram zone\n");
goto err;
}
diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index dc9a6829f7c6..1bcffeab713c 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -142,7 +142,6 @@ static int scan_bitmap_block(struct reiserfs_transaction_handle *th,
int org = *beg;
BUG_ON(!th->t_trans_id);
-
RFALSE(bmap_n >= reiserfs_bmap_count(s), "Bitmap %u is out of "
"range (0..%u)", bmap_n, reiserfs_bmap_count(s) - 1);
PROC_INFO_INC(s, scan_bitmap.bmap);
@@ -321,7 +320,6 @@ static int scan_bitmap(struct reiserfs_transaction_handle *th,
unsigned int off_max = s->s_blocksize << 3;
BUG_ON(!th->t_trans_id);
-
PROC_INFO_INC(s, scan_bitmap.call);
if (SB_FREE_BLOCKS(s) <= 0)
return 0; // No point in looking for more free blocks
@@ -388,9 +386,7 @@ static void _reiserfs_free_block(struct reiserfs_transaction_handle *th,
unsigned int nr, offset;
BUG_ON(!th->t_trans_id);
-
PROC_INFO_INC(s, free_block);
-
rs = SB_DISK_SUPER_BLOCK(s);
sbh = SB_BUFFER_WITH_SB(s);
apbi = SB_AP_BITMAP(s);
@@ -435,8 +431,8 @@ void reiserfs_free_block(struct reiserfs_transaction_handle *th,
int for_unformatted)
{
struct super_block *s = th->t_super;
- BUG_ON(!th->t_trans_id);
+ BUG_ON(!th->t_trans_id);
RFALSE(!s, "vs-4061: trying to free block on nonexistent device");
if (!is_reusable(s, block, 1))
return;
@@ -471,6 +467,7 @@ static void __discard_prealloc(struct reiserfs_transaction_handle *th,
unsigned long save = ei->i_prealloc_block;
int dirty = 0;
struct inode *inode = &ei->vfs_inode;
+
BUG_ON(!th->t_trans_id);
#ifdef CONFIG_REISERFS_CHECK
if (ei->i_prealloc_count < 0)
@@ -494,6 +491,7 @@ void reiserfs_discard_prealloc(struct reiserfs_transaction_handle *th,
struct inode *inode)
{
struct reiserfs_inode_info *ei = REISERFS_I(inode);
+
BUG_ON(!th->t_trans_id);
if (ei->i_prealloc_count)
__discard_prealloc(th, ei);
@@ -504,7 +502,6 @@ void reiserfs_discard_all_prealloc(struct reiserfs_transaction_handle *th)
struct list_head *plist = &SB_JOURNAL(th->t_super)->j_prealloc_list;
BUG_ON(!th->t_trans_id);
-
while (!list_empty(plist)) {
struct reiserfs_inode_info *ei;
ei = list_entry(plist->next, struct reiserfs_inode_info,
@@ -562,7 +559,7 @@ int reiserfs_parse_alloc_options(struct super_block *s, char *options)
if (!strcmp(this_char, "displacing_new_packing_localities")) {
SET_OPTION(displacing_new_packing_localities);
continue;
- };
+ }
if (!strcmp(this_char, "old_hashed_relocation")) {
SET_OPTION(old_hashed_relocation);
@@ -729,6 +726,7 @@ void show_alloc_options(struct seq_file *seq, struct super_block *s)
static inline void new_hashed_relocation(reiserfs_blocknr_hint_t * hint)
{
char *hash_in;
+
if (hint->formatted_node) {
hash_in = (char *)&hint->key.k_dir_id;
} else {
@@ -757,6 +755,7 @@ static void dirid_groups(reiserfs_blocknr_hint_t * hint)
__u32 dirid = 0;
int bm = 0;
struct super_block *sb = hint->th->t_super;
+
if (hint->inode)
dirid = le32_to_cpu(INODE_PKEY(hint->inode)->k_dir_id);
else if (hint->formatted_node)
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index b14706a05d52..615cd9ab7940 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -228,10 +228,10 @@ const struct reiserfs_key MIN_KEY = { 0, 0, {{0, 0},} };
/* Maximal possible key. It is never in the tree. */
static const struct reiserfs_key MAX_KEY = {
- __constant_cpu_to_le32(0xffffffff),
- __constant_cpu_to_le32(0xffffffff),
- {{__constant_cpu_to_le32(0xffffffff),
- __constant_cpu_to_le32(0xffffffff)},}
+ cpu_to_le32(0xffffffff),
+ cpu_to_le32(0xffffffff),
+ {{cpu_to_le32(0xffffffff),
+ cpu_to_le32(0xffffffff)},}
};
/* Get delimiting key of the buffer by looking for it in the buffers in the path, starting from the bottom
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 0ab1de4b39a5..7bc20809c99e 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -24,7 +24,7 @@
#define INVBLOCK ((u64)-1L)
-static u64 ufs_add_fragments(struct inode *, u64, unsigned, unsigned, int *);
+static u64 ufs_add_fragments(struct inode *, u64, unsigned, unsigned);
static u64 ufs_alloc_fragments(struct inode *, unsigned, u64, unsigned, int *);
static u64 ufs_alloccg_block(struct inode *, struct ufs_cg_private_info *, u64, int *);
static u64 ufs_bitmap_search (struct super_block *, struct ufs_cg_private_info *, u64, unsigned);
@@ -52,7 +52,7 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
if (ufs_fragnum(fragment) + count > uspi->s_fpg)
ufs_error (sb, "ufs_free_fragments", "internal error");
- mutex_lock(&UFS_SB(sb)->s_lock);
+ lock_ufs(sb);
cgno = ufs_dtog(uspi, fragment);
bit = ufs_dtogd(uspi, fragment);
@@ -116,12 +116,12 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
ubh_sync_block(UCPI_UBH(ucpi));
ufs_mark_sb_dirty(sb);
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
UFSD("EXIT\n");
return;
failed:
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
UFSD("EXIT (FAILED)\n");
return;
}
@@ -151,7 +151,7 @@ void ufs_free_blocks(struct inode *inode, u64 fragment, unsigned count)
goto failed;
}
- mutex_lock(&UFS_SB(sb)->s_lock);
+ lock_ufs(sb);
do_more:
overflow = 0;
@@ -211,12 +211,12 @@ do_more:
}
ufs_mark_sb_dirty(sb);
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
UFSD("EXIT\n");
return;
failed_unlock:
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
failed:
UFSD("EXIT (FAILED)\n");
return;
@@ -357,7 +357,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
usb1 = ubh_get_usb_first(uspi);
*err = -ENOSPC;
- mutex_lock(&UFS_SB(sb)->s_lock);
+ lock_ufs(sb);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (count + ufs_fragnum(fragment) > uspi->s_fpb) {
@@ -378,19 +378,19 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
"fragment %llu, tmp %llu\n",
(unsigned long long)fragment,
(unsigned long long)tmp);
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
return INVBLOCK;
}
if (fragment < UFS_I(inode)->i_lastfrag) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
return 0;
}
}
else {
if (tmp) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
return 0;
}
}
@@ -399,7 +399,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
* There is not enough space for user on the device
*/
if (!capable(CAP_SYS_RESOURCE) && ufs_freespace(uspi, UFS_MINFREE) <= 0) {
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
UFSD("EXIT (FAILED)\n");
return 0;
}
@@ -424,7 +424,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
ufs_clear_frags(inode, result + oldcount,
newcount - oldcount, locked_page != NULL);
}
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@@ -432,14 +432,14 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
/*
* resize block
*/
- result = ufs_add_fragments (inode, tmp, oldcount, newcount, err);
+ result = ufs_add_fragments(inode, tmp, oldcount, newcount);
if (result) {
*err = 0;
UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
fragment + count);
ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
locked_page != NULL);
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@@ -477,7 +477,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
*err = 0;
UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
fragment + count);
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
if (newcount < request)
ufs_free_fragments (inode, result + newcount, request - newcount);
ufs_free_fragments (inode, tmp, oldcount);
@@ -485,13 +485,13 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
return result;
}
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
UFSD("EXIT (FAILED)\n");
return 0;
}
static u64 ufs_add_fragments(struct inode *inode, u64 fragment,
- unsigned oldcount, unsigned newcount, int *err)
+ unsigned oldcount, unsigned newcount)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 98f7211599ff..a9cc75ffa925 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -69,11 +69,11 @@ void ufs_free_inode (struct inode * inode)
ino = inode->i_ino;
- mutex_lock(&UFS_SB(sb)->s_lock);
+ lock_ufs(sb);
if (!((ino > 1) && (ino < (uspi->s_ncg * uspi->s_ipg )))) {
ufs_warning(sb, "ufs_free_inode", "reserved inode or nonexistent inode %u\n", ino);
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
return;
}
@@ -81,7 +81,7 @@ void ufs_free_inode (struct inode * inode)
bit = ufs_inotocgoff (ino);
ucpi = ufs_load_cylinder (sb, cg);
if (!ucpi) {
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
return;
}
ucg = ubh_get_ucg(UCPI_UBH(ucpi));
@@ -115,7 +115,7 @@ void ufs_free_inode (struct inode * inode)
ubh_sync_block(UCPI_UBH(ucpi));
ufs_mark_sb_dirty(sb);
- mutex_unlock(&UFS_SB(sb)->s_lock);
+ unlock_ufs(sb);
UFSD("EXIT\n");
}
@@ -193,7 +193,7 @@ struct inode *ufs_new_inode(struct inode *dir, umode_t mode)
sbi = UFS_SB(sb);
uspi = sbi->s_uspi;
- mutex_lock(&sbi->s_lock);
+ lock_ufs(sb);
/*
* Try to place the inode in its parent directory
@@ -328,21 +328,20 @@ cg_found:
sync_dirty_buffer(bh);
brelse(bh);
}
-
- mutex_unlock(&sbi->s_lock);
+ unlock_ufs(sb);
UFSD("allocating inode %lu\n", inode->i_ino);
UFSD("EXIT\n");
return inode;
fail_remove_inode:
- mutex_unlock(&sbi->s_lock);
+ unlock_ufs(sb);
clear_nlink(inode);
iput(inode);
UFSD("EXIT (FAILED): err %d\n", err);
return ERR_PTR(err);
failed:
- mutex_unlock(&sbi->s_lock);
+ unlock_ufs(sb);
make_bad_inode(inode);
iput (inode);
UFSD("EXIT (FAILED): err %d\n", err);
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index c1183f9f69dc..b879f1ba3439 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -697,7 +697,6 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
unsigned flags;
lock_ufs(sb);
- mutex_lock(&UFS_SB(sb)->s_lock);
UFSD("ENTER\n");
@@ -715,7 +714,6 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
ufs_put_cstotal(sb);
UFSD("EXIT\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
@@ -760,6 +758,7 @@ static void ufs_put_super(struct super_block *sb)
ubh_brelse_uspi (sbi->s_uspi);
kfree (sbi->s_uspi);
+ mutex_destroy(&sbi->mutex);
kfree (sbi);
sb->s_fs_info = NULL;
UFSD("EXIT\n");
@@ -786,6 +785,14 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
flags = 0;
UFSD("ENTER\n");
+
+#ifndef CONFIG_UFS_FS_WRITE
+ if (!(sb->s_flags & MS_RDONLY)) {
+ printk("ufs was compiled with read-only support, "
+ "can't be mounted as read-write\n");
+ return -EROFS;
+ }
+#endif
sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL);
if (!sbi)
@@ -795,15 +802,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));
-#ifndef CONFIG_UFS_FS_WRITE
- if (!(sb->s_flags & MS_RDONLY)) {
- printk("ufs was compiled with read-only support, "
- "can't be mounted as read-write\n");
- goto failed;
- }
-#endif
mutex_init(&sbi->mutex);
- mutex_init(&sbi->s_lock);
spin_lock_init(&sbi->work_lock);
INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
/*
@@ -1257,6 +1256,7 @@ magic_found:
return 0;
failed:
+ mutex_destroy(&sbi->mutex);
if (ubh)
ubh_brelse_uspi (uspi);
kfree (uspi);
@@ -1280,7 +1280,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
sync_filesystem(sb);
lock_ufs(sb);
- mutex_lock(&UFS_SB(sb)->s_lock);
uspi = UFS_SB(sb)->s_uspi;
flags = UFS_SB(sb)->s_flags;
usb1 = ubh_get_usb_first(uspi);
@@ -1294,7 +1293,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
new_mount_opt = 0;
ufs_set_opt (new_mount_opt, ONERROR_LOCK);
if (!ufs_parse_options (data, &new_mount_opt)) {
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
@@ -1302,14 +1300,12 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
new_mount_opt |= ufstype;
} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
printk("ufstype can't be changed during remount\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
UFS_SB(sb)->s_mount_opt = new_mount_opt;
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}
@@ -1334,7 +1330,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
#ifndef CONFIG_UFS_FS_WRITE
printk("ufs was compiled with read-only support, "
"can't be mounted as read-write\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
#else
@@ -1344,13 +1339,11 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
ufstype != UFS_MOUNT_UFSTYPE_SUNx86 &&
ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
printk("this ufstype is read-only supported\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if (!ufs_read_cylinder_structures(sb)) {
printk("failed during remounting\n");
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EPERM;
}
@@ -1358,7 +1351,6 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
#endif
}
UFS_SB(sb)->s_mount_opt = new_mount_opt;
- mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index ff2c15ab81aa..343e6fc571e5 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -24,7 +24,6 @@ struct ufs_sb_info {
int work_queued; /* non-zero if the delayed work is queued */
struct delayed_work sync_work; /* FS sync delayed work */
spinlock_t work_lock; /* protects sync_work and work_queued */
- struct mutex s_lock;
};
struct ufs_inode_info {
diff --git a/include/asm-generic/ioctl.h b/include/asm-generic/ioctl.h
index d17295b290fa..297fb0d7cd6c 100644
--- a/include/asm-generic/ioctl.h
+++ b/include/asm-generic/ioctl.h
@@ -3,10 +3,15 @@
#include <uapi/asm-generic/ioctl.h>
+#ifdef __CHECKER__
+#define _IOC_TYPECHECK(t) (sizeof(t))
+#else
/* provoke compile error for invalid uses of size argument */
extern unsigned int __invalid_size_argument_for_IOC;
#define _IOC_TYPECHECK(t) \
((sizeof(t) == sizeof(t[1]) && \
sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
sizeof(t) : __invalid_size_argument_for_IOC)
+#endif
+
#endif /* _ASM_GENERIC_IOCTL_H */
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 81887120395c..95978ad7fcdd 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -256,7 +256,6 @@ enum cpuhp_state {
};
void cpu_startup_entry(enum cpuhp_state state);
-void cpu_idle(void);
void cpu_idle_poll_ctrl(bool enable);
diff --git a/include/linux/idr.h b/include/linux/idr.h
index 6af3400b9b2f..013fd9bc4cb6 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -29,21 +29,24 @@
struct idr_layer {
int prefix; /* the ID prefix of this idr_layer */
- DECLARE_BITMAP(bitmap, IDR_SIZE); /* A zero bit means "space here" */
+ int layer; /* distance from leaf */
struct idr_layer __rcu *ary[1<<IDR_BITS];
int count; /* When zero, we can release it */
- int layer; /* distance from leaf */
- struct rcu_head rcu_head;
+ union {
+ /* A zero bit means "space here" */
+ DECLARE_BITMAP(bitmap, IDR_SIZE);
+ struct rcu_head rcu_head;
+ };
};
struct idr {
struct idr_layer __rcu *hint; /* the last layer allocated from */
struct idr_layer __rcu *top;
- struct idr_layer *id_free;
int layers; /* only valid w/o concurrent changes */
- int id_free_cnt;
int cur; /* current pos for cyclic allocation */
spinlock_t lock;
+ int id_free_cnt;
+ struct idr_layer *id_free;
};
#define IDR_INIT(name) \
diff --git a/include/linux/key.h b/include/linux/key.h
index 80d677483e31..3ae45f09589b 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -332,7 +332,7 @@ do { \
} while (0)
#ifdef CONFIG_SYSCTL
-extern ctl_table key_sysctls[];
+extern struct ctl_table key_sysctls[];
#endif
/*
* the userspace interface
diff --git a/include/linux/kmemleak.h b/include/linux/kmemleak.h
index 5bb424659c04..057e95971014 100644
--- a/include/linux/kmemleak.h
+++ b/include/linux/kmemleak.h
@@ -30,6 +30,7 @@ extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size) __ref;
extern void kmemleak_free(const void *ptr) __ref;
extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
extern void kmemleak_free_percpu(const void __percpu *ptr) __ref;
+extern void kmemleak_update_trace(const void *ptr) __ref;
extern void kmemleak_not_leak(const void *ptr) __ref;
extern void kmemleak_ignore(const void *ptr) __ref;
extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref;
@@ -83,6 +84,9 @@ static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags)
static inline void kmemleak_free_percpu(const void __percpu *ptr)
{
}
+static inline void kmemleak_update_trace(const void *ptr)
+{
+}
static inline void kmemleak_not_leak(const void *ptr)
{
}
diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
index 2f4e957af656..433e0c74d643 100644
--- a/include/linux/mc146818rtc.h
+++ b/include/linux/mc146818rtc.h
@@ -31,6 +31,10 @@ struct cmos_rtc_board_info {
void (*wake_on)(struct device *dev);
void (*wake_off)(struct device *dev);
+ u32 flags;
+#define CMOS_RTC_FLAGS_NOFREQ (1 << 0)
+ int address_space;
+
u8 rtc_day_alarm; /* zero, or register index */
u8 rtc_mon_alarm; /* zero, or register index */
u8 rtc_century; /* zero, or register index */
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 07d0df6bf768..077904c8b70d 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -5,6 +5,7 @@
#include <linux/sched.h> /* For struct task_struct. */
#include <linux/err.h> /* for IS_ERR_VALUE */
#include <linux/bug.h> /* For BUG_ON. */
+#include <linux/pid_namespace.h> /* For task_active_pid_ns. */
#include <uapi/linux/ptrace.h>
/*
@@ -128,6 +129,37 @@ static inline void ptrace_event(int event, unsigned long message)
}
}
+/**
+ * ptrace_event_pid - possibly stop for a ptrace event notification
+ * @event: %PTRACE_EVENT_* value to report
+ * @pid: process identifier for %PTRACE_GETEVENTMSG to return
+ *
+ * Check whether @event is enabled and, if so, report @event and @pid
+ * to the ptrace parent. @pid is reported as the pid_t seen from the
+ * the ptrace parent's pid namespace.
+ *
+ * Called without locks.
+ */
+static inline void ptrace_event_pid(int event, struct pid *pid)
+{
+ /*
+ * FIXME: There's a potential race if a ptracer in a different pid
+ * namespace than parent attaches between computing message below and
+ * when we acquire tasklist_lock in ptrace_stop(). If this happens,
+ * the ptracer will get a bogus pid from PTRACE_GETEVENTMSG.
+ */
+ unsigned long message = 0;
+ struct pid_namespace *ns;
+
+ rcu_read_lock();
+ ns = task_active_pid_ns(rcu_dereference(current->parent));
+ if (ns)
+ message = pid_nr_ns(pid, ns);
+ rcu_read_unlock();
+
+ ptrace_event(event, message);
+}
+
/**
* ptrace_init_task - initialize ptrace state for a new child
* @child: new child task
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8fcd0e6098d9..ea74596014a2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2414,9 +2414,6 @@ extern void flush_itimer_signals(void);
extern void do_group_exit(int);
-extern int allow_signal(int);
-extern int disallow_signal(int);
-
extern int do_execve(struct filename *,
const char __user * const __user *,
const char __user * const __user *);
diff --git a/include/linux/shm.h b/include/linux/shm.h
index 1e2cd2e6b540..57d77709fbe2 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -3,9 +3,8 @@
#include <asm/page.h>
#include <uapi/linux/shm.h>
-
-#define SHMALL (SHMMAX/PAGE_SIZE*(SHMMNI/16)) /* max shm system wide (pages) */
#include <asm/shmparam.h>
+
struct shmid_kernel /* private to the kernel */
{
struct kern_ipc_perm shm_perm;
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 2ac423bdb676..c9e65360c49a 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -63,11 +63,6 @@ static inline int sigismember(sigset_t *set, int _sig)
return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
}
-static inline int sigfindinword(unsigned long word)
-{
- return ffz(~word);
-}
-
#endif /* __HAVE_ARCH_SIG_BITOPS */
static inline int sigisemptyset(sigset_t *set)
@@ -289,6 +284,22 @@ extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka,
extern void signal_setup_done(int failed, struct ksignal *ksig, int stepping);
extern void signal_delivered(int sig, siginfo_t *info, struct k_sigaction *ka, struct pt_regs *regs, int stepping);
extern void exit_signals(struct task_struct *tsk);
+extern void kernel_sigaction(int, __sighandler_t);
+
+static inline void allow_signal(int sig)
+{
+ /*
+ * Kernel threads handle their own signals. Let the signal code
+ * know it'll be handled, so that they don't get converted to
+ * SIGKILL or just silently dropped.
+ */
+ kernel_sigaction(sig, (__force __sighandler_t)2);
+}
+
+static inline void disallow_signal(int sig)
+{
+ kernel_sigaction(sig, SIG_IGN);
+}
/*
* Eventually that'll replace get_signal_to_deliver(); macro for now,
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 633f5edd7470..34347f26be9b 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -13,8 +13,6 @@
#include <linux/init.h>
#include <linux/llist.h>
-extern void cpu_idle(void);
-
typedef void (*smp_call_func_t)(void *info);
struct call_single_data {
struct llist_node llist;
diff --git a/include/uapi/linux/shm.h b/include/uapi/linux/shm.h
index 78b69413f582..1fbf24ea37fd 100644
--- a/include/uapi/linux/shm.h
+++ b/include/uapi/linux/shm.h
@@ -8,19 +8,20 @@
#endif
/*
- * SHMMAX, SHMMNI and SHMALL are upper limits are defaults which can
- * be increased by sysctl
+ * SHMMNI, SHMMAX and SHMALL are default upper limits which can be
+ * modified by sysctl. The SHMMAX and SHMALL values have been chosen to
+ * be as large possible without facilitating scenarios where userspace
+ * causes overflows when adjusting the limits via operations of the form
+ * "retrieve current limit; add X; update limit". It is therefore not
+ * advised to make SHMMAX and SHMALL any larger. These limits are
+ * suitable for both 32 and 64-bit systems.
*/
-
-#define SHMMAX 0x2000000 /* max shared seg size (bytes) */
#define SHMMIN 1 /* min shared seg size (bytes) */
#define SHMMNI 4096 /* max num of segs system wide */
-#ifndef __KERNEL__
-#define SHMALL (SHMMAX/getpagesize()*(SHMMNI/16))
-#endif
+#define SHMMAX (ULONG_MAX - (1UL << 24)) /* max shared seg size (bytes) */
+#define SHMALL (ULONG_MAX - (1UL << 24)) /* max shm system wide (pages) */
#define SHMSEG SHMMNI /* max shared segs per process */
-
/* Obsolete, used only for backwards compatibility and libc5 compiles */
struct shmid_ds {
struct ipc_perm shm_perm; /* operation perms */
diff --git a/ipc/compat.c b/ipc/compat.c
index 45d035d4cedc..b5ef4f7946dc 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -30,7 +30,7 @@
#include <linux/ptrace.h>
#include <linux/mutex.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include "util.h"
diff --git a/ipc/compat_mq.c b/ipc/compat_mq.c
index 90d29f59cac6..ef6f91cc4490 100644
--- a/ipc/compat_mq.c
+++ b/ipc/compat_mq.c
@@ -12,7 +12,7 @@
#include <linux/mqueue.h>
#include <linux/syscalls.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
struct compat_mq_attr {
compat_long_t mq_flags; /* message queue flags */
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 998d31b230f1..c3f0326e98db 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -18,7 +18,7 @@
#include <linux/msg.h>
#include "util.h"
-static void *get_ipc(ctl_table *table)
+static void *get_ipc(struct ctl_table *table)
{
char *which = table->data;
struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns;
@@ -27,7 +27,7 @@ static void *get_ipc(ctl_table *table)
}
#ifdef CONFIG_PROC_SYSCTL
-static int proc_ipc_dointvec(ctl_table *table, int write,
+static int proc_ipc_dointvec(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
@@ -38,7 +38,7 @@ static int proc_ipc_dointvec(ctl_table *table, int write,
return proc_dointvec(&ipc_table, write, buffer, lenp, ppos);
}
-static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
+static int proc_ipc_dointvec_minmax(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
@@ -49,7 +49,7 @@ static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
return proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos);
}
-static int proc_ipc_dointvec_minmax_orphans(ctl_table *table, int write,
+static int proc_ipc_dointvec_minmax_orphans(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ipc_namespace *ns = current->nsproxy->ipc_ns;
@@ -62,7 +62,7 @@ static int proc_ipc_dointvec_minmax_orphans(ctl_table *table, int write,
return err;
}
-static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
+static int proc_ipc_callback_dointvec_minmax(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
@@ -85,7 +85,7 @@ static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
return rc;
}
-static int proc_ipc_doulongvec_minmax(ctl_table *table, int write,
+static int proc_ipc_doulongvec_minmax(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
@@ -119,7 +119,7 @@ static void ipc_auto_callback(int val)
}
}
-static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write,
+static int proc_ipcauto_dointvec_minmax(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table ipc_table;
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
index 5bb8bfe67149..68d4e953762c 100644
--- a/ipc/mq_sysctl.c
+++ b/ipc/mq_sysctl.c
@@ -14,7 +14,7 @@
#include <linux/sysctl.h>
#ifdef CONFIG_PROC_SYSCTL
-static void *get_mq(ctl_table *table)
+static void *get_mq(struct ctl_table *table)
{
char *which = table->data;
struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns;
@@ -22,7 +22,7 @@ static void *get_mq(ctl_table *table)
return which;
}
-static int proc_mq_dointvec(ctl_table *table, int write,
+static int proc_mq_dointvec(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table mq_table;
@@ -32,7 +32,7 @@ static int proc_mq_dointvec(ctl_table *table, int write,
return proc_dointvec(&mq_table, write, buffer, lenp, ppos);
}
-static int proc_mq_dointvec_minmax(ctl_table *table, int write,
+static int proc_mq_dointvec_minmax(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table mq_table;
@@ -53,7 +53,7 @@ static int msg_max_limit_max = HARD_MSGMAX;
static int msg_maxsize_limit_min = MIN_MSGSIZEMAX;
static int msg_maxsize_limit_max = HARD_MSGSIZEMAX;
-static ctl_table mq_sysctls[] = {
+static struct ctl_table mq_sysctls[] = {
{
.procname = "queues_max",
.data = &init_ipc_ns.mq_queues_max,
@@ -100,7 +100,7 @@ static ctl_table mq_sysctls[] = {
{}
};
-static ctl_table mq_sysctl_dir[] = {
+static struct ctl_table mq_sysctl_dir[] = {
{
.procname = "mqueue",
.mode = 0555,
@@ -109,7 +109,7 @@ static ctl_table mq_sysctl_dir[] = {
{}
};
-static ctl_table mq_sysctl_root[] = {
+static struct ctl_table mq_sysctl_root[] = {
{
.procname = "fs",
.mode = 0555,
diff --git a/ipc/msg.c b/ipc/msg.c
index 649853105a5d..c5d8e3749985 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -39,12 +39,10 @@
#include <linux/ipc_namespace.h>
#include <asm/current.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include "util.h"
-/*
- * one msg_receiver structure for each sleeping receiver:
- */
+/* one msg_receiver structure for each sleeping receiver */
struct msg_receiver {
struct list_head r_list;
struct task_struct *r_tsk;
@@ -53,6 +51,12 @@ struct msg_receiver {
long r_msgtype;
long r_maxsize;
+ /*
+ * Mark r_msg volatile so that the compiler
+ * does not try to get smart and optimize
+ * it. We rely on this for the lockless
+ * receive algorithm.
+ */
struct msg_msg *volatile r_msg;
};
@@ -70,75 +74,6 @@ struct msg_sender {
#define msg_ids(ns) ((ns)->ids[IPC_MSG_IDS])
-static void freeque(struct ipc_namespace *, struct kern_ipc_perm *);
-static int newque(struct ipc_namespace *, struct ipc_params *);
-#ifdef CONFIG_PROC_FS
-static int sysvipc_msg_proc_show(struct seq_file *s, void *it);
-#endif
-
-/*
- * Scale msgmni with the available lowmem size: the memory dedicated to msg
- * queues should occupy at most 1/MSG_MEM_SCALE of lowmem.
- * Also take into account the number of nsproxies created so far.
- * This should be done staying within the (MSGMNI , IPCMNI/nr_ipc_ns) range.
- */
-void recompute_msgmni(struct ipc_namespace *ns)
-{
- struct sysinfo i;
- unsigned long allowed;
- int nb_ns;
-
- si_meminfo(&i);
- allowed = (((i.totalram - i.totalhigh) / MSG_MEM_SCALE) * i.mem_unit)
- / MSGMNB;
- nb_ns = atomic_read(&nr_ipc_ns);
- allowed /= nb_ns;
-
- if (allowed < MSGMNI) {
- ns->msg_ctlmni = MSGMNI;
- return;
- }
-
- if (allowed > IPCMNI / nb_ns) {
- ns->msg_ctlmni = IPCMNI / nb_ns;
- return;
- }
-
- ns->msg_ctlmni = allowed;
-}
-
-void msg_init_ns(struct ipc_namespace *ns)
-{
- ns->msg_ctlmax = MSGMAX;
- ns->msg_ctlmnb = MSGMNB;
-
- recompute_msgmni(ns);
-
- atomic_set(&ns->msg_bytes, 0);
- atomic_set(&ns->msg_hdrs, 0);
- ipc_init_ids(&ns->ids[IPC_MSG_IDS]);
-}
-
-#ifdef CONFIG_IPC_NS
-void msg_exit_ns(struct ipc_namespace *ns)
-{
- free_ipcs(ns, &msg_ids(ns), freeque);
- idr_destroy(&ns->ids[IPC_MSG_IDS].ipcs_idr);
-}
-#endif
-
-void __init msg_init(void)
-{
- msg_init_ns(&init_ipc_ns);
-
- printk(KERN_INFO "msgmni has been set to %d\n",
- init_ipc_ns.msg_ctlmni);
-
- ipc_init_proc_interface("sysvipc/msg",
- " key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n",
- IPC_MSG_IDS, sysvipc_msg_proc_show);
-}
-
static inline struct msg_queue *msq_obtain_object(struct ipc_namespace *ns, int id)
{
struct kern_ipc_perm *ipcp = ipc_obtain_object(&msg_ids(ns), id);
@@ -227,7 +162,7 @@ static int newque(struct ipc_namespace *ns, struct ipc_params *params)
static inline void ss_add(struct msg_queue *msq, struct msg_sender *mss)
{
mss->tsk = current;
- current->state = TASK_INTERRUPTIBLE;
+ __set_current_state(TASK_INTERRUPTIBLE);
list_add_tail(&mss->list, &msq->q_senders);
}
@@ -306,15 +241,14 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg)
SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg)
{
struct ipc_namespace *ns;
- struct ipc_ops msg_ops;
+ static const struct ipc_ops msg_ops = {
+ .getnew = newque,
+ .associate = msg_security,
+ };
struct ipc_params msg_params;
ns = current->nsproxy->ipc_ns;
- msg_ops.getnew = newque;
- msg_ops.associate = msg_security;
- msg_ops.more_checks = NULL;
-
msg_params.key = key;
msg_params.flg = msgflg;
@@ -612,23 +546,22 @@ SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)
static int testmsg(struct msg_msg *msg, long type, int mode)
{
- switch (mode)
- {
- case SEARCH_ANY:
- case SEARCH_NUMBER:
+ switch (mode) {
+ case SEARCH_ANY:
+ case SEARCH_NUMBER:
+ return 1;
+ case SEARCH_LESSEQUAL:
+ if (msg->m_type <= type)
return 1;
- case SEARCH_LESSEQUAL:
- if (msg->m_type <= type)
- return 1;
- break;
- case SEARCH_EQUAL:
- if (msg->m_type == type)
- return 1;
- break;
- case SEARCH_NOTEQUAL:
- if (msg->m_type != type)
- return 1;
- break;
+ break;
+ case SEARCH_EQUAL:
+ if (msg->m_type == type)
+ return 1;
+ break;
+ case SEARCH_NOTEQUAL:
+ if (msg->m_type != type)
+ return 1;
+ break;
}
return 0;
}
@@ -978,7 +911,7 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgfl
else
msr_d.r_maxsize = bufsz;
msr_d.r_msg = ERR_PTR(-EAGAIN);
- current->state = TASK_INTERRUPTIBLE;
+ __set_current_state(TASK_INTERRUPTIBLE);
ipc_unlock_object(&msq->q_perm);
rcu_read_unlock();
@@ -1056,6 +989,57 @@ SYSCALL_DEFINE5(msgrcv, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,
return do_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg, do_msg_fill);
}
+/*
+ * Scale msgmni with the available lowmem size: the memory dedicated to msg
+ * queues should occupy at most 1/MSG_MEM_SCALE of lowmem.
+ * Also take into account the number of nsproxies created so far.
+ * This should be done staying within the (MSGMNI , IPCMNI/nr_ipc_ns) range.
+ */
+void recompute_msgmni(struct ipc_namespace *ns)
+{
+ struct sysinfo i;
+ unsigned long allowed;
+ int nb_ns;
+
+ si_meminfo(&i);
+ allowed = (((i.totalram - i.totalhigh) / MSG_MEM_SCALE) * i.mem_unit)
+ / MSGMNB;
+ nb_ns = atomic_read(&nr_ipc_ns);
+ allowed /= nb_ns;
+
+ if (allowed < MSGMNI) {
+ ns->msg_ctlmni = MSGMNI;
+ return;
+ }
+
+ if (allowed > IPCMNI / nb_ns) {
+ ns->msg_ctlmni = IPCMNI / nb_ns;
+ return;
+ }
+
+ ns->msg_ctlmni = allowed;
+}
+
+void msg_init_ns(struct ipc_namespace *ns)
+{
+ ns->msg_ctlmax = MSGMAX;
+ ns->msg_ctlmnb = MSGMNB;
+
+ recompute_msgmni(ns);
+
+ atomic_set(&ns->msg_bytes, 0);
+ atomic_set(&ns->msg_hdrs, 0);
+ ipc_init_ids(&ns->ids[IPC_MSG_IDS]);
+}
+
+#ifdef CONFIG_IPC_NS
+void msg_exit_ns(struct ipc_namespace *ns)
+{
+ free_ipcs(ns, &msg_ids(ns), freeque);
+ idr_destroy(&ns->ids[IPC_MSG_IDS].ipcs_idr);
+}
+#endif
+
#ifdef CONFIG_PROC_FS
static int sysvipc_msg_proc_show(struct seq_file *s, void *it)
{
@@ -1080,3 +1064,15 @@ static int sysvipc_msg_proc_show(struct seq_file *s, void *it)
msq->q_ctime);
}
#endif
+
+void __init msg_init(void)
+{
+ msg_init_ns(&init_ipc_ns);
+
+ printk(KERN_INFO "msgmni has been set to %d\n",
+ init_ipc_ns.msg_ctlmni);
+
+ ipc_init_proc_interface("sysvipc/msg",
+ " key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n",
+ IPC_MSG_IDS, sysvipc_msg_proc_show);
+}
diff --git a/ipc/sem.c b/ipc/sem.c
index bee555417312..454f6c6020a8 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -47,8 +47,7 @@
* Thus: Perfect SMP scaling between independent semaphore arrays.
* If multiple semaphores in one array are used, then cache line
* trashing on the semaphore array spinlock will limit the scaling.
- * - semncnt and semzcnt are calculated on demand in count_semncnt() and
- * count_semzcnt()
+ * - semncnt and semzcnt are calculated on demand in count_semcnt()
* - the task that performs a successful semop() scans the list of all
* sleeping tasks and completes any pending operations that can be fulfilled.
* Semaphores are actively given to waiting tasks (necessary for FIFO).
@@ -87,7 +86,7 @@
#include <linux/nsproxy.h>
#include <linux/ipc_namespace.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include "util.h"
/* One semaphore structure for each semaphore in the system. */
@@ -110,6 +109,7 @@ struct sem_queue {
int pid; /* process id of requesting process */
int status; /* completion status of operation */
struct sembuf *sops; /* array of pending operations */
+ struct sembuf *blocking; /* the operation that blocked */
int nsops; /* number of operations */
int alter; /* does *sops alter the array? */
};
@@ -160,7 +160,7 @@ static int sysvipc_sem_proc_show(struct seq_file *s, void *it);
* sem_array.pending{_alter,_cont},
* sem_array.sem_undo: global sem_lock() for read/write
* sem_undo.proc_next: only "current" is allowed to read/write that field.
- *
+ *
* sem_array.sem_base[i].pending_{const,alter}:
* global or semaphore sem_lock() for read/write
*/
@@ -564,7 +564,11 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp,
SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
{
struct ipc_namespace *ns;
- struct ipc_ops sem_ops;
+ static const struct ipc_ops sem_ops = {
+ .getnew = newary,
+ .associate = sem_security,
+ .more_checks = sem_more_checks,
+ };
struct ipc_params sem_params;
ns = current->nsproxy->ipc_ns;
@@ -572,10 +576,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
if (nsems < 0 || nsems > ns->sc_semmsl)
return -EINVAL;
- sem_ops.getnew = newary;
- sem_ops.associate = sem_security;
- sem_ops.more_checks = sem_more_checks;
-
sem_params.key = key;
sem_params.flg = semflg;
sem_params.u.nsems = nsems;
@@ -586,21 +586,23 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
/**
* perform_atomic_semop - Perform (if possible) a semaphore operation
* @sma: semaphore array
- * @sops: array with operations that should be checked
- * @nsops: number of operations
- * @un: undo array
- * @pid: pid that did the change
+ * @q: struct sem_queue that describes the operation
*
* Returns 0 if the operation was possible.
* Returns 1 if the operation is impossible, the caller must sleep.
* Negative values are error codes.
*/
-static int perform_atomic_semop(struct sem_array *sma, struct sembuf *sops,
- int nsops, struct sem_undo *un, int pid)
+static int perform_atomic_semop(struct sem_array *sma, struct sem_queue *q)
{
- int result, sem_op;
+ int result, sem_op, nsops, pid;
struct sembuf *sop;
struct sem *curr;
+ struct sembuf *sops;
+ struct sem_undo *un;
+
+ sops = q->sops;
+ nsops = q->nsops;
+ un = q->undo;
for (sop = sops; sop < sops + nsops; sop++) {
curr = sma->sem_base + sop->sem_num;
@@ -628,6 +630,7 @@ static int perform_atomic_semop(struct sem_array *sma, struct sembuf *sops,
}
sop--;
+ pid = q->pid;
while (sop >= sops) {
sma->sem_base[sop->sem_num].sempid = pid;
sop--;
@@ -640,6 +643,8 @@ out_of_range:
goto undo;
would_block:
+ q->blocking = sop;
+
if (sop->sem_flg & IPC_NOWAIT)
result = -EAGAIN;
else
@@ -780,8 +785,7 @@ static int wake_const_ops(struct sem_array *sma, int semnum,
q = container_of(walk, struct sem_queue, list);
walk = walk->next;
- error = perform_atomic_semop(sma, q->sops, q->nsops,
- q->undo, q->pid);
+ error = perform_atomic_semop(sma, q);
if (error <= 0) {
/* operation completed, remove from queue & wakeup */
@@ -893,8 +897,7 @@ again:
if (semnum != -1 && sma->sem_base[semnum].semval == 0)
break;
- error = perform_atomic_semop(sma, q->sops, q->nsops,
- q->undo, q->pid);
+ error = perform_atomic_semop(sma, q);
/* Does q->sleeper still need to sleep? */
if (error > 0)
@@ -989,65 +992,74 @@ static void do_smart_update(struct sem_array *sma, struct sembuf *sops, int nsop
set_semotime(sma, sops);
}
+/*
+ * check_qop: Test if a queued operation sleeps on the semaphore semnum
+ */
+static int check_qop(struct sem_array *sma, int semnum, struct sem_queue *q,
+ bool count_zero)
+{
+ struct sembuf *sop = q->blocking;
+
+ /*
+ * Linux always (since 0.99.10) reported a task as sleeping on all
+ * semaphores. This violates SUS, therefore it was changed to the
+ * standard compliant behavior.
+ * Give the administrators a chance to notice that an application
+ * might misbehave because it relies on the Linux behavior.
+ */
+ pr_info_once("semctl(GETNCNT/GETZCNT) is since 3.16 Single Unix Specification compliant.\n"
+ "The task %s (%d) triggered the difference, watch for misbehavior.\n",
+ current->comm, task_pid_nr(current));
+
+ if (sop->sem_num != semnum)
+ return 0;
+
+ if (count_zero && sop->sem_op == 0)
+ return 1;
+ if (!count_zero && sop->sem_op < 0)
+ return 1;
+
+ return 0;
+}
+
/* The following counts are associated to each semaphore:
* semncnt number of tasks waiting on semval being nonzero
* semzcnt number of tasks waiting on semval being zero
- * This model assumes that a task waits on exactly one semaphore.
- * Since semaphore operations are to be performed atomically, tasks actually
- * wait on a whole sequence of semaphores simultaneously.
- * The counts we return here are a rough approximation, but still
- * warrant that semncnt+semzcnt>0 if the task is on the pending queue.
+ *
+ * Per definition, a task waits only on the semaphore of the first semop
+ * that cannot proceed, even if additional operation would block, too.
*/
-static int count_semncnt(struct sem_array *sma, ushort semnum)
+static int count_semcnt(struct sem_array *sma, ushort semnum,
+ bool count_zero)
{
- int semncnt;
+ struct list_head *l;
struct sem_queue *q;
+ int semcnt;
- semncnt = 0;
- list_for_each_entry(q, &sma->sem_base[semnum].pending_alter, list) {
- struct sembuf *sops = q->sops;
- BUG_ON(sops->sem_num != semnum);
- if ((sops->sem_op < 0) && !(sops->sem_flg & IPC_NOWAIT))
- semncnt++;
+ semcnt = 0;
+ /* First: check the simple operations. They are easy to evaluate */
+ if (count_zero)
+ l = &sma->sem_base[semnum].pending_const;
+ else
+ l = &sma->sem_base[semnum].pending_alter;
+
+ list_for_each_entry(q, l, list) {
+ /* all task on a per-semaphore list sleep on exactly
+ * that semaphore
+ */
+ semcnt++;
}
+ /* Then: check the complex operations. */
list_for_each_entry(q, &sma->pending_alter, list) {
- struct sembuf *sops = q->sops;
- int nsops = q->nsops;
- int i;
- for (i = 0; i < nsops; i++)
- if (sops[i].sem_num == semnum
- && (sops[i].sem_op < 0)
- && !(sops[i].sem_flg & IPC_NOWAIT))
- semncnt++;
+ semcnt += check_qop(sma, semnum, q, count_zero);
}
- return semncnt;
-}
-
-static int count_semzcnt(struct sem_array *sma, ushort semnum)
-{
- int semzcnt;
- struct sem_queue *q;
-
- semzcnt = 0;
- list_for_each_entry(q, &sma->sem_base[semnum].pending_const, list) {
- struct sembuf *sops = q->sops;
- BUG_ON(sops->sem_num != semnum);
- if ((sops->sem_op == 0) && !(sops->sem_flg & IPC_NOWAIT))
- semzcnt++;
+ if (count_zero) {
+ list_for_each_entry(q, &sma->pending_const, list) {
+ semcnt += check_qop(sma, semnum, q, count_zero);
+ }
}
-
- list_for_each_entry(q, &sma->pending_const, list) {
- struct sembuf *sops = q->sops;
- int nsops = q->nsops;
- int i;
- for (i = 0; i < nsops; i++)
- if (sops[i].sem_num == semnum
- && (sops[i].sem_op == 0)
- && !(sops[i].sem_flg & IPC_NOWAIT))
- semzcnt++;
- }
- return semzcnt;
+ return semcnt;
}
/* Free a semaphore set. freeary() is called with sem_ids.rwsem locked
@@ -1161,7 +1173,7 @@ static int semctl_nolock(struct ipc_namespace *ns, int semid,
err = security_sem_semctl(NULL, cmd);
if (err)
return err;
-
+
memset(&seminfo, 0, sizeof(seminfo));
seminfo.semmni = ns->sc_semmni;
seminfo.semmns = ns->sc_semmns;
@@ -1181,7 +1193,7 @@ static int semctl_nolock(struct ipc_namespace *ns, int semid,
}
max_id = ipc_get_maxid(&sem_ids(ns));
up_read(&sem_ids(ns).rwsem);
- if (copy_to_user(p, &seminfo, sizeof(struct seminfo)))
+ if (copy_to_user(p, &seminfo, sizeof(struct seminfo)))
return -EFAULT;
return (max_id < 0) ? 0 : max_id;
}
@@ -1449,10 +1461,10 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
err = curr->sempid;
goto out_unlock;
case GETNCNT:
- err = count_semncnt(sma, semnum);
+ err = count_semcnt(sma, semnum, 0);
goto out_unlock;
case GETZCNT:
- err = count_semzcnt(sma, semnum);
+ err = count_semcnt(sma, semnum, 1);
goto out_unlock;
}
@@ -1866,8 +1878,13 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
if (un && un->semid == -1)
goto out_unlock_free;
- error = perform_atomic_semop(sma, sops, nsops, un,
- task_tgid_vnr(current));
+ queue.sops = sops;
+ queue.nsops = nsops;
+ queue.undo = un;
+ queue.pid = task_tgid_vnr(current);
+ queue.alter = alter;
+
+ error = perform_atomic_semop(sma, &queue);
if (error == 0) {
/* If the operation was successful, then do
* the required updates.
@@ -1883,12 +1900,6 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
/* We need to sleep on this operation, so we put the current
* task into the pending queue and go to sleep.
*/
-
- queue.sops = sops;
- queue.nsops = nsops;
- queue.undo = un;
- queue.pid = task_tgid_vnr(current);
- queue.alter = alter;
if (nsops == 1) {
struct sem *curr;
@@ -2016,7 +2027,7 @@ int copy_semundo(unsigned long clone_flags, struct task_struct *tsk)
return error;
atomic_inc(&undo_list->refcnt);
tsk->sysvsem.undo_list = undo_list;
- } else
+ } else
tsk->sysvsem.undo_list = NULL;
return 0;
diff --git a/ipc/shm.c b/ipc/shm.c
index 76459616a7fa..89fc354156cb 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -43,7 +43,7 @@
#include <linux/mount.h>
#include <linux/ipc_namespace.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include "util.h"
@@ -493,7 +493,11 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
if (size < SHMMIN || size > ns->shm_ctlmax)
return -EINVAL;
- if (ns->shm_tot + numpages > ns->shm_ctlall)
+ if (numpages << PAGE_SHIFT < size)
+ return -ENOSPC;
+
+ if (ns->shm_tot + numpages < ns->shm_tot ||
+ ns->shm_tot + numpages > ns->shm_ctlall)
return -ENOSPC;
shp = ipc_rcu_alloc(sizeof(*shp));
@@ -609,15 +613,15 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp,
SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg)
{
struct ipc_namespace *ns;
- struct ipc_ops shm_ops;
+ static const struct ipc_ops shm_ops = {
+ .getnew = newseg,
+ .associate = shm_security,
+ .more_checks = shm_more_checks,
+ };
struct ipc_params shm_params;
ns = current->nsproxy->ipc_ns;
- shm_ops.getnew = newseg;
- shm_ops.associate = shm_security;
- shm_ops.more_checks = shm_more_checks;
-
shm_params.key = key;
shm_params.flg = shmflg;
shm_params.u.size = size;
@@ -694,7 +698,7 @@ static inline unsigned long copy_shminfo_to_user(void __user *buf, struct shminf
out.shmmin = in->shmmin;
out.shmmni = in->shmmni;
out.shmseg = in->shmseg;
- out.shmall = in->shmall;
+ out.shmall = in->shmall;
return copy_to_user(buf, &out, sizeof(out));
}
@@ -1160,6 +1164,9 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
down_write(¤t->mm->mmap_sem);
if (addr && !(shmflg & SHM_REMAP)) {
err = -EINVAL;
+ if (addr + size < addr)
+ goto invalid;
+
if (find_vma_intersection(current->mm, addr, addr + size))
goto invalid;
/*
diff --git a/ipc/util.c b/ipc/util.c
index 2eb0d1eaa312..27d74e69fd57 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -183,7 +183,7 @@ void __init ipc_init_proc_interface(const char *path, const char *header,
* ipc_findkey - find a key in an ipc identifier set
* @ids: ipc identifier set
* @key: key to find
- *
+ *
* Returns the locked pointer to the ipc structure if found or NULL
* otherwise. If key is found ipc points to the owning ipc structure
*
@@ -317,7 +317,7 @@ int ipc_addid(struct ipc_ids *ids, struct kern_ipc_perm *new, int size)
* when the key is IPC_PRIVATE.
*/
static int ipcget_new(struct ipc_namespace *ns, struct ipc_ids *ids,
- struct ipc_ops *ops, struct ipc_params *params)
+ const struct ipc_ops *ops, struct ipc_params *params)
{
int err;
@@ -344,7 +344,7 @@ static int ipcget_new(struct ipc_namespace *ns, struct ipc_ids *ids,
*/
static int ipc_check_perms(struct ipc_namespace *ns,
struct kern_ipc_perm *ipcp,
- struct ipc_ops *ops,
+ const struct ipc_ops *ops,
struct ipc_params *params)
{
int err;
@@ -375,7 +375,7 @@ static int ipc_check_perms(struct ipc_namespace *ns,
* On success, the ipc id is returned.
*/
static int ipcget_public(struct ipc_namespace *ns, struct ipc_ids *ids,
- struct ipc_ops *ops, struct ipc_params *params)
+ const struct ipc_ops *ops, struct ipc_params *params)
{
struct kern_ipc_perm *ipcp;
int flg = params->flg;
@@ -538,7 +538,7 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flag)
else if (in_group_p(ipcp->cgid) || in_group_p(ipcp->gid))
granted_mode >>= 3;
/* is there some bit set in requested_mode but not in granted_mode? */
- if ((requested_mode & ~granted_mode & 0007) &&
+ if ((requested_mode & ~granted_mode & 0007) &&
!ns_capable(ns->user_ns, CAP_IPC_OWNER))
return -1;
@@ -678,7 +678,7 @@ out:
* Common routine called by sys_msgget(), sys_semget() and sys_shmget().
*/
int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids,
- struct ipc_ops *ops, struct ipc_params *params)
+ const struct ipc_ops *ops, struct ipc_params *params)
{
if (params->key == IPC_PRIVATE)
return ipcget_new(ns, ids, ops, params);
diff --git a/ipc/util.h b/ipc/util.h
index 9c47d6f6c7b4..1a5a0fcd099c 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -78,9 +78,9 @@ struct ipc_params {
* . routine to call for an extra check if needed
*/
struct ipc_ops {
- int (*getnew) (struct ipc_namespace *, struct ipc_params *);
- int (*associate) (struct kern_ipc_perm *, int);
- int (*more_checks) (struct kern_ipc_perm *, struct ipc_params *);
+ int (*getnew)(struct ipc_namespace *, struct ipc_params *);
+ int (*associate)(struct kern_ipc_perm *, int);
+ int (*more_checks)(struct kern_ipc_perm *, struct ipc_params *);
};
struct seq_file;
@@ -142,7 +142,7 @@ struct kern_ipc_perm *ipcctl_pre_down_nolock(struct ipc_namespace *ns,
struct ipc64_perm *perm, int extra_perm);
#ifndef CONFIG_ARCH_WANT_IPC_PARSE_VERSION
- /* On IA-64, we always use the "64-bit version" of the IPC structures. */
+/* On IA-64, we always use the "64-bit version" of the IPC structures. */
# define ipc_parse_version(cmd) IPC_64
#else
int ipc_parse_version(int *cmd);
@@ -201,7 +201,7 @@ static inline bool ipc_valid_object(struct kern_ipc_perm *perm)
struct kern_ipc_perm *ipc_obtain_object_check(struct ipc_ids *ids, int id);
int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids,
- struct ipc_ops *ops, struct ipc_params *params);
+ const struct ipc_ops *ops, struct ipc_params *params);
void free_ipcs(struct ipc_namespace *ns, struct ipc_ids *ids,
void (*free)(struct ipc_namespace *, struct kern_ipc_perm *));
#endif
diff --git a/kernel/acct.c b/kernel/acct.c
index 8d6e145138bb..808a86ff229d 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -55,7 +55,7 @@
#include <linux/times.h>
#include <linux/syscalls.h>
#include <linux/mount.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include <asm/div64.h>
#include <linux/blkdev.h> /* sector_div */
#include <linux/pid_namespace.h>
@@ -134,7 +134,7 @@ static int check_free_space(struct bsd_acct_struct *acct, struct file *file)
spin_lock(&acct_lock);
if (file != acct->file) {
if (act)
- res = act>0;
+ res = act > 0;
goto out;
}
@@ -262,7 +262,7 @@ SYSCALL_DEFINE1(acct, const char __user *, name)
if (name) {
struct filename *tmp = getname(name);
if (IS_ERR(tmp))
- return (PTR_ERR(tmp));
+ return PTR_ERR(tmp);
error = acct_on(tmp);
putname(tmp);
} else {
diff --git a/kernel/audit.c b/kernel/audit.c
index 47845c57eb19..f30106459a32 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -44,7 +44,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/init.h>
-#include <asm/types.h>
+#include <linux/types.h>
#include <linux/atomic.h>
#include <linux/mm.h>
#include <linux/export.h>
diff --git a/kernel/exit.c b/kernel/exit.c
index 750c2e594617..e5c4668f1799 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -313,45 +313,6 @@ kill_orphaned_pgrp(struct task_struct *tsk, struct task_struct *parent)
}
}
-/*
- * Let kernel threads use this to say that they allow a certain signal.
- * Must not be used if kthread was cloned with CLONE_SIGHAND.
- */
-int allow_signal(int sig)
-{
- if (!valid_signal(sig) || sig < 1)
- return -EINVAL;
-
- spin_lock_irq(¤t->sighand->siglock);
- /* This is only needed for daemonize()'ed kthreads */
- sigdelset(¤t->blocked, sig);
- /*
- * Kernel threads handle their own signals. Let the signal code
- * know it'll be handled, so that they don't get converted to
- * SIGKILL or just silently dropped.
- */
- current->sighand->action[(sig)-1].sa.sa_handler = (void __user *)2;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
- return 0;
-}
-
-EXPORT_SYMBOL(allow_signal);
-
-int disallow_signal(int sig)
-{
- if (!valid_signal(sig) || sig < 1)
- return -EINVAL;
-
- spin_lock_irq(¤t->sighand->siglock);
- current->sighand->action[(sig)-1].sa.sa_handler = SIG_IGN;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
- return 0;
-}
-
-EXPORT_SYMBOL(disallow_signal);
-
#ifdef CONFIG_MEMCG
/*
* A task is exiting. If it owned this mm, find a new owner for the mm.
diff --git a/kernel/fork.c b/kernel/fork.c
index 0d53eb0dfb6f..d2799d1fc952 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1606,10 +1606,12 @@ long do_fork(unsigned long clone_flags,
*/
if (!IS_ERR(p)) {
struct completion vfork;
+ struct pid *pid;
trace_sched_process_fork(current, p);
- nr = task_pid_vnr(p);
+ pid = get_task_pid(p, PIDTYPE_PID);
+ nr = pid_vnr(pid);
if (clone_flags & CLONE_PARENT_SETTID)
put_user(nr, parent_tidptr);
@@ -1624,12 +1626,14 @@ long do_fork(unsigned long clone_flags,
/* forking complete and child started to run, tell ptracer */
if (unlikely(trace))
- ptrace_event(trace, nr);
+ ptrace_event_pid(trace, pid);
if (clone_flags & CLONE_VFORK) {
if (!wait_for_vfork_done(p, &vfork))
- ptrace_event(PTRACE_EVENT_VFORK_DONE, nr);
+ ptrace_event_pid(PTRACE_EVENT_VFORK_DONE, pid);
}
+
+ put_pid(pid);
} else {
nr = PTR_ERR(p);
}
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 28c57069ef68..6748688813d0 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -125,8 +125,8 @@ static struct page *kimage_alloc_page(struct kimage *image,
unsigned long dest);
static int do_kimage_alloc(struct kimage **rimage, unsigned long entry,
- unsigned long nr_segments,
- struct kexec_segment __user *segments)
+ unsigned long nr_segments,
+ struct kexec_segment __user *segments)
{
size_t segment_bytes;
struct kimage *image;
@@ -257,13 +257,13 @@ static int kimage_normal_alloc(struct kimage **rimage, unsigned long entry,
image->control_code_page = kimage_alloc_control_pages(image,
get_order(KEXEC_CONTROL_PAGE_SIZE));
if (!image->control_code_page) {
- printk(KERN_ERR "Could not allocate control_code_buffer\n");
+ pr_err("Could not allocate control_code_buffer\n");
goto out_free;
}
image->swap_page = kimage_alloc_control_pages(image, 0);
if (!image->swap_page) {
- printk(KERN_ERR "Could not allocate swap buffer\n");
+ pr_err("Could not allocate swap buffer\n");
goto out_free;
}
@@ -332,7 +332,7 @@ static int kimage_crash_alloc(struct kimage **rimage, unsigned long entry,
image->control_code_page = kimage_alloc_control_pages(image,
get_order(KEXEC_CONTROL_PAGE_SIZE));
if (!image->control_code_page) {
- printk(KERN_ERR "Could not allocate control_code_buffer\n");
+ pr_err("Could not allocate control_code_buffer\n");
goto out_free;
}
@@ -621,8 +621,8 @@ static void kimage_terminate(struct kimage *image)
#define for_each_kimage_entry(image, ptr, entry) \
for (ptr = &image->head; (entry = *ptr) && !(entry & IND_DONE); \
- ptr = (entry & IND_INDIRECTION)? \
- phys_to_virt((entry & PAGE_MASK)): ptr +1)
+ ptr = (entry & IND_INDIRECTION) ? \
+ phys_to_virt((entry & PAGE_MASK)) : ptr + 1)
static void kimage_free_entry(kimage_entry_t entry)
{
@@ -650,8 +650,7 @@ static void kimage_free(struct kimage *image)
* done with it.
*/
ind = entry;
- }
- else if (entry & IND_SOURCE)
+ } else if (entry & IND_SOURCE)
kimage_free_entry(entry);
}
/* Free the final indirection page */
@@ -774,8 +773,7 @@ static struct page *kimage_alloc_page(struct kimage *image,
addr = old_addr;
page = old_page;
break;
- }
- else {
+ } else {
/* Place the page on the destination list I
* will use it later.
*/
@@ -1059,7 +1057,7 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry,
return -EINVAL;
ksegments = compat_alloc_user_space(nr_segments * sizeof(out));
- for (i=0; i < nr_segments; i++) {
+ for (i = 0; i < nr_segments; i++) {
result = copy_from_user(&in, &segments[i], sizeof(in));
if (result)
return -EFAULT;
@@ -1214,14 +1212,14 @@ void crash_save_cpu(struct pt_regs *regs, int cpu)
* squirrelled away. ELF notes happen to provide
* all of that, so there is no need to invent something new.
*/
- buf = (u32*)per_cpu_ptr(crash_notes, cpu);
+ buf = (u32 *)per_cpu_ptr(crash_notes, cpu);
if (!buf)
return;
memset(&prstatus, 0, sizeof(prstatus));
prstatus.pr_pid = current->pid;
elf_core_copy_kernel_regs(&prstatus.pr_reg, regs);
buf = append_elf_note(buf, KEXEC_CORE_NOTE_NAME, NT_PRSTATUS,
- &prstatus, sizeof(prstatus));
+ &prstatus, sizeof(prstatus));
final_note(buf);
}
@@ -1230,8 +1228,7 @@ static int __init crash_notes_memory_init(void)
/* Allocate memory for saving cpu registers. */
crash_notes = alloc_percpu(note_buf_t);
if (!crash_notes) {
- printk("Kexec: Memory allocation for saving cpu register"
- " states failed\n");
+ pr_warn("Kexec: Memory allocation for saving cpu register states failed\n");
return -ENOMEM;
}
return 0;
@@ -1253,10 +1250,10 @@ subsys_initcall(crash_notes_memory_init);
*
* The function returns 0 on success and -EINVAL on failure.
*/
-static int __init parse_crashkernel_mem(char *cmdline,
- unsigned long long system_ram,
- unsigned long long *crash_size,
- unsigned long long *crash_base)
+static int __init parse_crashkernel_mem(char *cmdline,
+ unsigned long long system_ram,
+ unsigned long long *crash_size,
+ unsigned long long *crash_base)
{
char *cur = cmdline, *tmp;
@@ -1267,12 +1264,12 @@ static int __init parse_crashkernel_mem(char *cmdline,
/* get the start of the range */
start = memparse(cur, &tmp);
if (cur == tmp) {
- pr_warning("crashkernel: Memory value expected\n");
+ pr_warn("crashkernel: Memory value expected\n");
return -EINVAL;
}
cur = tmp;
if (*cur != '-') {
- pr_warning("crashkernel: '-' expected\n");
+ pr_warn("crashkernel: '-' expected\n");
return -EINVAL;
}
cur++;
@@ -1281,31 +1278,30 @@ static int __init parse_crashkernel_mem(char *cmdline,
if (*cur != ':') {
end = memparse(cur, &tmp);
if (cur == tmp) {
- pr_warning("crashkernel: Memory "
- "value expected\n");
+ pr_warn("crashkernel: Memory value expected\n");
return -EINVAL;
}
cur = tmp;
if (end <= start) {
- pr_warning("crashkernel: end <= start\n");
+ pr_warn("crashkernel: end <= start\n");
return -EINVAL;
}
}
if (*cur != ':') {
- pr_warning("crashkernel: ':' expected\n");
+ pr_warn("crashkernel: ':' expected\n");
return -EINVAL;
}
cur++;
size = memparse(cur, &tmp);
if (cur == tmp) {
- pr_warning("Memory value expected\n");
+ pr_warn("Memory value expected\n");
return -EINVAL;
}
cur = tmp;
if (size >= system_ram) {
- pr_warning("crashkernel: invalid size\n");
+ pr_warn("crashkernel: invalid size\n");
return -EINVAL;
}
@@ -1323,8 +1319,7 @@ static int __init parse_crashkernel_mem(char *cmdline,
cur++;
*crash_base = memparse(cur, &tmp);
if (cur == tmp) {
- pr_warning("Memory value expected "
- "after '@'\n");
+ pr_warn("Memory value expected after '@'\n");
return -EINVAL;
}
}
@@ -1336,26 +1331,26 @@ static int __init parse_crashkernel_mem(char *cmdline,
/*
* That function parses "simple" (old) crashkernel command lines like
*
- * crashkernel=size[@offset]
+ * crashkernel=size[@offset]
*
* It returns 0 on success and -EINVAL on failure.
*/
-static int __init parse_crashkernel_simple(char *cmdline,
- unsigned long long *crash_size,
- unsigned long long *crash_base)
+static int __init parse_crashkernel_simple(char *cmdline,
+ unsigned long long *crash_size,
+ unsigned long long *crash_base)
{
char *cur = cmdline;
*crash_size = memparse(cmdline, &cur);
if (cmdline == cur) {
- pr_warning("crashkernel: memory value expected\n");
+ pr_warn("crashkernel: memory value expected\n");
return -EINVAL;
}
if (*cur == '@')
*crash_base = memparse(cur+1, &cur);
else if (*cur != ' ' && *cur != '\0') {
- pr_warning("crashkernel: unrecognized char\n");
+ pr_warn("crashkernel: unrecognized char\n");
return -EINVAL;
}
@@ -1691,7 +1686,7 @@ int kernel_kexec(void)
* CPU hotplug again; so re-enable it here.
*/
cpu_hotplug_enable();
- printk(KERN_EMERG "Starting new kernel\n");
+ pr_emerg("Starting new kernel\n");
machine_shutdown();
}
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 0ac67a5861c5..8637e041a247 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -285,10 +285,7 @@ static int wait_for_helper(void *data)
pid_t pid;
/* If SIGCLD is ignored sys_wait4 won't populate the status. */
- spin_lock_irq(¤t->sighand->siglock);
- current->sighand->action[SIGCHLD-1].sa.sa_handler = SIG_DFL;
- spin_unlock_irq(¤t->sighand->siglock);
-
+ kernel_sigaction(SIGCHLD, SIG_DFL);
pid = kernel_thread(____call_usermodehelper, sub_info, SIGCHLD);
if (pid < 0) {
sub_info->retval = pid;
diff --git a/kernel/panic.c b/kernel/panic.c
index d02fa9fef46a..62e16cef9cc2 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -32,6 +32,7 @@ static unsigned long tainted_mask;
static int pause_on_oops;
static int pause_on_oops_flag;
static DEFINE_SPINLOCK(pause_on_oops_lock);
+static bool crash_kexec_post_notifiers;
int panic_timeout = CONFIG_PANIC_TIMEOUT;
EXPORT_SYMBOL_GPL(panic_timeout);
@@ -112,9 +113,11 @@ void panic(const char *fmt, ...)
/*
* If we have crashed and we have a crash kernel loaded let it handle
* everything else.
- * Do we want to call this before we try to display a message?
+ * If we want to run this after calling panic_notifiers, pass
+ * the "crash_kexec_post_notifiers" option to the kernel.
*/
- crash_kexec(NULL);
+ if (!crash_kexec_post_notifiers)
+ crash_kexec(NULL);
/*
* Note smp_send_stop is the usual smp shutdown function, which
@@ -131,6 +134,15 @@ void panic(const char *fmt, ...)
kmsg_dump(KMSG_DUMP_PANIC);
+ /*
+ * If you doubt kdump always works fine in any situation,
+ * "crash_kexec_post_notifiers" offers you a chance to run
+ * panic_notifiers and dumping kmsg before kdump.
+ * Note: since some panic_notifiers can make crashed kernel
+ * more unstable, it can increase risks of the kdump failure too.
+ */
+ crash_kexec(NULL);
+
bust_spinlocks(0);
if (!panic_blink)
@@ -472,6 +484,13 @@ EXPORT_SYMBOL(__stack_chk_fail);
core_param(panic, panic_timeout, int, 0644);
core_param(pause_on_oops, pause_on_oops, int, 0644);
+static int __init setup_crash_kexec_post_notifiers(char *s)
+{
+ crash_kexec_post_notifiers = true;
+ return 0;
+}
+early_param("crash_kexec_post_notifiers", setup_crash_kexec_post_notifiers);
+
static int __init oops_setup(char *s)
{
if (!s)
diff --git a/kernel/profile.c b/kernel/profile.c
index cb980f0c731b..54bf5ba26420 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -52,9 +52,9 @@ static DEFINE_MUTEX(profile_flip_mutex);
int profile_setup(char *str)
{
- static char schedstr[] = "schedule";
- static char sleepstr[] = "sleep";
- static char kvmstr[] = "kvm";
+ static const char schedstr[] = "schedule";
+ static const char sleepstr[] = "sleep";
+ static const char kvmstr[] = "kvm";
int par;
if (!strncmp(str, sleepstr, strlen(sleepstr))) {
@@ -64,12 +64,10 @@ int profile_setup(char *str)
str += strlen(sleepstr) + 1;
if (get_option(&str, &par))
prof_shift = par;
- printk(KERN_INFO
- "kernel sleep profiling enabled (shift: %ld)\n",
+ pr_info("kernel sleep profiling enabled (shift: %ld)\n",
prof_shift);
#else
- printk(KERN_WARNING
- "kernel sleep profiling requires CONFIG_SCHEDSTATS\n");
+ pr_warn("kernel sleep profiling requires CONFIG_SCHEDSTATS\n");
#endif /* CONFIG_SCHEDSTATS */
} else if (!strncmp(str, schedstr, strlen(schedstr))) {
prof_on = SCHED_PROFILING;
@@ -77,8 +75,7 @@ int profile_setup(char *str)
str += strlen(schedstr) + 1;
if (get_option(&str, &par))
prof_shift = par;
- printk(KERN_INFO
- "kernel schedule profiling enabled (shift: %ld)\n",
+ pr_info("kernel schedule profiling enabled (shift: %ld)\n",
prof_shift);
} else if (!strncmp(str, kvmstr, strlen(kvmstr))) {
prof_on = KVM_PROFILING;
@@ -86,13 +83,12 @@ int profile_setup(char *str)
str += strlen(kvmstr) + 1;
if (get_option(&str, &par))
prof_shift = par;
- printk(KERN_INFO
- "kernel KVM profiling enabled (shift: %ld)\n",
+ pr_info("kernel KVM profiling enabled (shift: %ld)\n",
prof_shift);
} else if (get_option(&str, &par)) {
prof_shift = par;
prof_on = CPU_PROFILING;
- printk(KERN_INFO "kernel profiling enabled (shift: %ld)\n",
+ pr_info("kernel profiling enabled (shift: %ld)\n",
prof_shift);
}
return 1;
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index b35c21503a36..f6d76bebe69f 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -39,7 +39,7 @@
* is only needed for handling filters shared across tasks.
* @prev: points to a previously installed, or inherited, filter
* @len: the number of instructions in the program
- * @insns: the BPF program instructions to evaluate
+ * @insnsi: the BPF program instructions to evaluate
*
* seccomp_filter objects are organized in a tree linked via the @prev
* pointer. For any task, it appears to be a singly-linked list starting
@@ -220,7 +220,7 @@ static long seccomp_attach_filter(struct sock_fprog *fprog)
return -ENOMEM;
/*
- * Installing a seccomp filter requires that the task have
+ * Installing a seccomp filter requires that the task has
* CAP_SYS_ADMIN in its namespace or be running with no_new_privs.
* This avoids scenarios where unprivileged tasks can affect the
* behavior of privileged children.
diff --git a/kernel/signal.c b/kernel/signal.c
index 6e600aaa2af4..a4077e90f19f 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -277,6 +277,7 @@ void task_clear_jobctl_trapping(struct task_struct *task)
{
if (unlikely(task->jobctl & JOBCTL_TRAPPING)) {
task->jobctl &= ~JOBCTL_TRAPPING;
+ smp_mb(); /* advised by wake_up_bit() */
wake_up_bit(&task->jobctl, JOBCTL_TRAPPING_BIT);
}
}
@@ -705,11 +706,8 @@ void signal_wake_up_state(struct task_struct *t, unsigned int state)
* Returns 1 if any signals were found.
*
* All callers must be holding the siglock.
- *
- * This version takes a sigset mask and looks at all signals,
- * not just those in the first mask word.
*/
-static int rm_from_queue_full(sigset_t *mask, struct sigpending *s)
+static int flush_sigqueue_mask(sigset_t *mask, struct sigpending *s)
{
struct sigqueue *q, *n;
sigset_t m;
@@ -727,29 +725,6 @@ static int rm_from_queue_full(sigset_t *mask, struct sigpending *s)
}
return 1;
}
-/*
- * Remove signals in mask from the pending set and queue.
- * Returns 1 if any signals were found.
- *
- * All callers must be holding the siglock.
- */
-static int rm_from_queue(unsigned long mask, struct sigpending *s)
-{
- struct sigqueue *q, *n;
-
- if (!sigtestsetmask(&s->signal, mask))
- return 0;
-
- sigdelsetmask(&s->signal, mask);
- list_for_each_entry_safe(q, n, &s->list, list) {
- if (q->info.si_signo < SIGRTMIN &&
- (mask & sigmask(q->info.si_signo))) {
- list_del_init(&q->list);
- __sigqueue_free(q);
- }
- }
- return 1;
-}
static inline int is_si_special(const struct siginfo *info)
{
@@ -861,6 +836,7 @@ static bool prepare_signal(int sig, struct task_struct *p, bool force)
{
struct signal_struct *signal = p->signal;
struct task_struct *t;
+ sigset_t flush;
if (signal->flags & (SIGNAL_GROUP_EXIT | SIGNAL_GROUP_COREDUMP)) {
if (signal->flags & SIGNAL_GROUP_COREDUMP)
@@ -872,26 +848,25 @@ static bool prepare_signal(int sig, struct task_struct *p, bool force)
/*
* This is a stop signal. Remove SIGCONT from all queues.
*/
- rm_from_queue(sigmask(SIGCONT), &signal->shared_pending);
- t = p;
- do {
- rm_from_queue(sigmask(SIGCONT), &t->pending);
- } while_each_thread(p, t);
+ siginitset(&flush, sigmask(SIGCONT));
+ flush_sigqueue_mask(&flush, &signal->shared_pending);
+ for_each_thread(p, t)
+ flush_sigqueue_mask(&flush, &t->pending);
} else if (sig == SIGCONT) {
unsigned int why;
/*
* Remove all stop signals from all queues, wake all threads.
*/
- rm_from_queue(SIG_KERNEL_STOP_MASK, &signal->shared_pending);
- t = p;
- do {
+ siginitset(&flush, SIG_KERNEL_STOP_MASK);
+ flush_sigqueue_mask(&flush, &signal->shared_pending);
+ for_each_thread(p, t) {
+ flush_sigqueue_mask(&flush, &t->pending);
task_clear_jobctl_pending(t, JOBCTL_STOP_PENDING);
- rm_from_queue(SIG_KERNEL_STOP_MASK, &t->pending);
if (likely(!(t->ptrace & PT_SEIZED)))
wake_up_state(t, __TASK_STOPPED);
else
ptrace_trap_notify(t);
- } while_each_thread(p, t);
+ }
/*
* Notify the parent with CLD_CONTINUED if we were stopped.
@@ -2854,7 +2829,7 @@ int do_sigtimedwait(const sigset_t *which, siginfo_t *info,
spin_lock_irq(&tsk->sighand->siglock);
__set_task_blocked(tsk, &tsk->real_blocked);
- siginitset(&tsk->real_blocked, 0);
+ sigemptyset(&tsk->real_blocked);
sig = dequeue_signal(tsk, &mask, info);
}
spin_unlock_irq(&tsk->sighand->siglock);
@@ -3091,18 +3066,39 @@ COMPAT_SYSCALL_DEFINE4(rt_tgsigqueueinfo,
}
#endif
+/*
+ * For kthreads only, must not be used if cloned with CLONE_SIGHAND
+ */
+void kernel_sigaction(int sig, __sighandler_t action)
+{
+ spin_lock_irq(¤t->sighand->siglock);
+ current->sighand->action[sig - 1].sa.sa_handler = action;
+ if (action == SIG_IGN) {
+ sigset_t mask;
+
+ sigemptyset(&mask);
+ sigaddset(&mask, sig);
+
+ flush_sigqueue_mask(&mask, ¤t->signal->shared_pending);
+ flush_sigqueue_mask(&mask, ¤t->pending);
+ recalc_sigpending();
+ }
+ spin_unlock_irq(¤t->sighand->siglock);
+}
+EXPORT_SYMBOL(kernel_sigaction);
+
int do_sigaction(int sig, struct k_sigaction *act, struct k_sigaction *oact)
{
- struct task_struct *t = current;
+ struct task_struct *p = current, *t;
struct k_sigaction *k;
sigset_t mask;
if (!valid_signal(sig) || sig < 1 || (act && sig_kernel_only(sig)))
return -EINVAL;
- k = &t->sighand->action[sig-1];
+ k = &p->sighand->action[sig-1];
- spin_lock_irq(¤t->sighand->siglock);
+ spin_lock_irq(&p->sighand->siglock);
if (oact)
*oact = *k;
@@ -3121,21 +3117,20 @@ int do_sigaction(int sig, struct k_sigaction *act, struct k_sigaction *oact)
* (for example, SIGCHLD), shall cause the pending signal to
* be discarded, whether or not it is blocked"
*/
- if (sig_handler_ignored(sig_handler(t, sig), sig)) {
+ if (sig_handler_ignored(sig_handler(p, sig), sig)) {
sigemptyset(&mask);
sigaddset(&mask, sig);
- rm_from_queue_full(&mask, &t->signal->shared_pending);
- do {
- rm_from_queue_full(&mask, &t->pending);
- } while_each_thread(current, t);
+ flush_sigqueue_mask(&mask, &p->signal->shared_pending);
+ for_each_thread(p, t)
+ flush_sigqueue_mask(&mask, &t->pending);
}
}
- spin_unlock_irq(¤t->sighand->siglock);
+ spin_unlock_irq(&p->sighand->siglock);
return 0;
}
-static int
+static int
do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long sp)
{
stack_t oss;
diff --git a/kernel/smp.c b/kernel/smp.c
index 06d574e42c72..306f8180b0d5 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -185,14 +185,26 @@ void generic_smp_call_function_single_interrupt(void)
{
struct llist_node *entry;
struct call_single_data *csd, *csd_next;
+ static bool warned;
+
+ entry = llist_del_all(&__get_cpu_var(call_single_queue));
+ entry = llist_reverse_order(entry);
/*
* Shouldn't receive this interrupt on a cpu that is not yet online.
*/
- WARN_ON_ONCE(!cpu_online(smp_processor_id()));
+ if (unlikely(!cpu_online(smp_processor_id()) && !warned)) {
+ warned = true;
+ WARN(1, "IPI on offline CPU %d\n", smp_processor_id());
- entry = llist_del_all(&__get_cpu_var(call_single_queue));
- entry = llist_reverse_order(entry);
+ /*
+ * We don't have to use the _safe() variant here
+ * because we are not invoking the IPI handlers yet.
+ */
+ llist_for_each_entry(csd, entry, llist)
+ pr_warn("IPI callback %pS sent to offline CPU\n",
+ csd->func);
+ }
llist_for_each_entry_safe(csd, csd_next, entry, llist) {
csd->func(csd->info);
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 40ce2d983b12..db19e3e2aa4b 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -173,6 +173,13 @@ extern int no_unaligned_warning;
#endif
#ifdef CONFIG_PROC_SYSCTL
+
+#define SYSCTL_WRITES_LEGACY -1
+#define SYSCTL_WRITES_WARN 0
+#define SYSCTL_WRITES_STRICT 1
+
+static int sysctl_writes_strict = SYSCTL_WRITES_WARN;
+
static int proc_do_cad_pid(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos);
static int proc_taint(struct ctl_table *table, int write,
@@ -195,7 +202,7 @@ static int proc_dostring_coredump(struct ctl_table *table, int write,
/* Note: sysrq code uses it's own private copy */
static int __sysrq_enabled = CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE;
-static int sysrq_sysctl_handler(ctl_table *table, int write,
+static int sysrq_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos)
{
@@ -495,6 +502,15 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = proc_taint,
},
+ {
+ .procname = "sysctl_writes_strict",
+ .data = &sysctl_writes_strict,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &neg_one,
+ .extra2 = &one,
+ },
#endif
#ifdef CONFIG_LATENCYTOP
{
@@ -1703,8 +1719,8 @@ int __init sysctl_init(void)
#ifdef CONFIG_PROC_SYSCTL
-static int _proc_do_string(void* data, int maxlen, int write,
- void __user *buffer,
+static int _proc_do_string(char *data, int maxlen, int write,
+ char __user *buffer,
size_t *lenp, loff_t *ppos)
{
size_t len;
@@ -1717,21 +1733,30 @@ static int _proc_do_string(void* data, int maxlen, int write,
}
if (write) {
- len = 0;
+ if (sysctl_writes_strict == SYSCTL_WRITES_STRICT) {
+ /* Only continue writes not past the end of buffer. */
+ len = strlen(data);
+ if (len > maxlen - 1)
+ len = maxlen - 1;
+
+ if (*ppos > len)
+ return 0;
+ len = *ppos;
+ } else {
+ /* Start writing from beginning of buffer. */
+ len = 0;
+ }
+
+ *ppos += *lenp;
p = buffer;
- while (len < *lenp) {
+ while ((p - buffer) < *lenp && len < maxlen - 1) {
if (get_user(c, p++))
return -EFAULT;
if (c == 0 || c == '\n')
break;
- len++;
+ data[len++] = c;
}
- if (len >= maxlen)
- len = maxlen-1;
- if(copy_from_user(data, buffer, len))
- return -EFAULT;
- ((char *) data)[len] = 0;
- *ppos += *lenp;
+ data[len] = 0;
} else {
len = strlen(data);
if (len > maxlen)
@@ -1748,10 +1773,10 @@ static int _proc_do_string(void* data, int maxlen, int write,
if (len > *lenp)
len = *lenp;
if (len)
- if(copy_to_user(buffer, data, len))
+ if (copy_to_user(buffer, data, len))
return -EFAULT;
if (len < *lenp) {
- if(put_user('\n', ((char __user *) buffer) + len))
+ if (put_user('\n', buffer + len))
return -EFAULT;
len++;
}
@@ -1761,6 +1786,14 @@ static int _proc_do_string(void* data, int maxlen, int write,
return 0;
}
+static void warn_sysctl_write(struct ctl_table *table)
+{
+ pr_warn_once("%s wrote to %s when file position was not 0!\n"
+ "This will not be supported in the future. To silence this\n"
+ "warning, set kernel.sysctl_writes_strict = -1\n",
+ current->comm, table->procname);
+}
+
/**
* proc_dostring - read a string sysctl
* @table: the sysctl table
@@ -1781,8 +1814,11 @@ static int _proc_do_string(void* data, int maxlen, int write,
int proc_dostring(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
- return _proc_do_string(table->data, table->maxlen, write,
- buffer, lenp, ppos);
+ if (write && *ppos && sysctl_writes_strict == SYSCTL_WRITES_WARN)
+ warn_sysctl_write(table);
+
+ return _proc_do_string((char *)(table->data), table->maxlen, write,
+ (char __user *)buffer, lenp, ppos);
}
static size_t proc_skip_spaces(char **buf)
@@ -1956,6 +1992,18 @@ static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table,
conv = do_proc_dointvec_conv;
if (write) {
+ if (*ppos) {
+ switch (sysctl_writes_strict) {
+ case SYSCTL_WRITES_STRICT:
+ goto out;
+ case SYSCTL_WRITES_WARN:
+ warn_sysctl_write(table);
+ break;
+ default:
+ break;
+ }
+ }
+
if (left > PAGE_SIZE - 1)
left = PAGE_SIZE - 1;
page = __get_free_page(GFP_TEMPORARY);
@@ -2013,6 +2061,7 @@ free:
return err ? : -EINVAL;
}
*lenp -= left;
+out:
*ppos += *lenp;
return err;
}
@@ -2205,6 +2254,18 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
left = *lenp;
if (write) {
+ if (*ppos) {
+ switch (sysctl_writes_strict) {
+ case SYSCTL_WRITES_STRICT:
+ goto out;
+ case SYSCTL_WRITES_WARN:
+ warn_sysctl_write(table);
+ break;
+ default:
+ break;
+ }
+ }
+
if (left > PAGE_SIZE - 1)
left = PAGE_SIZE - 1;
page = __get_free_page(GFP_TEMPORARY);
@@ -2260,6 +2321,7 @@ free:
return err ? : -EINVAL;
}
*lenp -= left;
+out:
*ppos += *lenp;
return err;
}
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index bf71b4b2d632..fcc02560fd6b 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -286,7 +286,7 @@ EXPORT_SYMBOL(from_kuid_munged);
/**
* make_kgid - Map a user-namespace gid pair into a kgid.
* @ns: User namespace that the gid is in
- * @uid: group identifier
+ * @gid: group identifier
*
* Maps a user-namespace gid pair into a kernel internal kgid,
* and returns that kgid.
@@ -482,7 +482,8 @@ static int projid_m_show(struct seq_file *seq, void *v)
return 0;
}
-static void *m_start(struct seq_file *seq, loff_t *ppos, struct uid_gid_map *map)
+static void *m_start(struct seq_file *seq, loff_t *ppos,
+ struct uid_gid_map *map)
{
struct uid_gid_extent *extent = NULL;
loff_t pos = *ppos;
@@ -546,7 +547,8 @@ struct seq_operations proc_projid_seq_operations = {
.show = projid_m_show,
};
-static bool mappings_overlap(struct uid_gid_map *new_map, struct uid_gid_extent *extent)
+static bool mappings_overlap(struct uid_gid_map *new_map,
+ struct uid_gid_extent *extent)
{
u32 upper_first, lower_first, upper_last, lower_last;
unsigned idx;
@@ -653,7 +655,7 @@ static ssize_t map_write(struct file *file, const char __user *buf,
ret = -EINVAL;
pos = kbuf;
new_map.nr_extents = 0;
- for (;pos; pos = next_line) {
+ for (; pos; pos = next_line) {
extent = &new_map.extent[new_map.nr_extents];
/* Find the end of line and ensure I don't look past it */
@@ -687,13 +689,16 @@ static ssize_t map_write(struct file *file, const char __user *buf,
/* Verify we have been given valid starting values */
if ((extent->first == (u32) -1) ||
- (extent->lower_first == (u32) -1 ))
+ (extent->lower_first == (u32) -1))
goto out;
- /* Verify count is not zero and does not cause the extent to wrap */
+ /* Verify count is not zero and does not cause the
+ * extent to wrap
+ */
if ((extent->first + extent->count) <= extent->first)
goto out;
- if ((extent->lower_first + extent->count) <= extent->lower_first)
+ if ((extent->lower_first + extent->count) <=
+ extent->lower_first)
goto out;
/* Do the ranges in extent overlap any previous extents? */
@@ -751,7 +756,8 @@ out:
return ret;
}
-ssize_t proc_uid_map_write(struct file *file, const char __user *buf, size_t size, loff_t *ppos)
+ssize_t proc_uid_map_write(struct file *file, const char __user *buf,
+ size_t size, loff_t *ppos)
{
struct seq_file *seq = file->private_data;
struct user_namespace *ns = seq->private;
@@ -767,7 +773,8 @@ ssize_t proc_uid_map_write(struct file *file, const char __user *buf, size_t siz
&ns->uid_map, &ns->parent->uid_map);
}
-ssize_t proc_gid_map_write(struct file *file, const char __user *buf, size_t size, loff_t *ppos)
+ssize_t proc_gid_map_write(struct file *file, const char __user *buf,
+ size_t size, loff_t *ppos)
{
struct seq_file *seq = file->private_data;
struct user_namespace *ns = seq->private;
@@ -783,7 +790,8 @@ ssize_t proc_gid_map_write(struct file *file, const char __user *buf, size_t siz
&ns->gid_map, &ns->parent->gid_map);
}
-ssize_t proc_projid_map_write(struct file *file, const char __user *buf, size_t size, loff_t *ppos)
+ssize_t proc_projid_map_write(struct file *file, const char __user *buf,
+ size_t size, loff_t *ppos)
{
struct seq_file *seq = file->private_data;
struct user_namespace *ns = seq->private;
@@ -800,7 +808,7 @@ ssize_t proc_projid_map_write(struct file *file, const char __user *buf, size_t
&ns->projid_map, &ns->parent->projid_map);
}
-static bool new_idmap_permitted(const struct file *file,
+static bool new_idmap_permitted(const struct file *file,
struct user_namespace *ns, int cap_setid,
struct uid_gid_map *new_map)
{
@@ -811,8 +819,7 @@ static bool new_idmap_permitted(const struct file *file,
kuid_t uid = make_kuid(ns->parent, id);
if (uid_eq(uid, file->f_cred->fsuid))
return true;
- }
- else if (cap_setid == CAP_SETGID) {
+ } else if (cap_setid == CAP_SETGID) {
kgid_t gid = make_kgid(ns->parent, id);
if (gid_eq(gid, file->f_cred->fsgid))
return true;
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index 6fbe811c7ad1..c8eac43267e9 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -17,7 +17,7 @@
#ifdef CONFIG_PROC_SYSCTL
-static void *get_uts(ctl_table *table, int write)
+static void *get_uts(struct ctl_table *table, int write)
{
char *which = table->data;
struct uts_namespace *uts_ns;
@@ -32,7 +32,7 @@ static void *get_uts(ctl_table *table, int write)
return which;
}
-static void put_uts(ctl_table *table, int write, void *which)
+static void put_uts(struct ctl_table *table, int write, void *which)
{
if (!write)
up_read(&uts_sem);
@@ -44,7 +44,7 @@ static void put_uts(ctl_table *table, int write, void *which)
* Special case of dostring for the UTS structure. This has locks
* to observe. Should this be in kernel/sys.c ????
*/
-static int proc_do_uts_string(ctl_table *table, int write,
+static int proc_do_uts_string(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table uts_table;
diff --git a/lib/idr.c b/lib/idr.c
index 2642fa8e424d..39158abebad1 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -18,12 +18,6 @@
* pointer or what ever, we treat it as a (void *). You can pass this
* id to a user for him to pass back at a later time. You then pass
* that id to this code and it returns your pointer.
-
- * You can release ids at any time. When all ids are released, most of
- * the memory is returned (we keep MAX_IDR_FREE) in a local pool so we
- * don't need to go to the memory "store" during an id allocate, just
- * so you don't need to be too concerned about locking and conflicts
- * with the slab allocator.
*/
#ifndef TEST // to test in user space...
@@ -151,7 +145,7 @@ static void idr_layer_rcu_free(struct rcu_head *head)
static inline void free_layer(struct idr *idr, struct idr_layer *p)
{
- if (idr->hint && idr->hint == p)
+ if (idr->hint == p)
RCU_INIT_POINTER(idr->hint, NULL);
call_rcu(&p->rcu_head, idr_layer_rcu_free);
}
@@ -249,7 +243,7 @@ static int sub_alloc(struct idr *idp, int *starting_id, struct idr_layer **pa,
id = (id | ((1 << (IDR_BITS * l)) - 1)) + 1;
/* if already at the top layer, we need to grow */
- if (id >= 1 << (idp->layers * IDR_BITS)) {
+ if (id > idr_max(idp->layers)) {
*starting_id = id;
return -EAGAIN;
}
@@ -562,6 +556,11 @@ void idr_remove(struct idr *idp, int id)
if (id < 0)
return;
+ if (id > idr_max(idp->layers)) {
+ idr_remove_warning(id);
+ return;
+ }
+
sub_remove(idp, (idp->layers - 1) * IDR_BITS, id);
if (idp->top && idp->top->count == 1 && (idp->layers > 1) &&
idp->top->ary[0]) {
@@ -579,16 +578,6 @@ void idr_remove(struct idr *idp, int id)
bitmap_clear(to_free->bitmap, 0, IDR_SIZE);
free_layer(idp, to_free);
}
- while (idp->id_free_cnt >= MAX_IDR_FREE) {
- p = get_from_free_list(idp);
- /*
- * Note: we don't call the rcu callback here, since the only
- * layers that fall into the freelist are those that have been
- * preallocated.
- */
- kmem_cache_free(idr_layer_cache, p);
- }
- return;
}
EXPORT_SYMBOL(idr_remove);
@@ -809,14 +798,12 @@ void *idr_replace(struct idr *idp, void *ptr, int id)
p = idp->top;
if (!p)
- return ERR_PTR(-EINVAL);
+ return ERR_PTR(-ENOENT);
- n = (p->layer+1) * IDR_BITS;
+ if (id > idr_max(p->layer + 1))
+ return ERR_PTR(-ENOENT);
- if (id >= (1 << n))
- return ERR_PTR(-EINVAL);
-
- n -= IDR_BITS;
+ n = p->layer * IDR_BITS;
while ((n > 0) && p) {
p = p->ary[(id >> n) & IDR_MASK];
n -= IDR_BITS;
@@ -1027,6 +1014,9 @@ void ida_remove(struct ida *ida, int id)
int n;
struct ida_bitmap *bitmap;
+ if (idr_id > idr_max(ida->idr.layers))
+ goto err;
+
/* clear full bits while looking up the leaf idr_layer */
while ((shift > 0) && p) {
n = (idr_id >> shift) & IDR_MASK;
@@ -1042,7 +1032,7 @@ void ida_remove(struct ida *ida, int id)
__clear_bit(n, p->bitmap);
bitmap = (void *)p->ary[n];
- if (!test_bit(offset, bitmap->bitmap))
+ if (!bitmap || !test_bit(offset, bitmap->bitmap))
goto err;
/* update bitmap and remove it if empty */
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index d64815651e90..3291a8e37490 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -27,6 +27,7 @@
#include <linux/radix-tree.h>
#include <linux/percpu.h>
#include <linux/slab.h>
+#include <linux/kmemleak.h>
#include <linux/notifier.h>
#include <linux/cpu.h>
#include <linux/string.h>
@@ -200,6 +201,11 @@ radix_tree_node_alloc(struct radix_tree_root *root)
rtp->nodes[rtp->nr - 1] = NULL;
rtp->nr--;
}
+ /*
+ * Update the allocation stack trace as this is more useful
+ * for debugging.
+ */
+ kmemleak_update_trace(ret);
}
if (ret == NULL)
ret = kmem_cache_alloc(radix_tree_node_cachep, gfp_mask);
diff --git a/mm/fremap.c b/mm/fremap.c
index 2c5646f11f41..72b8fa361433 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -149,6 +149,10 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
int has_write_lock = 0;
vm_flags_t vm_flags = 0;
+ pr_warn_once("%s (%d) uses deprecated remap_file_pages() syscall. "
+ "See Documentation/vm/remap_file_pages.txt.\n",
+ current->comm, current->pid);
+
if (prot)
return err;
/*
diff --git a/mm/kmemleak-test.c b/mm/kmemleak-test.c
index ff0d9779cec8..dcdcadb69533 100644
--- a/mm/kmemleak-test.c
+++ b/mm/kmemleak-test.c
@@ -18,6 +18,8 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#define pr_fmt(fmt) "kmemleak: " fmt
+
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -50,25 +52,25 @@ static int __init kmemleak_test_init(void)
printk(KERN_INFO "Kmemleak testing\n");
/* make some orphan objects */
- pr_info("kmemleak: kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL));
- pr_info("kmemleak: kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL));
+ pr_info("kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL));
+ pr_info("kmalloc(32) = %p\n", kmalloc(32, GFP_KERNEL));
+ pr_info("kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL));
+ pr_info("kmalloc(1024) = %p\n", kmalloc(1024, GFP_KERNEL));
+ pr_info("kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL));
+ pr_info("kmalloc(2048) = %p\n", kmalloc(2048, GFP_KERNEL));
+ pr_info("kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL));
+ pr_info("kmalloc(4096) = %p\n", kmalloc(4096, GFP_KERNEL));
#ifndef CONFIG_MODULES
- pr_info("kmemleak: kmem_cache_alloc(files_cachep) = %p\n",
+ pr_info("kmem_cache_alloc(files_cachep) = %p\n",
kmem_cache_alloc(files_cachep, GFP_KERNEL));
- pr_info("kmemleak: kmem_cache_alloc(files_cachep) = %p\n",
+ pr_info("kmem_cache_alloc(files_cachep) = %p\n",
kmem_cache_alloc(files_cachep, GFP_KERNEL));
#endif
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
- pr_info("kmemleak: vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
+ pr_info("vmalloc(64) = %p\n", vmalloc(64));
/*
* Add elements to a list. They should only appear as orphan
@@ -76,7 +78,7 @@ static int __init kmemleak_test_init(void)
*/
for (i = 0; i < 10; i++) {
elem = kzalloc(sizeof(*elem), GFP_KERNEL);
- pr_info("kmemleak: kzalloc(sizeof(*elem)) = %p\n", elem);
+ pr_info("kzalloc(sizeof(*elem)) = %p\n", elem);
if (!elem)
return -ENOMEM;
INIT_LIST_HEAD(&elem->list);
@@ -85,7 +87,7 @@ static int __init kmemleak_test_init(void)
for_each_possible_cpu(i) {
per_cpu(kmemleak_test_pointer, i) = kmalloc(129, GFP_KERNEL);
- pr_info("kmemleak: kmalloc(129) = %p\n",
+ pr_info("kmalloc(129) = %p\n",
per_cpu(kmemleak_test_pointer, i));
}
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 736ade31d1dc..3cda50c1e394 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -387,7 +387,7 @@ static void dump_object_info(struct kmemleak_object *object)
pr_notice(" min_count = %d\n", object->min_count);
pr_notice(" count = %d\n", object->count);
pr_notice(" flags = 0x%lx\n", object->flags);
- pr_notice(" checksum = %d\n", object->checksum);
+ pr_notice(" checksum = %u\n", object->checksum);
pr_notice(" backtrace:\n");
print_stack_trace(&trace, 4);
}
@@ -989,6 +989,40 @@ void __ref kmemleak_free_percpu(const void __percpu *ptr)
}
EXPORT_SYMBOL_GPL(kmemleak_free_percpu);
+/**
+ * kmemleak_update_trace - update object allocation stack trace
+ * @ptr: pointer to beginning of the object
+ *
+ * Override the object allocation stack trace for cases where the actual
+ * allocation place is not always useful.
+ */
+void __ref kmemleak_update_trace(const void *ptr)
+{
+ struct kmemleak_object *object;
+ unsigned long flags;
+
+ pr_debug("%s(0x%p)\n", __func__, ptr);
+
+ if (!kmemleak_enabled || IS_ERR_OR_NULL(ptr))
+ return;
+
+ object = find_and_get_object((unsigned long)ptr, 1);
+ if (!object) {
+#ifdef DEBUG
+ kmemleak_warn("Updating stack trace for unknown object at %p\n",
+ ptr);
+#endif
+ return;
+ }
+
+ spin_lock_irqsave(&object->lock, flags);
+ object->trace_len = __save_stack_trace(object->trace);
+ spin_unlock_irqrestore(&object->lock, flags);
+
+ put_object(object);
+}
+EXPORT_SYMBOL(kmemleak_update_trace);
+
/**
* kmemleak_not_leak - mark an allocated object as false positive
* @ptr: pointer to beginning of the object
diff --git a/mm/memblock.c b/mm/memblock.c
index 0aa0d2b07624..6d2f219a48b0 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -691,6 +691,7 @@ int __init_memblock memblock_free(phys_addr_t base, phys_addr_t size)
(unsigned long long)base + size - 1,
(void *)_RET_IP_);
+ kmemleak_free_part(__va(base), size);
return memblock_remove_range(&memblock.reserved, base, size);
}
@@ -1043,9 +1044,14 @@ static phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size,
align = SMP_CACHE_BYTES;
found = memblock_find_in_range_node(size, align, start, end, nid);
- if (found && !memblock_reserve(found, size))
+ if (found && !memblock_reserve(found, size)) {
+ /*
+ * The min_count is set to 0 so that memblock allocations are
+ * never reported as leaks.
+ */
+ kmemleak_alloc(__va(found), size, 0, 0);
return found;
-
+ }
return 0;
}
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a500cb0594c4..a9559b91603c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -676,9 +676,11 @@ static void disarm_static_keys(struct mem_cgroup *memcg)
static void drain_all_stock_async(struct mem_cgroup *memcg);
static struct mem_cgroup_per_zone *
-mem_cgroup_zoneinfo(struct mem_cgroup *memcg, int nid, int zid)
+mem_cgroup_zone_zoneinfo(struct mem_cgroup *memcg, struct zone *zone)
{
- VM_BUG_ON((unsigned)nid >= nr_node_ids);
+ int nid = zone_to_nid(zone);
+ int zid = zone_idx(zone);
+
return &memcg->nodeinfo[nid]->zoneinfo[zid];
}
@@ -688,12 +690,12 @@ struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *memcg)
}
static struct mem_cgroup_per_zone *
-page_cgroup_zoneinfo(struct mem_cgroup *memcg, struct page *page)
+mem_cgroup_page_zoneinfo(struct mem_cgroup *memcg, struct page *page)
{
int nid = page_to_nid(page);
int zid = page_zonenum(page);
- return mem_cgroup_zoneinfo(memcg, nid, zid);
+ return &memcg->nodeinfo[nid]->zoneinfo[zid];
}
static struct mem_cgroup_tree_per_zone *
@@ -711,11 +713,9 @@ soft_limit_tree_from_page(struct page *page)
return &soft_limit_tree.rb_tree_per_node[nid]->rb_tree_per_zone[zid];
}
-static void
-__mem_cgroup_insert_exceeded(struct mem_cgroup *memcg,
- struct mem_cgroup_per_zone *mz,
- struct mem_cgroup_tree_per_zone *mctz,
- unsigned long long new_usage_in_excess)
+static void __mem_cgroup_insert_exceeded(struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz,
+ unsigned long long new_usage_in_excess)
{
struct rb_node **p = &mctz->rb_root.rb_node;
struct rb_node *parent = NULL;
@@ -745,10 +745,8 @@ __mem_cgroup_insert_exceeded(struct mem_cgroup *memcg,
mz->on_tree = true;
}
-static void
-__mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
- struct mem_cgroup_per_zone *mz,
- struct mem_cgroup_tree_per_zone *mctz)
+static void __mem_cgroup_remove_exceeded(struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz)
{
if (!mz->on_tree)
return;
@@ -756,13 +754,11 @@ __mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
mz->on_tree = false;
}
-static void
-mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
- struct mem_cgroup_per_zone *mz,
- struct mem_cgroup_tree_per_zone *mctz)
+static void mem_cgroup_remove_exceeded(struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz)
{
spin_lock(&mctz->lock);
- __mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ __mem_cgroup_remove_exceeded(mz, mctz);
spin_unlock(&mctz->lock);
}
@@ -772,16 +768,14 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
unsigned long long excess;
struct mem_cgroup_per_zone *mz;
struct mem_cgroup_tree_per_zone *mctz;
- int nid = page_to_nid(page);
- int zid = page_zonenum(page);
- mctz = soft_limit_tree_from_page(page);
+ mctz = soft_limit_tree_from_page(page);
/*
* Necessary to update all ancestors when hierarchy is used.
* because their event counter is not touched.
*/
for (; memcg; memcg = parent_mem_cgroup(memcg)) {
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ mz = mem_cgroup_page_zoneinfo(memcg, page);
excess = res_counter_soft_limit_excess(&memcg->res);
/*
* We have to update the tree if mz is on RB-tree or
@@ -791,12 +785,12 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
spin_lock(&mctz->lock);
/* if on-tree, remove it */
if (mz->on_tree)
- __mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ __mem_cgroup_remove_exceeded(mz, mctz);
/*
* Insert again. mz->usage_in_excess will be updated.
* If excess is 0, no tree ops.
*/
- __mem_cgroup_insert_exceeded(memcg, mz, mctz, excess);
+ __mem_cgroup_insert_exceeded(mz, mctz, excess);
spin_unlock(&mctz->lock);
}
}
@@ -804,15 +798,15 @@ static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
static void mem_cgroup_remove_from_trees(struct mem_cgroup *memcg)
{
- int node, zone;
- struct mem_cgroup_per_zone *mz;
struct mem_cgroup_tree_per_zone *mctz;
+ struct mem_cgroup_per_zone *mz;
+ int nid, zid;
- for_each_node(node) {
- for (zone = 0; zone < MAX_NR_ZONES; zone++) {
- mz = mem_cgroup_zoneinfo(memcg, node, zone);
- mctz = soft_limit_tree_node_zone(node, zone);
- mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ for_each_node(nid) {
+ for (zid = 0; zid < MAX_NR_ZONES; zid++) {
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
+ mctz = soft_limit_tree_node_zone(nid, zid);
+ mem_cgroup_remove_exceeded(mz, mctz);
}
}
}
@@ -835,7 +829,7 @@ retry:
* we will to add it back at the end of reclaim to its correct
* position in the tree.
*/
- __mem_cgroup_remove_exceeded(mz->memcg, mz, mctz);
+ __mem_cgroup_remove_exceeded(mz, mctz);
if (!res_counter_soft_limit_excess(&mz->memcg->res) ||
!css_tryget(&mz->memcg->css))
goto retry;
@@ -946,8 +940,7 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
__this_cpu_add(memcg->stat->nr_page_events, nr_pages);
}
-unsigned long
-mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
+unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
{
struct mem_cgroup_per_zone *mz;
@@ -955,46 +948,38 @@ mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
return mz->lru_size[lru];
}
-static unsigned long
-mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
- unsigned int lru_mask)
+static unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
+ int nid,
+ unsigned int lru_mask)
{
- struct mem_cgroup_per_zone *mz;
- enum lru_list lru;
- unsigned long ret = 0;
-
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
-
- for_each_lru(lru) {
- if (BIT(lru) & lru_mask)
- ret += mz->lru_size[lru];
- }
- return ret;
-}
-
-static unsigned long
-mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
- int nid, unsigned int lru_mask)
-{
- u64 total = 0;
+ unsigned long nr = 0;
int zid;
- for (zid = 0; zid < MAX_NR_ZONES; zid++)
- total += mem_cgroup_zone_nr_lru_pages(memcg,
- nid, zid, lru_mask);
+ VM_BUG_ON((unsigned)nid >= nr_node_ids);
- return total;
+ for (zid = 0; zid < MAX_NR_ZONES; zid++) {
+ struct mem_cgroup_per_zone *mz;
+ enum lru_list lru;
+
+ for_each_lru(lru) {
+ if (!(BIT(lru) & lru_mask))
+ continue;
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
+ nr += mz->lru_size[lru];
+ }
+ }
+ return nr;
}
static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg,
unsigned int lru_mask)
{
+ unsigned long nr = 0;
int nid;
- u64 total = 0;
for_each_node_state(nid, N_MEMORY)
- total += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask);
- return total;
+ nr += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask);
+ return nr;
}
static bool mem_cgroup_event_ratelimit(struct mem_cgroup *memcg,
@@ -1242,11 +1227,9 @@ struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
int uninitialized_var(seq);
if (reclaim) {
- int nid = zone_to_nid(reclaim->zone);
- int zid = zone_idx(reclaim->zone);
struct mem_cgroup_per_zone *mz;
- mz = mem_cgroup_zoneinfo(root, nid, zid);
+ mz = mem_cgroup_zone_zoneinfo(root, reclaim->zone);
iter = &mz->reclaim_iter[reclaim->priority];
if (prev && reclaim->generation != iter->generation) {
iter->last_visited = NULL;
@@ -1353,7 +1336,7 @@ struct lruvec *mem_cgroup_zone_lruvec(struct zone *zone,
goto out;
}
- mz = mem_cgroup_zoneinfo(memcg, zone_to_nid(zone), zone_idx(zone));
+ mz = mem_cgroup_zone_zoneinfo(memcg, zone);
lruvec = &mz->lruvec;
out:
/*
@@ -1412,7 +1395,7 @@ struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct zone *zone)
if (!PageLRU(page) && !PageCgroupUsed(pc) && memcg != root_mem_cgroup)
pc->mem_cgroup = memcg = root_mem_cgroup;
- mz = page_cgroup_zoneinfo(memcg, page);
+ mz = mem_cgroup_page_zoneinfo(memcg, page);
lruvec = &mz->lruvec;
out:
/*
@@ -1550,7 +1533,7 @@ static unsigned long mem_cgroup_margin(struct mem_cgroup *memcg)
int mem_cgroup_swappiness(struct mem_cgroup *memcg)
{
/* root ? */
- if (!css_parent(&memcg->css))
+ if (mem_cgroup_disabled() || !css_parent(&memcg->css))
return vm_swappiness;
return memcg->swappiness;
@@ -4597,7 +4580,7 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
break;
} while (1);
}
- __mem_cgroup_remove_exceeded(mz->memcg, mz, mctz);
+ __mem_cgroup_remove_exceeded(mz, mctz);
excess = res_counter_soft_limit_excess(&mz->memcg->res);
/*
* One school of thought says that we should not add
@@ -4608,7 +4591,7 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
* term TODO.
*/
/* If excess == 0, no tree ops */
- __mem_cgroup_insert_exceeded(mz->memcg, mz, mctz, excess);
+ __mem_cgroup_insert_exceeded(mz, mctz, excess);
spin_unlock(&mctz->lock);
css_put(&mz->memcg->css);
loop++;
@@ -5305,7 +5288,7 @@ static int memcg_stat_show(struct seq_file *m, void *v)
for_each_online_node(nid)
for (zid = 0; zid < MAX_NR_ZONES; zid++) {
- mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
rstat = &mz->lruvec.reclaim_stat;
recent_rotated[0] += rstat->recent_rotated[0];
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 16bc9fa42998..1c16c228f35a 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -65,6 +65,8 @@
kernel is not always grateful with that.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/mempolicy.h>
#include <linux/mm.h>
#include <linux/highmem.h>
@@ -91,6 +93,7 @@
#include <linux/ctype.h>
#include <linux/mm_inline.h>
#include <linux/mmu_notifier.h>
+#include <linux/printk.h>
#include <asm/tlbflush.h>
#include <asm/uaccess.h>
@@ -2645,7 +2648,7 @@ void __init numa_policy_init(void)
node_set(prefer, interleave_nodes);
if (do_set_mempolicy(MPOL_INTERLEAVE, 0, &interleave_nodes))
- printk("numa_policy_init: interleaving failed\n");
+ pr_err("%s: interleaving failed\n", __func__);
check_numabalancing_enable();
}
diff --git a/mm/mempool.c b/mm/mempool.c
index 455d468c3a5d..e209c98c7203 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -10,6 +10,7 @@
#include <linux/mm.h>
#include <linux/slab.h>
+#include <linux/kmemleak.h>
#include <linux/export.h>
#include <linux/mempool.h>
#include <linux/blkdev.h>
@@ -222,6 +223,11 @@ repeat_alloc:
spin_unlock_irqrestore(&pool->lock, flags);
/* paired with rmb in mempool_free(), read comment there */
smp_wmb();
+ /*
+ * Update the allocation stack trace as this is more useful
+ * for debugging.
+ */
+ kmemleak_update_trace(element);
return element;
}
diff --git a/mm/mmap.c b/mm/mmap.c
index ced5efcdd4b6..129b847d30cc 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -6,6 +6,8 @@
* Address space accounting code <alan@lxorguk.ukuu.org.uk>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/backing-dev.h>
@@ -37,6 +39,7 @@
#include <linux/sched/sysctl.h>
#include <linux/notifier.h>
#include <linux/memory.h>
+#include <linux/printk.h>
#include <asm/uaccess.h>
#include <asm/cacheflush.h>
@@ -361,20 +364,20 @@ static int browse_rb(struct rb_root *root)
struct vm_area_struct *vma;
vma = rb_entry(nd, struct vm_area_struct, vm_rb);
if (vma->vm_start < prev) {
- printk("vm_start %lx prev %lx\n", vma->vm_start, prev);
+ pr_info("vm_start %lx prev %lx\n", vma->vm_start, prev);
bug = 1;
}
if (vma->vm_start < pend) {
- printk("vm_start %lx pend %lx\n", vma->vm_start, pend);
+ pr_info("vm_start %lx pend %lx\n", vma->vm_start, pend);
bug = 1;
}
if (vma->vm_start > vma->vm_end) {
- printk("vm_end %lx < vm_start %lx\n",
+ pr_info("vm_end %lx < vm_start %lx\n",
vma->vm_end, vma->vm_start);
bug = 1;
}
if (vma->rb_subtree_gap != vma_compute_subtree_gap(vma)) {
- printk("free gap %lx, correct %lx\n",
+ pr_info("free gap %lx, correct %lx\n",
vma->rb_subtree_gap,
vma_compute_subtree_gap(vma));
bug = 1;
@@ -388,7 +391,7 @@ static int browse_rb(struct rb_root *root)
for (nd = pn; nd; nd = rb_prev(nd))
j++;
if (i != j) {
- printk("backwards %d, forwards %d\n", j, i);
+ pr_info("backwards %d, forwards %d\n", j, i);
bug = 1;
}
return bug ? -1 : i;
@@ -423,17 +426,17 @@ static void validate_mm(struct mm_struct *mm)
i++;
}
if (i != mm->map_count) {
- printk("map_count %d vm_next %d\n", mm->map_count, i);
+ pr_info("map_count %d vm_next %d\n", mm->map_count, i);
bug = 1;
}
if (highest_address != mm->highest_vm_end) {
- printk("mm->highest_vm_end %lx, found %lx\n",
+ pr_info("mm->highest_vm_end %lx, found %lx\n",
mm->highest_vm_end, highest_address);
bug = 1;
}
i = browse_rb(&mm->mm_rb);
if (i != mm->map_count) {
- printk("map_count %d rb %d\n", mm->map_count, i);
+ pr_info("map_count %d rb %d\n", mm->map_count, i);
bug = 1;
}
BUG_ON(bug);
@@ -3280,7 +3283,7 @@ static struct notifier_block reserve_mem_nb = {
static int __meminit init_reserve_notifier(void)
{
if (register_hotmemory_notifier(&reserve_mem_nb))
- printk("Failed registering memory add/remove notifier for admin reserve");
+ pr_err("Failed registering memory add/remove notifier for admin reserve\n");
return 0;
}
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 04a9d94333a5..7ed58602e71b 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -197,7 +197,6 @@ unsigned long __init free_all_bootmem(void)
void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
unsigned long size)
{
- kmemleak_free_part(__va(physaddr), size);
memblock_free(physaddr, size);
}
@@ -212,7 +211,6 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
*/
void __init free_bootmem(unsigned long addr, unsigned long size)
{
- kmemleak_free_part(__va(addr), size);
memblock_free(addr, size);
}
diff --git a/mm/nommu.c b/mm/nommu.c
index 85f8d6698d48..b78e3a8f5ee7 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -13,6 +13,8 @@
* Copyright (c) 2007-2010 Paul Mundt <lethal@linux-sh.org>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/export.h>
#include <linux/mm.h>
#include <linux/vmacache.h>
@@ -32,6 +34,7 @@
#include <linux/syscalls.h>
#include <linux/audit.h>
#include <linux/sched/sysctl.h>
+#include <linux/printk.h>
#include <asm/uaccess.h>
#include <asm/tlb.h>
@@ -1246,7 +1249,7 @@ error_free:
return ret;
enomem:
- printk("Allocation of length %lu from process %d (%s) failed\n",
+ pr_err("Allocation of length %lu from process %d (%s) failed\n",
len, current->pid, current->comm);
show_free_areas(0);
return -ENOMEM;
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 533fa60c9ac1..7d9a4ef0a078 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1664,7 +1664,7 @@ void throttle_vm_writeout(gfp_t gfp_mask)
/*
* sysctl handler for /proc/sys/vm/dirty_writeback_centisecs
*/
-int dirty_writeback_centisecs_handler(ctl_table *table, int write,
+int dirty_writeback_centisecs_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
proc_dointvec(table, write, buffer, length, ppos);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a59bdb653958..4f59fa29eda8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3389,7 +3389,7 @@ early_param("numa_zonelist_order", setup_numa_zonelist_order);
/*
* sysctl handler for numa_zonelist_order
*/
-int numa_zonelist_order_handler(ctl_table *table, int write,
+int numa_zonelist_order_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length,
loff_t *ppos)
{
@@ -5805,7 +5805,7 @@ module_init(init_per_zone_wmark_min)
* that we can call two helper functions whenever min_free_kbytes
* changes.
*/
-int min_free_kbytes_sysctl_handler(ctl_table *table, int write,
+int min_free_kbytes_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
int rc;
@@ -5822,7 +5822,7 @@ int min_free_kbytes_sysctl_handler(ctl_table *table, int write,
}
#ifdef CONFIG_NUMA
-int sysctl_min_unmapped_ratio_sysctl_handler(ctl_table *table, int write,
+int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
struct zone *zone;
@@ -5838,7 +5838,7 @@ int sysctl_min_unmapped_ratio_sysctl_handler(ctl_table *table, int write,
return 0;
}
-int sysctl_min_slab_ratio_sysctl_handler(ctl_table *table, int write,
+int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
struct zone *zone;
@@ -5864,7 +5864,7 @@ int sysctl_min_slab_ratio_sysctl_handler(ctl_table *table, int write,
* minimum watermarks. The lowmem reserve ratio can only make sense
* if in function of the boot time zone sizes.
*/
-int lowmem_reserve_ratio_sysctl_handler(ctl_table *table, int write,
+int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
proc_dointvec_minmax(table, write, buffer, length, ppos);
@@ -5877,7 +5877,7 @@ int lowmem_reserve_ratio_sysctl_handler(ctl_table *table, int write,
* cpu. It is the fraction of total pages in each zone that a hot per cpu
* pagelist can have before it gets flushed back to buddy allocator.
*/
-int percpu_pagelist_fraction_sysctl_handler(ctl_table *table, int write,
+int percpu_pagelist_fraction_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
struct zone *zone;
diff --git a/mm/slub.c b/mm/slub.c
index fdf0fe4da9a9..b2b047327d76 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1726,7 +1726,7 @@ static void *get_partial(struct kmem_cache *s, gfp_t flags, int node,
struct kmem_cache_cpu *c)
{
void *object;
- int searchnode = (node == NUMA_NO_NODE) ? numa_node_id() : node;
+ int searchnode = (node == NUMA_NO_NODE) ? numa_mem_id() : node;
object = get_partial_node(s, get_node(s, searchnode), c, flags);
if (object || node != NUMA_NO_NODE)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 9149444f947d..71f23c0c1090 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -11,6 +11,8 @@
* Multiqueue VM started 5.8.00, Rik van Riel.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/gfp.h>
@@ -43,6 +45,7 @@
#include <linux/sysctl.h>
#include <linux/oom.h>
#include <linux/prefetch.h>
+#include <linux/printk.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>
@@ -83,6 +86,9 @@ struct scan_control {
/* Scan (total_size >> priority) pages at once */
int priority;
+ /* anon vs. file LRUs scanning "ratio" */
+ int swappiness;
+
/*
* The memory cgroup that hit its limit and as a result is the
* primary target of this reclaim invocation.
@@ -477,7 +483,7 @@ static pageout_t pageout(struct page *page, struct address_space *mapping,
if (page_has_private(page)) {
if (try_to_free_buffers(page)) {
ClearPageDirty(page);
- printk("%s: orphaned page\n", __func__);
+ pr_info("%s: orphaned page\n", __func__);
return PAGE_CLEAN;
}
}
@@ -1845,13 +1851,6 @@ static unsigned long shrink_list(enum lru_list lru, unsigned long nr_to_scan,
return shrink_inactive_list(nr_to_scan, lruvec, sc, lru);
}
-static int vmscan_swappiness(struct scan_control *sc)
-{
- if (global_reclaim(sc))
- return vm_swappiness;
- return mem_cgroup_swappiness(sc->target_mem_cgroup);
-}
-
enum scan_balance {
SCAN_EQUAL,
SCAN_FRACT,
@@ -1912,7 +1911,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
* using the memory controller's swap limit feature would be
* too expensive.
*/
- if (!global_reclaim(sc) && !vmscan_swappiness(sc)) {
+ if (!global_reclaim(sc) && !sc->swappiness) {
scan_balance = SCAN_FILE;
goto out;
}
@@ -1922,7 +1921,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
* system is close to OOM, scan both anon and file equally
* (unless the swappiness setting disagrees with swapping).
*/
- if (!sc->priority && vmscan_swappiness(sc)) {
+ if (!sc->priority && sc->swappiness) {
scan_balance = SCAN_EQUAL;
goto out;
}
@@ -1965,7 +1964,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
* With swappiness at 100, anonymous and file have the same priority.
* This scanning priority is essentially the inverse of IO cost.
*/
- anon_prio = vmscan_swappiness(sc);
+ anon_prio = sc->swappiness;
file_prio = 200 - anon_prio;
/*
@@ -2265,6 +2264,7 @@ static void shrink_zone(struct zone *zone, struct scan_control *sc)
lruvec = mem_cgroup_zone_lruvec(zone, memcg);
+ sc->swappiness = mem_cgroup_swappiness(memcg);
shrink_lruvec(lruvec, sc);
/*
@@ -2731,6 +2731,7 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *memcg,
.may_swap = !noswap,
.order = 0,
.priority = 0,
+ .swappiness = mem_cgroup_swappiness(memcg),
.target_mem_cgroup = memcg,
};
struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, memcg);
@@ -3372,7 +3373,10 @@ static int kswapd(void *p)
}
}
+ tsk->flags &= ~(PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD);
current->reclaim_state = NULL;
+ lockdep_clear_current_reclaim_state();
+
return 0;
}
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 32487ed18354..e66e710cc595 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -10,6 +10,7 @@ TARGETS += timers
TARGETS += vm
TARGETS += powerpc
TARGETS += user
+TARGETS += sysctl
all:
for TARGET in $(TARGETS); do \
diff --git a/tools/testing/selftests/sysctl/Makefile b/tools/testing/selftests/sysctl/Makefile
new file mode 100644
index 000000000000..0a92adaf0865
--- /dev/null
+++ b/tools/testing/selftests/sysctl/Makefile
@@ -0,0 +1,19 @@
+# Makefile for sysctl selftests.
+# Expects kernel.sysctl_writes_strict=1.
+
+# No binaries, but make sure arg-less "make" doesn't trigger "run_tests".
+all:
+
+# Allow specific tests to be selected.
+test_num:
+ @/bin/sh ./run_numerictests
+
+test_string:
+ @/bin/sh ./run_stringtests
+
+run_tests: all test_num test_string
+
+# Nothing to clean up.
+clean:
+
+.PHONY: all run_tests clean test_num test_string
diff --git a/tools/testing/selftests/sysctl/common_tests b/tools/testing/selftests/sysctl/common_tests
new file mode 100644
index 000000000000..17d534b1b7b4
--- /dev/null
+++ b/tools/testing/selftests/sysctl/common_tests
@@ -0,0 +1,109 @@
+#!/bin/sh
+
+TEST_FILE=$(mktemp)
+
+echo "== Testing sysctl behavior against ${TARGET} =="
+
+set_orig()
+{
+ echo "${ORIG}" > "${TARGET}"
+}
+
+set_test()
+{
+ echo "${TEST_STR}" > "${TARGET}"
+}
+
+verify()
+{
+ local seen
+ seen=$(cat "$1")
+ if [ "${seen}" != "${TEST_STR}" ]; then
+ return 1
+ fi
+ return 0
+}
+
+trap 'set_orig; rm -f "${TEST_FILE}"' EXIT
+
+rc=0
+
+echo -n "Writing test file ... "
+echo "${TEST_STR}" > "${TEST_FILE}"
+if ! verify "${TEST_FILE}"; then
+ echo "FAIL" >&2
+ exit 1
+else
+ echo "ok"
+fi
+
+echo -n "Checking sysctl is not set to test value ... "
+if verify "${TARGET}"; then
+ echo "FAIL" >&2
+ exit 1
+else
+ echo "ok"
+fi
+
+echo -n "Writing sysctl from shell ... "
+set_test
+if ! verify "${TARGET}"; then
+ echo "FAIL" >&2
+ exit 1
+else
+ echo "ok"
+fi
+
+echo -n "Resetting sysctl to original value ... "
+set_orig
+if verify "${TARGET}"; then
+ echo "FAIL" >&2
+ exit 1
+else
+ echo "ok"
+fi
+
+# Now that we've validated the sanity of "set_test" and "set_orig",
+# we can use those functions to set starting states before running
+# specific behavioral tests.
+
+echo -n "Writing entire sysctl in single write ... "
+set_orig
+dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null
+if ! verify "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+echo -n "Writing middle of sysctl after synchronized seek ... "
+set_test
+dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null
+if ! verify "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+echo -n "Writing beyond end of sysctl ... "
+set_orig
+dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null
+if verify "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+echo -n "Writing sysctl with multiple long writes ... "
+set_orig
+(perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \
+ dd of="${TARGET}" bs=50 2>/dev/null
+if verify "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
diff --git a/tools/testing/selftests/sysctl/run_numerictests b/tools/testing/selftests/sysctl/run_numerictests
new file mode 100644
index 000000000000..8510f93f2d14
--- /dev/null
+++ b/tools/testing/selftests/sysctl/run_numerictests
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+SYSCTL="/proc/sys"
+TARGET="${SYSCTL}/vm/swappiness"
+ORIG=$(cat "${TARGET}")
+TEST_STR=$(( $ORIG + 1 ))
+
+. ./common_tests
+
+exit $rc
diff --git a/tools/testing/selftests/sysctl/run_stringtests b/tools/testing/selftests/sysctl/run_stringtests
new file mode 100644
index 000000000000..90a9293d520c
--- /dev/null
+++ b/tools/testing/selftests/sysctl/run_stringtests
@@ -0,0 +1,77 @@
+#!/bin/sh
+
+SYSCTL="/proc/sys"
+TARGET="${SYSCTL}/kernel/domainname"
+ORIG=$(cat "${TARGET}")
+TEST_STR="Testing sysctl"
+
+. ./common_tests
+
+# Only string sysctls support seeking/appending.
+MAXLEN=65
+
+echo -n "Writing entire sysctl in short writes ... "
+set_orig
+dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null
+if ! verify "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+echo -n "Writing middle of sysctl after unsynchronized seek ... "
+set_test
+dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null
+if verify "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+echo -n "Checking sysctl maxlen is at least $MAXLEN ... "
+set_orig
+perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \
+ dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
+if ! grep -q B "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+echo -n "Checking sysctl keeps original string on overflow append ... "
+set_orig
+perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
+ dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null
+if grep -q B "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+echo -n "Checking sysctl stays NULL terminated on write ... "
+set_orig
+perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
+ dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
+if grep -q B "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+echo -n "Checking sysctl stays NULL terminated on overwrite ... "
+set_orig
+perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \
+ dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null
+if grep -q B "${TARGET}"; then
+ echo "FAIL" >&2
+ rc=1
+else
+ echo "ok"
+fi
+
+exit $rc
diff --git a/usr/Kconfig b/usr/Kconfig
index 642f503d3e9f..2d4c77eecf2e 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -98,80 +98,3 @@ config RD_LZ4
help
Support loading of a LZ4 encoded initial ramdisk or cpio buffer
If unsure, say N.
-
-choice
- prompt "Built-in initramfs compression mode" if INITRAMFS_SOURCE!=""
- help
- This option decides by which algorithm the builtin initramfs
- will be compressed. Several compression algorithms are
- available, which differ in efficiency, compression and
- decompression speed. Compression speed is only relevant
- when building a kernel. Decompression speed is relevant at
- each boot.
-
- If you have any problems with bzip2 or LZMA compressed
- initramfs, mail me (Alain Knaff) <alain@knaff.lu>.
-
- High compression options are mostly useful for users who are
- low on RAM, since it reduces the memory consumption during
- boot.
-
- If in doubt, select 'gzip'
-
-config INITRAMFS_COMPRESSION_NONE
- bool "None"
- help
- Do not compress the built-in initramfs at all. This may
- sound wasteful in space, but, you should be aware that the
- built-in initramfs will be compressed at a later stage
- anyways along with the rest of the kernel, on those
- architectures that support this.
- However, not compressing the initramfs may lead to slightly
- higher memory consumption during a short time at boot, while
- both the cpio image and the unpacked filesystem image will
- be present in memory simultaneously
-
-config INITRAMFS_COMPRESSION_GZIP
- bool "Gzip"
- depends on RD_GZIP
- help
- The old and tried gzip compression. It provides a good balance
- between compression ratio and decompression speed.
-
-config INITRAMFS_COMPRESSION_BZIP2
- bool "Bzip2"
- depends on RD_BZIP2
- help
- Its compression ratio and speed is intermediate.
- Decompression speed is slowest among the choices. The initramfs
- size is about 10% smaller with bzip2, in comparison to gzip.
- Bzip2 uses a large amount of memory. For modern kernels you
- will need at least 8MB RAM or more for booting.
-
-config INITRAMFS_COMPRESSION_LZMA
- bool "LZMA"
- depends on RD_LZMA
- help
- This algorithm's compression ratio is best.
- Decompression speed is between the other choices.
- Compression is slowest. The initramfs size is about 33%
- smaller with LZMA in comparison to gzip.
-
-config INITRAMFS_COMPRESSION_XZ
- bool "XZ"
- depends on RD_XZ
- help
- XZ uses the LZMA2 algorithm. The initramfs size is about 30%
- smaller with XZ in comparison to gzip. Decompression speed
- is better than that of bzip2 but worse than gzip and LZO.
- Compression is slow.
-
-config INITRAMFS_COMPRESSION_LZO
- bool "LZO"
- depends on RD_LZO
- help
- Its compression ratio is the poorest among the choices. The kernel
- size is about 10% bigger than gzip; however its speed
- (both compression and decompression) is the fastest.
-
-endchoice