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Merge tag 'v3.5-rc6' into next/dt

Browse Source 
New pull requests are based on Linux 3.5-rc6
This commit is contained in:
Arnd Bergmann 2012-07-10 14:05:56 +02:00
commit 14d597b74a
172 changed files with 1630 additions and 1005 deletions
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21
Documentation/ABI/testing/sysfs-block-rssd
View File

@ -1,26 +1,5 @@
What: /sys/block/rssd*/registers
Date: March 2012
KernelVersion: 3.3
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Dumps below driver information and
hardware registers.
- S ACTive
- Command Issue
- Completed
- PORT IRQ STAT
- HOST IRQ STAT
- Allocated
- Commands in Q
What: /sys/block/rssd*/status
Date: April 2012
KernelVersion: 3.4
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Indicates the status of the device.
What: /sys/block/rssd*/flags
Date: May 2012
KernelVersion: 3.5
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Dumps the flags in port and driver
data structure

129
Documentation/device-mapper/verity.txt
View File

@ -7,39 +7,39 @@ This target is read-only.
Construction Parameters
=======================
<version> <dev> <hash_dev> <hash_start>
<version> <dev> <hash_dev>
<data_block_size> <hash_block_size>
<num_data_blocks> <hash_start_block>
<algorithm> <digest> <salt>
<version>
This is the version number of the on-disk format.
This is the type of the on-disk hash format.
0 is the original format used in the Chromium OS.
The salt is appended when hashing, digests are stored continuously and
the rest of the block is padded with zeros.
The salt is appended when hashing, digests are stored continuously and
the rest of the block is padded with zeros.
1 is the current format that should be used for new devices.
The salt is prepended when hashing and each digest is
padded with zeros to the power of two.
The salt is prepended when hashing and each digest is
padded with zeros to the power of two.
<dev>
This is the device containing the data the integrity of which needs to be
This is the device containing data, the integrity of which needs to be
checked. It may be specified as a path, like /dev/sdaX, or a device number,
<major>:<minor>.
<hash_dev>
This is the device that that supplies the hash tree data. It may be
This is the device that supplies the hash tree data. It may be
specified similarly to the device path and may be the same device. If the
same device is used, the hash_start should be outside of the dm-verity
configured device size.
same device is used, the hash_start should be outside the configured
dm-verity device.
<data_block_size>
The block size on a data device. Each block corresponds to one digest on
the hash device.
The block size on a data device in bytes.
Each block corresponds to one digest on the hash device.
<hash_block_size>
The size of a hash block.
The size of a hash block in bytes.
<num_data_blocks>
The number of data blocks on the data device. Additional blocks are
@ -65,7 +65,7 @@ Construction Parameters
Theory of operation
===================
dm-verity is meant to be setup as part of a verified boot path. This
dm-verity is meant to be set up as part of a verified boot path. This
may be anything ranging from a boot using tboot or trustedgrub to just
booting from a known-good device (like a USB drive or CD).
@ -73,20 +73,20 @@ When a dm-verity device is configured, it is expected that the caller
has been authenticated in some way (cryptographic signatures, etc).
After instantiation, all hashes will be verified on-demand during
disk access. If they cannot be verified up to the root node of the
tree, the root hash, then the I/O will fail. This should identify
tree, the root hash, then the I/O will fail. This should detect
tampering with any data on the device and the hash data.
Cryptographic hashes are used to assert the integrity of the device on a
per-block basis. This allows for a lightweight hash computation on first read
into the page cache. Block hashes are stored linearly-aligned to the nearest
block the size of a page.
per-block basis. This allows for a lightweight hash computation on first read
into the page cache. Block hashes are stored linearly, aligned to the nearest
block size.
Hash Tree
---------
Each node in the tree is a cryptographic hash. If it is a leaf node, the hash
is of some block data on disk. If it is an intermediary node, then the hash is
of a number of child nodes.
of some data block on disk is calculated. If it is an intermediary node,
the hash of a number of child nodes is calculated.
Each entry in the tree is a collection of neighboring nodes that fit in one
block. The number is determined based on block_size and the size of the
@ -110,63 +110,23 @@ alg = sha256, num_blocks = 32768, block_size = 4096
On-disk format
==============
Below is the recommended on-disk format. The verity kernel code does not
read the on-disk header. It only reads the hash blocks which directly
follow the header. It is expected that a user-space tool will verify the
integrity of the verity_header and then call dmsetup with the correct
parameters. Alternatively, the header can be omitted and the dmsetup
parameters can be passed via the kernel command-line in a rooted chain
of trust where the command-line is verified.
The verity kernel code does not read the verity metadata on-disk header.
It only reads the hash blocks which directly follow the header.
It is expected that a user-space tool will verify the integrity of the
verity header.
The on-disk format is especially useful in cases where the hash blocks
are on a separate partition. The magic number allows easy identification
of the partition contents. Alternatively, the hash blocks can be stored
in the same partition as the data to be verified. In such a configuration
the filesystem on the partition would be sized a little smaller than
the full-partition, leaving room for the hash blocks.
struct superblock {
uint8_t signature[8]
"verity\0\0";
uint8_t version;
1 - current format
uint8_t data_block_bits;
log2(data block size)
uint8_t hash_block_bits;
log2(hash block size)
uint8_t pad1[1];
zero padding
uint16_t salt_size;
big-endian salt size
uint8_t pad2[2];
zero padding
uint32_t data_blocks_hi;
big-endian high 32 bits of the 64-bit number of data blocks
uint32_t data_blocks_lo;
big-endian low 32 bits of the 64-bit number of data blocks
uint8_t algorithm[16];
cryptographic algorithm
uint8_t salt[384];
salt (the salt size is specified above)
uint8_t pad3[88];
zero padding to 512-byte boundary
}
Alternatively, the header can be omitted and the dmsetup parameters can
be passed via the kernel command-line in a rooted chain of trust where
the command-line is verified.
Directly following the header (and with sector number padded to the next hash
block boundary) are the hash blocks which are stored a depth at a time
(starting from the root), sorted in order of increasing index.
The full specification of kernel parameters and on-disk metadata format
is available at the cryptsetup project's wiki page
http://code.google.com/p/cryptsetup/wiki/DMVerity
Status
======
V (for Valid) is returned if every check performed so far was valid.
@ -174,21 +134,22 @@ If any check failed, C (for Corruption) is returned.
Example
=======
Setup a device:
dmsetup create vroot --table \
"0 2097152 "\
"verity 1 /dev/sda1 /dev/sda2 4096 4096 2097152 1 "\
Set up a device:
# dmsetup create vroot --readonly --table \
"0 2097152 verity 1 /dev/sda1 /dev/sda2 4096 4096 262144 1 sha256 "\
"4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 "\
"1234000000000000000000000000000000000000000000000000000000000000"
A command line tool veritysetup is available to compute or verify
the hash tree or activate the kernel driver. This is available from
the LVM2 upstream repository and may be supplied as a package called
device-mapper-verity-tools:
git://sources.redhat.com/git/lvm2
http://sourceware.org/git/?p=lvm2.git
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/verity?cvsroot=lvm2
the hash tree or activate the kernel device. This is available from
the cryptsetup upstream repository http://code.google.com/p/cryptsetup/
(as a libcryptsetup extension).
veritysetup -a vroot /dev/sda1 /dev/sda2 \
4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
Create hash on the device:
# veritysetup format /dev/sda1 /dev/sda2
...
Root hash: 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
Activate the device:
# veritysetup create vroot /dev/sda1 /dev/sda2 \
4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076

1
Documentation/devicetree/bindings/input/fsl-mma8450.txt
View File

@ -2,6 +2,7 @@
Required properties:
- compatible : "fsl,mma8450".
- reg: the I2C address of MMA8450
Example:

4
Documentation/devicetree/bindings/mfd/mc13xxx.txt
View File

@ -46,8 +46,8 @@ Examples:
ecspi@70010000 { /* ECSPI1 */
fsl,spi-num-chipselects = <2>;
cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
<&gpio3 25 0>; /* GPIO4_25 */
cs-gpios = <&gpio4 24 0>, /* GPIO4_24 */
<&gpio4 25 0>; /* GPIO4_25 */
status = "okay";
pmic: mc13892@0 {

4
Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
View File

@ -29,6 +29,6 @@ esdhc@70008000 {
compatible = "fsl,imx51-esdhc";
reg = <0x70008000 0x4000>;
interrupts = <2>;
cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */
wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */
cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */
wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */
};

2
Documentation/devicetree/bindings/net/fsl-fec.txt
View File

@ -19,6 +19,6 @@ ethernet@83fec000 {
reg = <0x83fec000 0x4000>;
interrupts = <87>;
phy-mode = "mii";
phy-reset-gpios = <&gpio1 14 0>; /* GPIO2_14 */
phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
local-mac-address = [00 04 9F 01 1B B9];
};

4
Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
View File

@ -17,6 +17,6 @@ ecspi@70010000 {
reg = <0x70010000 0x4000>;
interrupts = <36>;
fsl,spi-num-chipselects = <2>;
cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
<&gpio3 25 0>; /* GPIO4_25 */
cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */
<&gpio3 25 0>; /* GPIO3_25 */
};

1
Documentation/devicetree/bindings/vendor-prefixes.txt
View File

@ -3,6 +3,7 @@ Device tree binding vendor prefix registry. Keep list in alphabetical order.
This isn't an exhaustive list, but you should add new prefixes to it before
using them to avoid name-space collisions.
ad Avionic Design GmbH
adi Analog Devices, Inc.
amcc Applied Micro Circuits Corporation (APM, formally AMCC)
apm Applied Micro Circuits Corporation (APM)

57
Documentation/prctl/no_new_privs.txt Normal file
View File

@ -0,0 +1,57 @@
The execve system call can grant a newly-started program privileges that
its parent did not have. The most obvious examples are setuid/setgid
programs and file capabilities. To prevent the parent program from
gaining these privileges as well, the kernel and user code must be
careful to prevent the parent from doing anything that could subvert the
child. For example:
- The dynamic loader handles LD_* environment variables differently if
a program is setuid.
- chroot is disallowed to unprivileged processes, since it would allow
/etc/passwd to be replaced from the point of view of a process that
inherited chroot.
- The exec code has special handling for ptrace.
These are all ad-hoc fixes. The no_new_privs bit (since Linux 3.5) is a
new, generic mechanism to make it safe for a process to modify its
execution environment in a manner that persists across execve. Any task
can set no_new_privs. Once the bit is set, it is inherited across fork,
clone, and execve and cannot be unset. With no_new_privs set, execve
promises not to grant the privilege to do anything that could not have
been done without the execve call. For example, the setuid and setgid
bits will no longer change the uid or gid; file capabilities will not
add to the permitted set, and LSMs will not relax constraints after
execve.
To set no_new_privs, use prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0).
Be careful, though: LSMs might also not tighten constraints on exec
in no_new_privs mode. (This means that setting up a general-purpose
service launcher to set no_new_privs before execing daemons may
interfere with LSM-based sandboxing.)
Note that no_new_privs does not prevent privilege changes that do not
involve execve. An appropriately privileged task can still call
setuid(2) and receive SCM_RIGHTS datagrams.
There are two main use cases for no_new_privs so far:
- Filters installed for the seccomp mode 2 sandbox persist across
execve and can change the behavior of newly-executed programs.
Unprivileged users are therefore only allowed to install such filters
if no_new_privs is set.
- By itself, no_new_privs can be used to reduce the attack surface
available to an unprivileged user. If everything running with a
given uid has no_new_privs set, then that uid will be unable to
escalate its privileges by directly attacking setuid, setgid, and
fcap-using binaries; it will need to compromise something without the
no_new_privs bit set first.
In the future, other potentially dangerous kernel features could become
available to unprivileged tasks if no_new_privs is set. In principle,
several options to unshare(2) and clone(2) would be safe when
no_new_privs is set, and no_new_privs + chroot is considerable less
dangerous than chroot by itself.

17
Documentation/virtual/kvm/api.txt
View File

@ -1930,6 +1930,23 @@ The "pte_enc" field provides a value that can OR'ed into the hash
PTE's RPN field (ie, it needs to be shifted left by 12 to OR it
into the hash PTE second double word).
4.75 KVM_IRQFD
Capability: KVM_CAP_IRQFD
Architectures: x86
Type: vm ioctl
Parameters: struct kvm_irqfd (in)
Returns: 0 on success, -1 on error
Allows setting an eventfd to directly trigger a guest interrupt.
kvm_irqfd.fd specifies the file descriptor to use as the eventfd and
kvm_irqfd.gsi specifies the irqchip pin toggled by this event. When
an event is tiggered on the eventfd, an interrupt is injected into
the guest using the specified gsi pin. The irqfd is removed using
the KVM_IRQFD_FLAG_DEASSIGN flag, specifying both kvm_irqfd.fd
and kvm_irqfd.gsi.
5. The kvm_run structure
------------------------

4
MAINTAINERS
View File

@ -4654,8 +4654,8 @@ L: netfilter@vger.kernel.org
L: coreteam@netfilter.org
W: http://www.netfilter.org/
W: http://www.iptables.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next-2.6.git
T: git git://1984.lsi.us.es/nf
T: git git://1984.lsi.us.es/nf-next
S: Supported
F: include/linux/netfilter*
F: include/linux/netfilter/

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 5
SUBLEVEL = 0
EXTRAVERSION = -rc5
EXTRAVERSION = -rc6
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*

2
arch/arm/include/asm/atomic.h
View File

@ -243,7 +243,7 @@ typedef struct {
#define ATOMIC64_INIT(i) { (i) }
static inline u64 atomic64_read(atomic64_t *v)
static inline u64 atomic64_read(const atomic64_t *v)
{
u64 result;

18
arch/arm/include/asm/domain.h
View File

@ -60,13 +60,13 @@
#ifndef __ASSEMBLY__
#ifdef CONFIG_CPU_USE_DOMAINS
#define set_domain(x) \
do { \
__asm__ __volatile__( \
"mcr p15, 0, %0, c3, c0 @ set domain" \
: : "r" (x)); \
isb(); \
} while (0)
static inline void set_domain(unsigned val)
{
asm volatile(
"mcr p15, 0, %0, c3, c0 @ set domain"
: : "r" (val));
isb();
}
#define modify_domain(dom,type) \
do { \
@ -78,8 +78,8 @@
} while (0)
#else
#define set_domain(x) do { } while (0)
#define modify_domain(dom,type) do { } while (0)
static inline void set_domain(unsigned val) { }
static inline void modify_domain(unsigned dom, unsigned type) { }
#endif
/*

5
arch/arm/include/asm/thread_info.h
View File

@ -148,7 +148,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
#define TIF_SYSCALL_TRACE 8
#define TIF_SYSCALL_AUDIT 9
#define TIF_SYSCALL_RESTARTSYS 10
#define TIF_POLLING_NRFLAG 16
#define TIF_USING_IWMMXT 17
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
@ -164,11 +163,9 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
#define _TIF_SYSCALL_RESTARTSYS (1 << TIF_SYSCALL_RESTARTSYS)
/* Checks for any syscall work in entry-common.S */
#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
_TIF_SYSCALL_RESTARTSYS)
#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
/*
* Change these and you break ASM code in entry-common.S

4
arch/arm/kernel/kprobes-test-arm.c
View File

@ -187,8 +187,8 @@ void kprobe_arm_test_cases(void)
TEST_BF_R ("mov pc, r",0,2f,"")
TEST_BF_RR("mov pc, r",0,2f,", asl r",1,0,"")
TEST_BB( "sub pc, pc, #1b-2b+8")
#if __LINUX_ARM_ARCH__ >= 6
TEST_BB( "sub pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before ARMv6 */
#if __LINUX_ARM_ARCH__ == 6 && !defined(CONFIG_CPU_V7)
TEST_BB( "sub pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before and after ARMv6 */
#endif
TEST_BB_R( "sub pc, pc, r",14, 1f-2f+8,"")
TEST_BB_R( "rsb pc, r",14,1f-2f+8,", pc")

2
arch/arm/kernel/perf_event.c
View File

@ -503,7 +503,7 @@ __hw_perf_event_init(struct perf_event *event)
event_requires_mode_exclusion(&event->attr)) {
pr_debug("ARM performance counters do not support "
"mode exclusion\n");
return -EPERM;
return -EOPNOTSUPP;
}
/*

3
arch/arm/kernel/ptrace.c
View File

@ -25,7 +25,6 @@
#include <linux/regset.h>
#include <linux/audit.h>
#include <linux/tracehook.h>
#include <linux/unistd.h>
#include <asm/pgtable.h>
#include <asm/traps.h>
@ -918,8 +917,6 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0,
regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);
if (why == 0 && test_and_clear_thread_flag(TIF_SYSCALL_RESTARTSYS))
scno = __NR_restart_syscall - __NR_SYSCALL_BASE;
if (!test_thread_flag(TIF_SYSCALL_TRACE))
return scno;

46
arch/arm/kernel/signal.c
View File

@ -27,6 +27,7 @@
*/
#define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE))
#define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE))
#define SWI_SYS_RESTART (0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE)
/*
* With EABI, the syscall number has to be loaded into r7.
@ -46,6 +47,18 @@ const unsigned long sigreturn_codes[7] = {
MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN,
};
/*
* Either we support OABI only, or we have EABI with the OABI
* compat layer enabled. In the later case we don't know if
* user space is EABI or not, and if not we must not clobber r7.
* Always using the OABI syscall solves that issue and works for
* all those cases.
*/
const unsigned long syscall_restart_code[2] = {
SWI_SYS_RESTART, /* swi __NR_restart_syscall */
0xe49df004, /* ldr pc, [sp], #4 */
};
/*
* atomically swap in the new signal mask, and wait for a signal.
*/
@ -592,10 +605,12 @@ static void do_signal(struct pt_regs *regs, int syscall)
case -ERESTARTNOHAND:
case -ERESTARTSYS:
case -ERESTARTNOINTR:
case -ERESTART_RESTARTBLOCK:
regs->ARM_r0 = regs->ARM_ORIG_r0;
regs->ARM_pc = restart_addr;
break;
case -ERESTART_RESTARTBLOCK:
regs->ARM_r0 = -EINTR;
break;
}
}
@ -611,14 +626,12 @@ static void do_signal(struct pt_regs *regs, int syscall)
* debugger has chosen to restart at a different PC.
*/
if (regs->ARM_pc == restart_addr) {
if (retval == -ERESTARTNOHAND ||
retval == -ERESTART_RESTARTBLOCK
if (retval == -ERESTARTNOHAND
|| (retval == -ERESTARTSYS
&& !(ka.sa.sa_flags & SA_RESTART))) {
regs->ARM_r0 = -EINTR;
regs->ARM_pc = continue_addr;
}
clear_thread_flag(TIF_SYSCALL_RESTARTSYS);
}
handle_signal(signr, &ka, &info, regs);
@ -632,8 +645,29 @@ static void do_signal(struct pt_regs *regs, int syscall)
* ignore the restart.
*/
if (retval == -ERESTART_RESTARTBLOCK
&& regs->ARM_pc == restart_addr)
set_thread_flag(TIF_SYSCALL_RESTARTSYS);
&& regs->ARM_pc == continue_addr) {
if (thumb_mode(regs)) {
regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE;
regs->ARM_pc -= 2;
} else {
#if defined(CONFIG_AEABI) && !defined(CONFIG_OABI_COMPAT)
regs->ARM_r7 = __NR_restart_syscall;
regs->ARM_pc -= 4;
#else
u32 __user *usp;
regs->ARM_sp -= 4;
usp = (u32 __user *)regs->ARM_sp;
if (put_user(regs->ARM_pc, usp) == 0) {
regs->ARM_pc = KERN_RESTART_CODE;
} else {
regs->ARM_sp += 4;
force_sigsegv(0, current);
}
#endif
}
}
}
restore_saved_sigmask();

2
arch/arm/kernel/signal.h
View File

@ -8,5 +8,7 @@
* published by the Free Software Foundation.
*/
#define KERN_SIGRETURN_CODE (CONFIG_VECTORS_BASE + 0x00000500)
#define KERN_RESTART_CODE (KERN_SIGRETURN_CODE + sizeof(sigreturn_codes))
extern const unsigned long sigreturn_codes[7];
extern const unsigned long syscall_restart_code[2];

2
arch/arm/kernel/traps.c
View File

@ -820,6 +820,8 @@ void __init early_trap_init(void *vectors_base)
*/
memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE),
sigreturn_codes, sizeof(sigreturn_codes));
memcpy((void *)(vectors + KERN_RESTART_CODE - CONFIG_VECTORS_BASE),
syscall_restart_code, sizeof(syscall_restart_code));
flush_icache_range(vectors, vectors + PAGE_SIZE);
modify_domain(DOMAIN_USER, DOMAIN_CLIENT);

2
arch/arm/kernel/vmlinux.lds.S
View File

@ -183,7 +183,9 @@ SECTIONS
}
#endif
#ifdef CONFIG_SMP
PERCPU_SECTION(L1_CACHE_BYTES)
#endif
#ifdef CONFIG_XIP_KERNEL
__data_loc = ALIGN(4); /* location in binary */

1
arch/arm/mach-dove/include/mach/bridge-regs.h
View File

@ -50,5 +50,6 @@
#define POWER_MANAGEMENT (BRIDGE_VIRT_BASE | 0x011c)
#define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300)
#define TIMER_PHYS_BASE (BRIDGE_PHYS_BASE | 0x0300)
#endif

1
arch/arm/mach-dove/include/mach/dove.h
View File

@ -78,6 +78,7 @@
/* North-South Bridge */
#define BRIDGE_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0x20000)
#define BRIDGE_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE | 0x20000)
/* Cryptographic Engine */
#define DOVE_CRYPT_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE | 0x30000)

9
arch/arm/mach-imx/clk-imx35.c
View File

@ -201,7 +201,6 @@ int __init mx35_clocks_init()
pr_err("i.MX35 clk %d: register failed with %ld\n",
i, PTR_ERR(clk[i]));
clk_register_clkdev(clk[pata_gate], NULL, "pata_imx");
clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0");
clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1");
@ -264,6 +263,14 @@ int __init mx35_clocks_init()
clk_prepare_enable(clk[iim_gate]);
clk_prepare_enable(clk[emi_gate]);
/*
* SCC is needed to boot via mmc after a watchdog reset. The clock code
* before conversion to common clk also enabled UART1 (which isn't
* handled here and not needed for mmc) and IIM (which is enabled
* unconditionally above).
*/
clk_prepare_enable(clk[scc_gate]);
imx_print_silicon_rev("i.MX35", mx35_revision());
#ifdef CONFIG_MXC_USE_EPIT

2
arch/arm/mach-imx/mach-imx27_visstrim_m10.c
View File

@ -38,7 +38,7 @@
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/system.h>
#include <asm/system_info.h>
#include <mach/common.h>
#include <mach/iomux-mx27.h>

29
arch/arm/mach-mmp/include/mach/gpio-pxa.h
View File

@ -1,29 +0,0 @@
#ifndef __ASM_MACH_GPIO_PXA_H
#define __ASM_MACH_GPIO_PXA_H
#include <mach/addr-map.h>
#include <mach/cputype.h>
#include <mach/irqs.h>
#define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000)
#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
#define GPIO_REG(x) (*(volatile u32 *)(GPIO_REGS_VIRT + (x)))
#define gpio_to_bank(gpio) ((gpio) >> 5)
/* NOTE: these macros are defined here to make optimization of
* gpio_{get,set}_value() to work when 'gpio' is a constant.
* Usage of these macros otherwise is no longer recommended,
* use generic GPIO API whenever possible.
*/
#define GPIO_bit(gpio) (1 << ((gpio) & 0x1f))
#define GPLR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00)
#define GPDR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c)
#define GPSR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18)
#define GPCR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24)
#include <plat/gpio-pxa.h>
#endif /* __ASM_MACH_GPIO_PXA_H */

1
arch/arm/mach-mv78xx0/include/mach/bridge-regs.h
View File

@ -31,5 +31,6 @@
#define IRQ_MASK_HIGH_OFF 0x0014
#define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300)
#define TIMER_PHYS_BASE (BRIDGE_PHYS_BASE | 0x0300)
#endif

2
arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
View File

@ -42,6 +42,7 @@
#define MV78XX0_CORE0_REGS_PHYS_BASE 0xf1020000
#define MV78XX0_CORE1_REGS_PHYS_BASE 0xf1024000
#define MV78XX0_CORE_REGS_VIRT_BASE 0xfe400000
#define MV78XX0_CORE_REGS_PHYS_BASE 0xfe400000
#define MV78XX0_CORE_REGS_SIZE SZ_16K
#define MV78XX0_PCIE_IO_PHYS_BASE(i) (0xf0800000 + ((i) << 20))
@ -59,6 +60,7 @@
* Core-specific peripheral registers.
*/
#define BRIDGE_VIRT_BASE (MV78XX0_CORE_REGS_VIRT_BASE)
#define BRIDGE_PHYS_BASE (MV78XX0_CORE_REGS_PHYS_BASE)
/*
* Register Map

11
arch/arm/mach-mxs/mach-apx4devkit.c
View File

@ -205,6 +205,16 @@ static int apx4devkit_phy_fixup(struct phy_device *phy)
return 0;
}
static void __init apx4devkit_fec_phy_clk_enable(void)
{
struct clk *clk;
/* Enable fec phy clock */
clk = clk_get_sys("enet_out", NULL);
if (!IS_ERR(clk))
clk_prepare_enable(clk);
}
static void __init apx4devkit_init(void)
{
mx28_soc_init();
@ -225,6 +235,7 @@ static void __init apx4devkit_init(void)
phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
apx4devkit_phy_fixup);
apx4devkit_fec_phy_clk_enable();
mx28_add_fec(0, &mx28_fec_pdata);
mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata);

2
arch/arm/mach-omap2/board-overo.c
View File

@ -494,8 +494,8 @@ static void __init overo_init(void)
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap_hsmmc_init(mmc);
overo_i2c_init();
omap_hsmmc_init(mmc);
omap_display_init(&overo_dss_data);
omap_serial_init();
omap_sdrc_init(mt46h32m32lf6_sdrc_params,

28
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
View File

@ -1928,7 +1928,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp1_sdma_reqs[] = {
static struct omap_hwmod_opt_clk mcbsp1_opt_clks[] = {
{ .role = "pad_fck", .clk = "pad_clks_ck" },
{ .role = "prcm_clk", .clk = "mcbsp1_sync_mux_ck" },
{ .role = "prcm_fck", .clk = "mcbsp1_sync_mux_ck" },
};
static struct omap_hwmod omap44xx_mcbsp1_hwmod = {
@ -1963,7 +1963,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp2_sdma_reqs[] = {
static struct omap_hwmod_opt_clk mcbsp2_opt_clks[] = {
{ .role = "pad_fck", .clk = "pad_clks_ck" },
{ .role = "prcm_clk", .clk = "mcbsp2_sync_mux_ck" },
{ .role = "prcm_fck", .clk = "mcbsp2_sync_mux_ck" },
};
static struct omap_hwmod omap44xx_mcbsp2_hwmod = {
@ -1998,7 +1998,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp3_sdma_reqs[] = {
static struct omap_hwmod_opt_clk mcbsp3_opt_clks[] = {
{ .role = "pad_fck", .clk = "pad_clks_ck" },
{ .role = "prcm_clk", .clk = "mcbsp3_sync_mux_ck" },
{ .role = "prcm_fck", .clk = "mcbsp3_sync_mux_ck" },
};
static struct omap_hwmod omap44xx_mcbsp3_hwmod = {
@ -2033,7 +2033,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp4_sdma_reqs[] = {
static struct omap_hwmod_opt_clk mcbsp4_opt_clks[] = {
{ .role = "pad_fck", .clk = "pad_clks_ck" },
{ .role = "prcm_clk", .clk = "mcbsp4_sync_mux_ck" },
{ .role = "prcm_fck", .clk = "mcbsp4_sync_mux_ck" },
};
static struct omap_hwmod omap44xx_mcbsp4_hwmod = {
@ -3864,7 +3864,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_2 = {
};
/* usb_host_fs -> l3_main_2 */
static struct omap_hwmod_ocp_if omap44xx_usb_host_fs__l3_main_2 = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_usb_host_fs__l3_main_2 = {
.master = &omap44xx_usb_host_fs_hwmod,
.slave = &omap44xx_l3_main_2_hwmod,
.clk = "l3_div_ck",
@ -3922,7 +3922,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_3 = {
};
/* aess -> l4_abe */
static struct omap_hwmod_ocp_if omap44xx_aess__l4_abe = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_aess__l4_abe = {
.master = &omap44xx_aess_hwmod,
.slave = &omap44xx_l4_abe_hwmod,
.clk = "ocp_abe_iclk",
@ -4013,7 +4013,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_addrs[] = {
};
/* l4_abe -> aess */
static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess = {
.master = &omap44xx_l4_abe_hwmod,
.slave = &omap44xx_aess_hwmod,
.clk = "ocp_abe_iclk",
@ -4031,7 +4031,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_dma_addrs[] = {
};
/* l4_abe -> aess (dma) */
static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess_dma = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess_dma = {
.master = &omap44xx_l4_abe_hwmod,
.slave = &omap44xx_aess_hwmod,
.clk = "ocp_abe_iclk",
@ -5857,7 +5857,7 @@ static struct omap_hwmod_addr_space omap44xx_usb_host_fs_addrs[] = {
};
/* l4_cfg -> usb_host_fs */
static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_host_fs = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_cfg__usb_host_fs = {
.master = &omap44xx_l4_cfg_hwmod,
.slave = &omap44xx_usb_host_fs_hwmod,
.clk = "l4_div_ck",
@ -6014,13 +6014,13 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_iva__l3_main_2,
&omap44xx_l3_main_1__l3_main_2,
&omap44xx_l4_cfg__l3_main_2,
&omap44xx_usb_host_fs__l3_main_2,
/* &omap44xx_usb_host_fs__l3_main_2, */
&omap44xx_usb_host_hs__l3_main_2,
&omap44xx_usb_otg_hs__l3_main_2,
&omap44xx_l3_main_1__l3_main_3,
&omap44xx_l3_main_2__l3_main_3,
&omap44xx_l4_cfg__l3_main_3,
&omap44xx_aess__l4_abe,
/* &omap44xx_aess__l4_abe, */
&omap44xx_dsp__l4_abe,
&omap44xx_l3_main_1__l4_abe,
&omap44xx_mpu__l4_abe,
@ -6029,8 +6029,8 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_l4_cfg__l4_wkup,
&omap44xx_mpu__mpu_private,
&omap44xx_l4_cfg__ocp_wp_noc,
&omap44xx_l4_abe__aess,
&omap44xx_l4_abe__aess_dma,
/* &omap44xx_l4_abe__aess, */
/* &omap44xx_l4_abe__aess_dma, */
&omap44xx_l3_main_2__c2c,
&omap44xx_l4_wkup__counter_32k,
&omap44xx_l4_cfg__ctrl_module_core,
@ -6136,7 +6136,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_l4_per__uart2,
&omap44xx_l4_per__uart3,
&omap44xx_l4_per__uart4,
&omap44xx_l4_cfg__usb_host_fs,
/* &omap44xx_l4_cfg__usb_host_fs, */
&omap44xx_l4_cfg__usb_host_hs,
&omap44xx_l4_cfg__usb_otg_hs,
&omap44xx_l4_cfg__usb_tll_hs,

2
arch/arm/mach-omap2/twl-common.c
View File

@ -32,6 +32,7 @@
#include "twl-common.h"
#include "pm.h"
#include "voltage.h"
#include "mux.h"
static struct i2c_board_info __initdata pmic_i2c_board_info = {
.addr = 0x48,
@ -77,6 +78,7 @@ void __init omap4_pmic_init(const char *pmic_type,
struct twl6040_platform_data *twl6040_data, int twl6040_irq)
{
/* PMIC part*/
omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
strncpy(omap4_i2c1_board_info[0].type, pmic_type,
sizeof(omap4_i2c1_board_info[0].type));
omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N;

15
arch/arm/mach-pxa/hx4700.c
View File

@ -127,7 +127,11 @@ static unsigned long hx4700_pin_config[] __initdata = {
GPIO19_SSP2_SCLK,
GPIO86_SSP2_RXD,
GPIO87_SSP2_TXD,
GPIO88_GPIO,
GPIO88_GPIO | MFP_LPM_DRIVE_HIGH, /* TSC2046_CS */
/* BQ24022 Regulator */
GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT, /* BQ24022_nCHARGE_EN */
GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT, /* BQ24022_ISET2 */
/* HX4700 specific input GPIOs */
GPIO12_GPIO | WAKEUP_ON_EDGE_RISE, /* ASIC3_IRQ */
@ -135,6 +139,10 @@ static unsigned long hx4700_pin_config[] __initdata = {
GPIO14_GPIO, /* nWLAN_IRQ */
/* HX4700 specific output GPIOs */
GPIO61_GPIO | MFP_LPM_DRIVE_HIGH, /* W3220_nRESET */
GPIO71_GPIO | MFP_LPM_DRIVE_HIGH, /* ASIC3_nRESET */
GPIO81_GPIO | MFP_LPM_DRIVE_HIGH, /* CPU_GP_nRESET */
GPIO116_GPIO | MFP_LPM_DRIVE_HIGH, /* CPU_HW_nRESET */
GPIO102_GPIO | MFP_LPM_DRIVE_LOW, /* SYNAPTICS_POWER_ON */
GPIO10_GPIO, /* GSM_IRQ */
@ -872,14 +880,19 @@ static struct gpio global_gpios[] = {
{ GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
{ GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
{ GPIO32_HX4700_RS232_ON, GPIOF_OUT_INIT_HIGH, "RS232_ON" },
{ GPIO61_HX4700_W3220_nRESET, GPIOF_OUT_INIT_HIGH, "W3220_nRESET" },
{ GPIO71_HX4700_ASIC3_nRESET, GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
{ GPIO81_HX4700_CPU_GP_nRESET, GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" },
{ GPIO82_HX4700_EUART_RESET, GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
{ GPIO116_HX4700_CPU_HW_nRESET, GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" },
};
static void __init hx4700_init(void)
{
int ret;
PCFR = PCFR_GPR_EN | PCFR_OPDE;
pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));

1
arch/arm/mach-versatile/pci.c
View File

@ -339,7 +339,6 @@ void __init pci_versatile_preinit(void)
static int __init versatile_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq;
int devslot = PCI_SLOT(dev->devfn);
/* slot, pin, irq
* 24 1 27

2
arch/arm/mm/mm.h
View File

@ -64,7 +64,7 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
#ifdef CONFIG_ZONE_DMA
extern phys_addr_t arm_dma_limit;
#else
#define arm_dma_limit ((u32)~0)
#define arm_dma_limit ((phys_addr_t)~0)
#endif
extern phys_addr_t arm_lowmem_limit;

74
arch/arm/mm/mmu.c
View File

@ -791,6 +791,79 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
}
}
#ifndef CONFIG_ARM_LPAE
/*
* The Linux PMD is made of two consecutive section entries covering 2MB
* (see definition in include/asm/pgtable-2level.h). However a call to
* create_mapping() may optimize static mappings by using individual
* 1MB section mappings. This leaves the actual PMD potentially half
* initialized if the top or bottom section entry isn't used, leaving it
* open to problems if a subsequent ioremap() or vmalloc() tries to use
* the virtual space left free by that unused section entry.
*
* Let's avoid the issue by inserting dummy vm entries covering the unused
* PMD halves once the static mappings are in place.
*/
static void __init pmd_empty_section_gap(unsigned long addr)
{
struct vm_struct *vm;
vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm));
vm->addr = (void *)addr;
vm->size = SECTION_SIZE;
vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING;
vm->caller = pmd_empty_section_gap;
vm_area_add_early(vm);
}
static void __init fill_pmd_gaps(void)
{
struct vm_struct *vm;
unsigned long addr, next = 0;
pmd_t *pmd;
/* we're still single threaded hence no lock needed here */
for (vm = vmlist; vm; vm = vm->next) {
if (!(vm->flags & VM_ARM_STATIC_MAPPING))
continue;
addr = (unsigned long)vm->addr;
if (addr < next)
continue;
/*
* Check if this vm starts on an odd section boundary.
* If so and the first section entry for this PMD is free
* then we block the corresponding virtual address.
*/
if ((addr & ~PMD_MASK) == SECTION_SIZE) {
pmd = pmd_off_k(addr);
if (pmd_none(*pmd))
pmd_empty_section_gap(addr & PMD_MASK);
}
/*
* Then check if this vm ends on an odd section boundary.
* If so and the second section entry for this PMD is empty
* then we block the corresponding virtual address.
*/
addr += vm->size;
if ((addr & ~PMD_MASK) == SECTION_SIZE) {
pmd = pmd_off_k(addr) + 1;
if (pmd_none(*pmd))
pmd_empty_section_gap(addr);
}
/* no need to look at any vm entry until we hit the next PMD */
next = (addr + PMD_SIZE - 1) & PMD_MASK;
}
}
#else
#define fill_pmd_gaps() do { } while (0)
#endif
static void * __initdata vmalloc_min =
(void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET);
@ -1072,6 +1145,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
*/
if (mdesc->map_io)
mdesc->map_io();
fill_pmd_gaps();
/*
* Finally flush the caches and tlb to ensure that we're in a

2
arch/powerpc/kvm/book3s_hv_rmhandlers.S
View File

@ -810,7 +810,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
lwz r3,VCORE_NAPPING_THREADS(r5)
lwz r4,VCPU_PTID(r9)
li r0,1
sldi r0,r0,r4
sld r0,r0,r4
andc. r3,r3,r0 /* no sense IPI'ing ourselves */
beq 43f
mulli r4,r4,PACA_SIZE /* get paca for thread 0 */

2
arch/powerpc/xmon/xmon.c
View File

@ -971,7 +971,7 @@ static int cpu_cmd(void)
/* print cpus waiting or in xmon */
printf("cpus stopped:");
count = 0;
for (cpu = 0; cpu < NR_CPUS; ++cpu) {
for_each_possible_cpu(cpu) {
if (cpumask_test_cpu(cpu, &cpus_in_xmon)) {
if (count == 0)
printf(" %x", cpu);

3
arch/x86/kvm/mmu.c
View File

@ -3934,6 +3934,9 @@ static void kvm_mmu_remove_some_alloc_mmu_pages(struct kvm *kvm,
{
struct kvm_mmu_page *page;
if (list_empty(&kvm->arch.active_mmu_pages))
return;
page = container_of(kvm->arch.active_mmu_pages.prev,
struct kvm_mmu_page, link);
kvm_mmu_prepare_zap_page(kvm, page, invalid_list);

9
block/blk-cgroup.c
View File

@ -125,12 +125,8 @@ static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q)
blkg->pd[i] = pd;
pd->blkg = blkg;
}
/* invoke per-policy init */
for (i = 0; i < BLKCG_MAX_POLS; i++) {
struct blkcg_policy *pol = blkcg_policy[i];
/* invoke per-policy init */
if (blkcg_policy_enabled(blkg->q, pol))
pol->pd_init_fn(blkg);
}
@ -245,10 +241,9 @@ EXPORT_SYMBOL_GPL(blkg_lookup_create);
static void blkg_destroy(struct blkcg_gq *blkg)
{
struct request_queue *q = blkg->q;
struct blkcg *blkcg = blkg->blkcg;
lockdep_assert_held(q->queue_lock);
lockdep_assert_held(blkg->q->queue_lock);
lockdep_assert_held(&blkcg->lock);
/* Something wrong if we are trying to remove same group twice */

25
block/blk-core.c
View File

@ -361,9 +361,10 @@ EXPORT_SYMBOL(blk_put_queue);
*/
void blk_drain_queue(struct request_queue *q, bool drain_all)
{
int i;
while (true) {
bool drain = false;
int i;
spin_lock_irq(q->queue_lock);
@ -408,6 +409,18 @@ void blk_drain_queue(struct request_queue *q, bool drain_all)
break;
msleep(10);
}
/*
* With queue marked dead, any woken up waiter will fail the
* allocation path, so the wakeup chaining is lost and we're
* left with hung waiters. We need to wake up those waiters.
*/
if (q->request_fn) {
spin_lock_irq(q->queue_lock);
for (i = 0; i < ARRAY_SIZE(q->rq.wait); i++)
wake_up_all(&q->rq.wait[i]);
spin_unlock_irq(q->queue_lock);
}
}
/**
@ -467,7 +480,6 @@ void blk_cleanup_queue(struct request_queue *q)
/* mark @q DEAD, no new request or merges will be allowed afterwards */
mutex_lock(&q->sysfs_lock);
queue_flag_set_unlocked(QUEUE_FLAG_DEAD, q);
spin_lock_irq(lock);
/*
@ -485,10 +497,6 @@ void blk_cleanup_queue(struct request_queue *q)
queue_flag_set(QUEUE_FLAG_NOMERGES, q);
queue_flag_set(QUEUE_FLAG_NOXMERGES, q);
queue_flag_set(QUEUE_FLAG_DEAD, q);
if (q->queue_lock != &q->__queue_lock)
q->queue_lock = &q->__queue_lock;
spin_unlock_irq(lock);
mutex_unlock(&q->sysfs_lock);
@ -499,6 +507,11 @@ void blk_cleanup_queue(struct request_queue *q)
del_timer_sync(&q->backing_dev_info.laptop_mode_wb_timer);
blk_sync_queue(q);
spin_lock_irq(lock);
if (q->queue_lock != &q->__queue_lock)
q->queue_lock = &q->__queue_lock;
spin_unlock_irq(lock);
/* @q is and will stay empty, shutdown and put */
blk_put_queue(q);
}

41
block/blk-timeout.c
View File

@ -197,44 +197,3 @@ void blk_add_timer(struct request *req)
mod_timer(&q->timeout, expiry);
}
/**
* blk_abort_queue -- Abort all request on given queue
* @queue: pointer to queue
*
*/
void blk_abort_queue(struct request_queue *q)
{
unsigned long flags;
struct request *rq, *tmp;
LIST_HEAD(list);
/*
* Not a request based block device, nothing to abort
*/
if (!q->request_fn)
return;
spin_lock_irqsave(q->queue_lock, flags);
elv_abort_queue(q);
/*
* Splice entries to local list, to avoid deadlocking if entries
* get readded to the timeout list by error handling
*/
list_splice_init(&q->timeout_list, &list);
list_for_each_entry_safe(rq, tmp, &list, timeout_list)
blk_abort_request(rq);
/*
* Occasionally, blk_abort_request() will return without
* deleting the element from the list. Make sure we add those back
* instead of leaving them on the local stack list.
*/
list_splice(&list, &q->timeout_list);
spin_unlock_irqrestore(q->queue_lock, flags);
}
EXPORT_SYMBOL_GPL(blk_abort_queue);

30
block/cfq-iosched.c
View File

@ -17,8 +17,6 @@
#include "blk.h"
#include "blk-cgroup.h"
static struct blkcg_policy blkcg_policy_cfq __maybe_unused;
/*
* tunables
*/
@ -418,11 +416,6 @@ static inline struct cfq_group *pd_to_cfqg(struct blkg_policy_data *pd)
return pd ? container_of(pd, struct cfq_group, pd) : NULL;
}
static inline struct cfq_group *blkg_to_cfqg(struct blkcg_gq *blkg)
{
return pd_to_cfqg(blkg_to_pd(blkg, &blkcg_policy_cfq));
}
static inline struct blkcg_gq *cfqg_to_blkg(struct cfq_group *cfqg)
{
return pd_to_blkg(&cfqg->pd);
@ -572,6 +565,13 @@ static inline void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg) { }
#ifdef CONFIG_CFQ_GROUP_IOSCHED
static struct blkcg_policy blkcg_policy_cfq;
static inline struct cfq_group *blkg_to_cfqg(struct blkcg_gq *blkg)
{
return pd_to_cfqg(blkg_to_pd(blkg, &blkcg_policy_cfq));
}
static inline void cfqg_get(struct cfq_group *cfqg)
{
return blkg_get(cfqg_to_blkg(cfqg));
@ -3951,10 +3951,11 @@ static void cfq_exit_queue(struct elevator_queue *e)
cfq_shutdown_timer_wq(cfqd);
#ifndef CONFIG_CFQ_GROUP_IOSCHED
#ifdef CONFIG_CFQ_GROUP_IOSCHED
blkcg_deactivate_policy(q, &blkcg_policy_cfq);
#else
kfree(cfqd->root_group);
#endif
blkcg_deactivate_policy(q, &blkcg_policy_cfq);
kfree(cfqd);
}
@ -4194,14 +4195,15 @@ static int __init cfq_init(void)
#ifdef CONFIG_CFQ_GROUP_IOSCHED
if (!cfq_group_idle)
cfq_group_idle = 1;
#else
cfq_group_idle = 0;
#endif
ret = blkcg_policy_register(&blkcg_policy_cfq);
if (ret)
return ret;
#else
cfq_group_idle = 0;
#endif
ret = -ENOMEM;
cfq_pool = KMEM_CACHE(cfq_queue, 0);
if (!cfq_pool)
goto err_pol_unreg;
@ -4215,13 +4217,17 @@ static int __init cfq_init(void)
err_free_pool:
kmem_cache_destroy(cfq_pool);
err_pol_unreg:
#ifdef CONFIG_CFQ_GROUP_IOSCHED
blkcg_policy_unregister(&blkcg_policy_cfq);
#endif
return ret;
}
static void __exit cfq_exit(void)
{
#ifdef CONFIG_CFQ_GROUP_IOSCHED
blkcg_policy_unregister(&blkcg_policy_cfq);
#endif
elv_unregister(&iosched_cfq);
kmem_cache_destroy(cfq_pool);
}

5
block/scsi_ioctl.c
View File

@ -721,11 +721,14 @@ int scsi_verify_blk_ioctl(struct block_device *bd, unsigned int cmd)
break;
}
if (capable(CAP_SYS_RAWIO))
return 0;
/* In particular, rule out all resets and host-specific ioctls. */
printk_ratelimited(KERN_WARNING
"%s: sending ioctl %x to a partition!\n", current->comm, cmd);
return capable(CAP_SYS_RAWIO) ? 0 : -ENOIOCTLCMD;
return -ENOIOCTLCMD;
}
EXPORT_SYMBOL(scsi_verify_blk_ioctl);

11
drivers/block/drbd/drbd_bitmap.c
View File

@ -1475,10 +1475,17 @@ void _drbd_bm_set_bits(struct drbd_conf *mdev, const unsigned long s, const unsi
first_word = 0;
spin_lock_irq(&b->bm_lock);
}
/* last page (respectively only page, for first page == last page) */
last_word = MLPP(el >> LN2_BPL);
bm_set_full_words_within_one_page(mdev->bitmap, last_page, first_word, last_word);
/* consider bitmap->bm_bits = 32768, bitmap->bm_number_of_pages = 1. (or multiples).
* ==> e = 32767, el = 32768, last_page = 2,
* and now last_word = 0.
* We do not want to touch last_page in this case,
* as we did not allocate it, it is not present in bitmap->bm_pages.
*/
if (last_word)
bm_set_full_words_within_one_page(mdev->bitmap, last_page, first_word, last_word);
/* possibly trailing bits.
* example: (e & 63) == 63, el will be e+1.

66
drivers/block/drbd/drbd_req.c
View File

@ -472,12 +472,17 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
req->rq_state |= RQ_LOCAL_COMPLETED;
req->rq_state &= ~RQ_LOCAL_PENDING;
D_ASSERT(!(req->rq_state & RQ_NET_MASK));
if (req->rq_state & RQ_LOCAL_ABORTED) {
_req_may_be_done(req, m);
break;
}
__drbd_chk_io_error(mdev, false);
goto_queue_for_net_read:
D_ASSERT(!(req->rq_state & RQ_NET_MASK));
/* no point in retrying if there is no good remote data,
* or we have no connection. */
if (mdev->state.pdsk != D_UP_TO_DATE) {
@ -765,6 +770,40 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s
return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr);
}
static void maybe_pull_ahead(struct drbd_conf *mdev)
{
int congested = 0;
/* If I don't even have good local storage, we can not reasonably try
* to pull ahead of the peer. We also need the local reference to make
* sure mdev->act_log is there.
* Note: caller has to make sure that net_conf is there.
*/
if (!get_ldev_if_state(mdev, D_UP_TO_DATE))
return;
if (mdev->net_conf->cong_fill &&
atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) {
dev_info(DEV, "Congestion-fill threshold reached\n");
congested = 1;
}
if (mdev->act_log->used >= mdev->net_conf->cong_extents) {
dev_info(DEV, "Congestion-extents threshold reached\n");
congested = 1;
}
if (congested) {
queue_barrier(mdev); /* last barrier, after mirrored writes */
if (mdev->net_conf->on_congestion == OC_PULL_AHEAD)
_drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL);
else /*mdev->net_conf->on_congestion == OC_DISCONNECT */
_drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL);
}
put_ldev(mdev);
}
static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time)
{
const int rw = bio_rw(bio);
@ -972,29 +1011,8 @@ allocate_barrier:
_req_mod(req, queue_for_send_oos);
if (remote &&
mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) {
int congested = 0;
if (mdev->net_conf->cong_fill &&
atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) {
dev_info(DEV, "Congestion-fill threshold reached\n");
congested = 1;
}
if (mdev->act_log->used >= mdev->net_conf->cong_extents) {
dev_info(DEV, "Congestion-extents threshold reached\n");
congested = 1;
}
if (congested) {
queue_barrier(mdev); /* last barrier, after mirrored writes */
if (mdev->net_conf->on_congestion == OC_PULL_AHEAD)
_drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL);
else /*mdev->net_conf->on_congestion == OC_DISCONNECT */
_drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL);
}
}
mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96)
maybe_pull_ahead(mdev);
spin_unlock_irq(&mdev->req_lock);
kfree(b); /* if someone else has beaten us to it... */

1
drivers/block/floppy.c
View File

@ -671,6 +671,7 @@ static void __reschedule_timeout(int drive, const char *message)
if (drive == current_reqD)
drive = current_drive;
__cancel_delayed_work(&fd_timeout);
if (drive < 0 || drive >= N_DRIVE) {
delay = 20UL * HZ;

246
drivers/block/mtip32xx/mtip32xx.c
View File

@ -37,6 +37,7 @@
#include <linux/kthread.h>
#include <../drivers/ata/ahci.h>
#include <linux/export.h>
#include <linux/debugfs.h>
#include "mtip32xx.h"
#define HW_CMD_SLOT_SZ (MTIP_MAX_COMMAND_SLOTS * 32)
@ -85,6 +86,7 @@ static int instance;
* allocated in mtip_init().
*/
static int mtip_major;
static struct dentry *dfs_parent;
static DEFINE_SPINLOCK(rssd_index_lock);
static DEFINE_IDA(rssd_index_ida);
@ -2546,7 +2548,7 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
}
/*
* Sysfs register/status dump.
* Sysfs status dump.
*
* @dev Pointer to the device structure, passed by the kernrel.
* @attr Pointer to the device_attribute structure passed by the kernel.
@ -2555,71 +2557,6 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
* return value
* The size, in bytes, of the data copied into buf.
*/
static ssize_t mtip_hw_show_registers(struct device *dev,
struct device_attribute *attr,
char *buf)
{
u32 group_allocated;
struct driver_data *dd = dev_to_disk(dev)->private_data;
int size = 0;
int n;
size += sprintf(&buf[size], "Hardware\n--------\n");
size += sprintf(&buf[size], "S ACTive : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->s_active[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Command Issue : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->cmd_issue[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Completed : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->completed[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "PORT IRQ STAT : [ 0x%08X ]\n",
readl(dd->port->mmio + PORT_IRQ_STAT));
size += sprintf(&buf[size], "HOST IRQ STAT : [ 0x%08X ]\n",
readl(dd->mmio + HOST_IRQ_STAT));
size += sprintf(&buf[size], "\n");
size += sprintf(&buf[size], "Local\n-----\n");
size += sprintf(&buf[size], "Allocated : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->allocated[n/2] >> (32*(n&1));
else
group_allocated = dd->port->allocated[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Commands in Q: [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->cmds_to_issue[n/2] >> (32*(n&1));
else
group_allocated = dd->port->cmds_to_issue[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
return size;
}
static ssize_t mtip_hw_show_status(struct device *dev,
struct device_attribute *attr,
char *buf)
@ -2637,24 +2574,121 @@ static ssize_t mtip_hw_show_status(struct device *dev,
return size;
}
static ssize_t mtip_hw_show_flags(struct device *dev,
struct device_attribute *attr,
char *buf)
static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL);
static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf,
size_t len, loff_t *offset)
{
struct driver_data *dd = dev_to_disk(dev)->private_data;
int size = 0;
struct driver_data *dd = (struct driver_data *)f->private_data;
char buf[MTIP_DFS_MAX_BUF_SIZE];
u32 group_allocated;
int size = *offset;
int n;
size += sprintf(&buf[size], "Flag in port struct : [ %08lX ]\n",
dd->port->flags);
size += sprintf(&buf[size], "Flag in dd struct : [ %08lX ]\n",
dd->dd_flag);
if (!len || size)
return 0;
return size;
if (size < 0)
return -EINVAL;
size += sprintf(&buf[size], "H/ S ACTive : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->s_active[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "H/ Command Issue : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->cmd_issue[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "H/ Completed : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->completed[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "H/ PORT IRQ STAT : [ 0x%08X ]\n",
readl(dd->port->mmio + PORT_IRQ_STAT));
size += sprintf(&buf[size], "H/ HOST IRQ STAT : [ 0x%08X ]\n",
readl(dd->mmio + HOST_IRQ_STAT));
size += sprintf(&buf[size], "\n");
size += sprintf(&buf[size], "L/ Allocated : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->allocated[n/2] >> (32*(n&1));
else
group_allocated = dd->port->allocated[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "L/ Commands in Q : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->cmds_to_issue[n/2] >> (32*(n&1));
else
group_allocated = dd->port->cmds_to_issue[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
*offset = size <= len ? size : len;
size = copy_to_user(ubuf, buf, *offset);
if (size)
return -EFAULT;
return *offset;
}
static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL);
static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL);
static DEVICE_ATTR(flags, S_IRUGO, mtip_hw_show_flags, NULL);
static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf,
size_t len, loff_t *offset)
{
struct driver_data *dd = (struct driver_data *)f->private_data;
char buf[MTIP_DFS_MAX_BUF_SIZE];
int size = *offset;
if (!len || size)
return 0;
if (size < 0)
return -EINVAL;
size += sprintf(&buf[size], "Flag-port : [ %08lX ]\n",
dd->port->flags);
size += sprintf(&buf[size], "Flag-dd : [ %08lX ]\n",
dd->dd_flag);
*offset = size <= len ? size : len;
size = copy_to_user(ubuf, buf, *offset);
if (size)
return -EFAULT;
return *offset;
}
static const struct file_operations mtip_regs_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = mtip_hw_read_registers,
.llseek = no_llseek,
};
static const struct file_operations mtip_flags_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = mtip_hw_read_flags,
.llseek = no_llseek,
};
/*
* Create the sysfs related attributes.
@ -2671,15 +2705,9 @@ static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj)
if (!kobj || !dd)
return -EINVAL;
if (sysfs_create_file(kobj, &dev_attr_registers.attr))
dev_warn(&dd->pdev->dev,
"Error creating 'registers' sysfs entry\n");
if (sysfs_create_file(kobj, &dev_attr_status.attr))
dev_warn(&dd->pdev->dev,
"Error creating 'status' sysfs entry\n");
if (sysfs_create_file(kobj, &dev_attr_flags.attr))
dev_warn(&dd->pdev->dev,
"Error creating 'flags' sysfs entry\n");
return 0;
}
@ -2698,13 +2726,39 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj)
if (!kobj || !dd)
return -EINVAL;
sysfs_remove_file(kobj, &dev_attr_registers.attr);
sysfs_remove_file(kobj, &dev_attr_status.attr);
sysfs_remove_file(kobj, &dev_attr_flags.attr);
return 0;
}
static int mtip_hw_debugfs_init(struct driver_data *dd)
{
if (!dfs_parent)
return -1;
dd->dfs_node = debugfs_create_dir(dd->disk->disk_name, dfs_parent);
if (IS_ERR_OR_NULL(dd->dfs_node)) {
dev_warn(&dd->pdev->dev,
"Error creating node %s under debugfs\n",
dd->disk->disk_name);
dd->dfs_node = NULL;
return -1;
}
debugfs_create_file("flags", S_IRUGO, dd->dfs_node, dd,
&mtip_flags_fops);
debugfs_create_file("registers", S_IRUGO, dd->dfs_node, dd,
&mtip_regs_fops);
return 0;
}
static void mtip_hw_debugfs_exit(struct driver_data *dd)
{
debugfs_remove_recursive(dd->dfs_node);
}
/*
* Perform any init/resume time hardware setup
*
@ -3730,6 +3784,7 @@ skip_create_disk:
mtip_hw_sysfs_init(dd, kobj);
kobject_put(kobj);
}
mtip_hw_debugfs_init(dd);
if (dd->mtip_svc_handler) {
set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag);
@ -3755,6 +3810,8 @@ start_service_thread:
return rv;
kthread_run_error:
mtip_hw_debugfs_exit(dd);
/* Delete our gendisk. This also removes the device from /dev */
del_gendisk(dd->disk);
@ -3805,6 +3862,7 @@ static int mtip_block_remove(struct driver_data *dd)
kobject_put(kobj);
}
}
mtip_hw_debugfs_exit(dd);
/*
* Delete our gendisk structure. This also removes the device
@ -4152,10 +4210,20 @@ static int __init mtip_init(void)
}
mtip_major = error;
if (!dfs_parent) {
dfs_parent = debugfs_create_dir("rssd", NULL);
if (IS_ERR_OR_NULL(dfs_parent)) {
printk(KERN_WARNING "Error creating debugfs parent\n");
dfs_parent = NULL;
}
}
/* Register our PCI operations. */
error = pci_register_driver(&mtip_pci_driver);
if (error)
if (error) {
debugfs_remove(dfs_parent);
unregister_blkdev(mtip_major, MTIP_DRV_NAME);
}
return error;
}
@ -4172,6 +4240,8 @@ static int __init mtip_init(void)
*/
static void __exit mtip_exit(void)
{
debugfs_remove_recursive(dfs_parent);
/* Release the allocated major block device number. */
unregister_blkdev(mtip_major, MTIP_DRV_NAME);

5
drivers/block/mtip32xx/mtip32xx.h
View File

@ -26,7 +26,6 @@
#include <linux/ata.h>
#include <linux/interrupt.h>
#include <linux/genhd.h>
#include <linux/version.h>
/* Offset of Subsystem Device ID in pci confoguration space */
#define PCI_SUBSYSTEM_DEVICEID 0x2E
@ -111,6 +110,8 @@
#define dbg_printk(format, arg...)
#endif
#define MTIP_DFS_MAX_BUF_SIZE 1024
#define __force_bit2int (unsigned int __force)
enum {
@ -447,6 +448,8 @@ struct driver_data {
unsigned long dd_flag; /* NOTE: use atomic bit operations on this */
struct task_struct *mtip_svc_handler; /* task_struct of svc thd */
struct dentry *dfs_node;
};
#endif

40
drivers/block/umem.c
View File

@ -513,6 +513,44 @@ static void process_page(unsigned long data)
}
}
struct mm_plug_cb {
struct blk_plug_cb cb;
struct cardinfo *card;
};
static void mm_unplug(struct blk_plug_cb *cb)
{
struct mm_plug_cb *mmcb = container_of(cb, struct mm_plug_cb, cb);
spin_lock_irq(&mmcb->card->lock);
activate(mmcb->card);
spin_unlock_irq(&mmcb->card->lock);
kfree(mmcb);
}
static int mm_check_plugged(struct cardinfo *card)
{
struct blk_plug *plug = current->plug;
struct mm_plug_cb *mmcb;
if (!plug)
return 0;
list_for_each_entry(mmcb, &plug->cb_list, cb.list) {
if (mmcb->cb.callback == mm_unplug && mmcb->card == card)
return 1;
}
/* Not currently on the callback list */
mmcb = kmalloc(sizeof(*mmcb), GFP_ATOMIC);
if (!mmcb)
return 0;
mmcb->card = card;
mmcb->cb.callback = mm_unplug;
list_add(&mmcb->cb.list, &plug->cb_list);
return 1;
}
static void mm_make_request(struct request_queue *q, struct bio *bio)
{
struct cardinfo *card = q->queuedata;
@ -523,6 +561,8 @@ static void mm_make_request(struct request_queue *q, struct bio *bio)
*card->biotail = bio;
bio->bi_next = NULL;
card->biotail = &bio->bi_next;
if (bio->bi_rw & REQ_SYNC || !mm_check_plugged(card))
activate(card);
spin_unlock_irq(&card->lock);
return;

2
drivers/block/xen-blkback/common.h
View File

@ -257,6 +257,7 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst,
break;
case BLKIF_OP_DISCARD:
dst->u.discard.flag = src->u.discard.flag;
dst->u.discard.id = src->u.discard.id;
dst->u.discard.sector_number = src->u.discard.sector_number;
dst->u.discard.nr_sectors = src->u.discard.nr_sectors;
break;
@ -287,6 +288,7 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst,
break;
case BLKIF_OP_DISCARD:
dst->u.discard.flag = src->u.discard.flag;
dst->u.discard.id = src->u.discard.id;
dst->u.discard.sector_number = src->u.discard.sector_number;
dst->u.discard.nr_sectors = src->u.discard.nr_sectors;
break;

58
drivers/block/xen-blkfront.c
View File

@ -141,14 +141,36 @@ static int get_id_from_freelist(struct blkfront_info *info)
return free;
}
static void add_id_to_freelist(struct blkfront_info *info,
static int add_id_to_freelist(struct blkfront_info *info,
unsigned long id)
{
if (info->shadow[id].req.u.rw.id != id)
return -EINVAL;
if (info->shadow[id].request == NULL)
return -EINVAL;
info->shadow[id].req.u.rw.id = info->shadow_free;
info->shadow[id].request = NULL;
info->shadow_free = id;
return 0;
}
static const char *op_name(int op)
{
static const char *const names[] = {
[BLKIF_OP_READ] = "read",
[BLKIF_OP_WRITE] = "write",
[BLKIF_OP_WRITE_BARRIER] = "barrier",
[BLKIF_OP_FLUSH_DISKCACHE] = "flush",
[BLKIF_OP_DISCARD] = "discard" };
if (op < 0 || op >= ARRAY_SIZE(names))
return "unknown";
if (!names[op])
return "reserved";
return names[op];
}
static int xlbd_reserve_minors(unsigned int minor, unsigned int nr)
{
unsigned int end = minor + nr;
@ -746,20 +768,36 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
bret = RING_GET_RESPONSE(&info->ring, i);
id = bret->id;
/*
* The backend has messed up and given us an id that we would
* never have given to it (we stamp it up to BLK_RING_SIZE -
* look in get_id_from_freelist.
*/
if (id >= BLK_RING_SIZE) {
WARN(1, "%s: response to %s has incorrect id (%ld)\n",
info->gd->disk_name, op_name(bret->operation), id);
/* We can't safely get the 'struct request' as
* the id is busted. */
continue;
}
req = info->shadow[id].request;
if (bret->operation != BLKIF_OP_DISCARD)
blkif_completion(&info->shadow[id]);
add_id_to_freelist(info, id);
if (add_id_to_freelist(info, id)) {
WARN(1, "%s: response to %s (id %ld) couldn't be recycled!\n",
info->gd->disk_name, op_name(bret->operation), id);
continue;
}
error = (bret->status == BLKIF_RSP_OKAY) ? 0 : -EIO;
switch (bret->operation) {
case BLKIF_OP_DISCARD:
if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
struct request_queue *rq = info->rq;
printk(KERN_WARNING "blkfront: %s: discard op failed\n",
info->gd->disk_name);
printk(KERN_WARNING "blkfront: %s: %s op failed\n",
info->gd->disk_name, op_name(bret->operation));
error = -EOPNOTSUPP;
info->feature_discard = 0;
info->feature_secdiscard = 0;
@ -771,18 +809,14 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
case BLKIF_OP_FLUSH_DISKCACHE:
case BLKIF_OP_WRITE_BARRIER:
if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
printk(KERN_WARNING "blkfront: %s: write %s op failed\n",
info->flush_op == BLKIF_OP_WRITE_BARRIER ?
"barrier" : "flush disk cache",
info->gd->disk_name);
printk(KERN_WARNING "blkfront: %s: %s op failed\n",
info->gd->disk_name, op_name(bret->operation));
error = -EOPNOTSUPP;
}
if (unlikely(bret->status == BLKIF_RSP_ERROR &&
info->shadow[id].req.u.rw.nr_segments == 0)) {
printk(KERN_WARNING "blkfront: %s: empty write %s op failed\n",
info->flush_op == BLKIF_OP_WRITE_BARRIER ?
"barrier" : "flush disk cache",
info->gd->disk_name);
printk(KERN_WARNING "blkfront: %s: empty %s op failed\n",
info->gd->disk_name, op_name(bret->operation));
error = -EOPNOTSUPP;
}
if (unlikely(error)) {

28
drivers/clk/clk.c
View File

@ -1067,26 +1067,24 @@ static int __clk_set_parent(struct clk *clk, struct clk *parent)
old_parent = clk->parent;
/* find index of new parent clock using cached parent ptrs */
if (clk->parents)
for (i = 0; i < clk->num_parents; i++)
if (clk->parents[i] == parent)
break;
else
if (!clk->parents)
clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents),
GFP_KERNEL);
/*
* find index of new parent clock using string name comparison
* also try to cache the parent to avoid future calls to __clk_lookup
* find index of new parent clock using cached parent ptrs,
* or if not yet cached, use string name comparison and cache
* them now to avoid future calls to __clk_lookup.
*/
if (i == clk->num_parents)
for (i = 0; i < clk->num_parents; i++)
if (!strcmp(clk->parent_names[i], parent->name)) {
if (clk->parents)
clk->parents[i] = __clk_lookup(parent->name);
break;
}
for (i = 0; i < clk->num_parents; i++) {
if (clk->parents && clk->parents[i] == parent)
break;
else if (!strcmp(clk->parent_names[i], parent->name)) {
if (clk->parents)
clk->parents[i] = __clk_lookup(parent->name);
break;
}
}
if (i == clk->num_parents) {
pr_debug("%s: clock %s is not a possible parent of clock %s\n",

27
drivers/gpu/drm/drm_edid.c
View File

@ -1039,6 +1039,24 @@ mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
return true;
}
static bool valid_inferred_mode(const struct drm_connector *connector,
const struct drm_display_mode *mode)
{
struct drm_display_mode *m;
bool ok = false;
list_for_each_entry(m, &connector->probed_modes, head) {
if (mode->hdisplay == m->hdisplay &&
mode->vdisplay == m->vdisplay &&
drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
return false; /* duplicated */
if (mode->hdisplay <= m->hdisplay &&
mode->vdisplay <= m->vdisplay)
ok = true;
}
return ok;
}
static int
drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
struct detailed_timing *timing)
@ -1048,7 +1066,8 @@ drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
struct drm_device *dev = connector->dev;
for (i = 0; i < drm_num_dmt_modes; i++) {
if (mode_in_range(drm_dmt_modes + i, edid, timing)) {
if (mode_in_range(drm_dmt_modes + i, edid, timing) &&
valid_inferred_mode(connector, drm_dmt_modes + i)) {
newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
if (newmode) {
drm_mode_probed_add(connector, newmode);
@ -1088,7 +1107,8 @@ drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
return modes;
fixup_mode_1366x768(newmode);
if (!mode_in_range(newmode, edid, timing)) {
if (!mode_in_range(newmode, edid, timing) ||
!valid_inferred_mode(connector, newmode)) {
drm_mode_destroy(dev, newmode);
continue;
}
@ -1116,7 +1136,8 @@ drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
return modes;
fixup_mode_1366x768(newmode);
if (!mode_in_range(newmode, edid, timing)) {
if (!mode_in_range(newmode, edid, timing) ||
!valid_inferred_mode(connector, newmode)) {
drm_mode_destroy(dev, newmode);
continue;
}

37
drivers/gpu/drm/i915/i915_dma.c
View File

@ -1401,6 +1401,27 @@ i915_mtrr_setup(struct drm_i915_private *dev_priv, unsigned long base,
}
}
static void i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
{
struct apertures_struct *ap;
struct pci_dev *pdev = dev_priv->dev->pdev;
bool primary;
ap = alloc_apertures(1);
if (!ap)
return;
ap->ranges[0].base = dev_priv->dev->agp->base;
ap->ranges[0].size =
dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
primary =
pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
remove_conflicting_framebuffers(ap, "inteldrmfb", primary);
kfree(ap);
}
/**
* i915_driver_load - setup chip and create an initial config
* @dev: DRM device
@ -1446,6 +1467,15 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
goto free_priv;
}
dev_priv->mm.gtt = intel_gtt_get();
if (!dev_priv->mm.gtt) {
DRM_ERROR("Failed to initialize GTT\n");
ret = -ENODEV;
goto put_bridge;
}
i915_kick_out_firmware_fb(dev_priv);
pci_set_master(dev->pdev);
/* overlay on gen2 is broken and can't address above 1G */
@ -1471,13 +1501,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
goto put_bridge;
}
dev_priv->mm.gtt = intel_gtt_get();
if (!dev_priv->mm.gtt) {
DRM_ERROR("Failed to initialize GTT\n");
ret = -ENODEV;
goto out_rmmap;
}
aperture_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
dev_priv->mm.gtt_mapping =

13
drivers/gpu/drm/radeon/radeon_gart.c
View File

@ -289,8 +289,9 @@ int radeon_vm_manager_init(struct radeon_device *rdev)
rdev->vm_manager.enabled = false;
/* mark first vm as always in use, it's the system one */
/* allocate enough for 2 full VM pts */
r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager,
rdev->vm_manager.max_pfn * 8,
rdev->vm_manager.max_pfn * 8 * 2,
RADEON_GEM_DOMAIN_VRAM);
if (r) {
dev_err(rdev->dev, "failed to allocate vm bo (%dKB)\n",
@ -633,7 +634,15 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm)
mutex_init(&vm->mutex);
INIT_LIST_HEAD(&vm->list);
INIT_LIST_HEAD(&vm->va);
vm->last_pfn = 0;
/* SI requires equal sized PTs for all VMs, so always set
* last_pfn to max_pfn. cayman allows variable sized
* pts so we can grow then as needed. Once we switch
* to two level pts we can unify this again.
*/
if (rdev->family >= CHIP_TAHITI)
vm->last_pfn = rdev->vm_manager.max_pfn;
else
vm->last_pfn = 0;
/* map the ib pool buffer at 0 in virtual address space, set
* read only
*/

10
drivers/gpu/drm/radeon/radeon_gem.c
View File

@ -292,6 +292,7 @@ int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
struct drm_file *filp)
{
struct radeon_device *rdev = dev->dev_private;
struct drm_radeon_gem_busy *args = data;
struct drm_gem_object *gobj;
struct radeon_bo *robj;
@ -317,13 +318,14 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
break;
}
drm_gem_object_unreference_unlocked(gobj);
r = radeon_gem_handle_lockup(robj->rdev, r);
r = radeon_gem_handle_lockup(rdev, r);
return r;
}
int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
struct drm_file *filp)
{
struct radeon_device *rdev = dev->dev_private;
struct drm_radeon_gem_wait_idle *args = data;
struct drm_gem_object *gobj;
struct radeon_bo *robj;
@ -336,10 +338,10 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
robj = gem_to_radeon_bo(gobj);
r = radeon_bo_wait(robj, NULL, false);
/* callback hw specific functions if any */
if (robj->rdev->asic->ioctl_wait_idle)
robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj);
if (rdev->asic->ioctl_wait_idle)
robj->rdev->asic->ioctl_wait_idle(rdev, robj);
drm_gem_object_unreference_unlocked(gobj);
r = radeon_gem_handle_lockup(robj->rdev, r);
r = radeon_gem_handle_lockup(rdev, r);
return r;
}

4
drivers/gpu/drm/radeon/si.c
View File

@ -2365,12 +2365,12 @@ int si_pcie_gart_enable(struct radeon_device *rdev)
WREG32(0x15DC, 0);
/* empty context1-15 */
/* FIXME start with 1G, once using 2 level pt switch to full
/* FIXME start with 4G, once using 2 level pt switch to full
* vm size space
*/
/* set vm size, must be a multiple of 4 */
WREG32(VM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, (1 << 30) / RADEON_GPU_PAGE_SIZE);
WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, rdev->vm_manager.max_pfn);
for (i = 1; i < 16; i++) {
if (i < 8)
WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2),

5
drivers/input/joystick/as5011.c
View File

@ -282,7 +282,8 @@ static int __devinit as5011_probe(struct i2c_client *client,
error = request_threaded_irq(as5011->button_irq,
NULL, as5011_button_interrupt,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
"as5011_button", as5011);
if (error < 0) {
dev_err(&client->dev,
@ -296,7 +297,7 @@ static int __devinit as5011_probe(struct i2c_client *client,
error = request_threaded_irq(as5011->axis_irq, NULL,
as5011_axis_interrupt,
plat_data->axis_irqflags,
plat_data->axis_irqflags | IRQF_ONESHOT,
"as5011_joystick", as5011);
if (error) {
dev_err(&client->dev,

3
drivers/input/keyboard/mcs_touchkey.c
View File

@ -178,7 +178,8 @@ static int __devinit mcs_touchkey_probe(struct i2c_client *client,
}
error = request_threaded_irq(client->irq, NULL, mcs_touchkey_interrupt,
IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
client->dev.driver->name, data);
if (error) {
dev_err(&client->dev, "Failed to register interrupt\n");
goto err_free_mem;

2
drivers/input/keyboard/mpr121_touchkey.c
View File

@ -248,7 +248,7 @@ static int __devinit mpr_touchkey_probe(struct i2c_client *client,
error = request_threaded_irq(client->irq, NULL,
mpr_touchkey_interrupt,
IRQF_TRIGGER_FALLING,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
client->dev.driver->name, mpr121);
if (error) {
dev_err(&client->dev, "Failed to register interrupt\n");

3
drivers/input/keyboard/qt1070.c
View File

@ -201,7 +201,8 @@ static int __devinit qt1070_probe(struct i2c_client *client,
msleep(QT1070_RESET_TIME);
err = request_threaded_irq(client->irq, NULL, qt1070_interrupt,
IRQF_TRIGGER_NONE, client->dev.driver->name, data);
IRQF_TRIGGER_NONE | IRQF_ONESHOT,
client->dev.driver->name, data);
if (err) {
dev_err(&client->dev, "fail to request irq\n");
goto err_free_mem;

3
drivers/input/keyboard/tca6416-keypad.c
View File

@ -278,7 +278,8 @@ static int __devinit tca6416_keypad_probe(struct i2c_client *client,
error = request_threaded_irq(chip->irqnum, NULL,
tca6416_keys_isr,
IRQF_TRIGGER_FALLING,
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
"tca6416-keypad", chip);
if (error) {
dev_dbg(&client->dev,

2
drivers/input/keyboard/tca8418_keypad.c
View File

@ -360,7 +360,7 @@ static int __devinit tca8418_keypad_probe(struct i2c_client *client,
client->irq = gpio_to_irq(client->irq);
error = request_threaded_irq(client->irq, NULL, tca8418_irq_handler,
IRQF_TRIGGER_FALLING,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
client->name, keypad_data);
if (error) {
dev_dbg(&client->dev,

8
drivers/input/keyboard/tnetv107x-keypad.c
View File

@ -227,15 +227,15 @@ static int __devinit keypad_probe(struct platform_device *pdev)
goto error_clk;
}
error = request_threaded_irq(kp->irq_press, NULL, keypad_irq, 0,
dev_name(dev), kp);
error = request_threaded_irq(kp->irq_press, NULL, keypad_irq,
IRQF_ONESHOT, dev_name(dev), kp);
if (error < 0) {
dev_err(kp->dev, "Could not allocate keypad press key irq\n");
goto error_irq_press;
}
error = request_threaded_irq(kp->irq_release, NULL, keypad_irq, 0,
dev_name(dev), kp);
error = request_threaded_irq(kp->irq_release, NULL, keypad_irq,
IRQF_ONESHOT, dev_name(dev), kp);
if (error < 0) {
dev_err(kp->dev, "Could not allocate keypad release key irq\n");
goto error_irq_release;

8
drivers/input/misc/ad714x.c
View File

@ -972,6 +972,7 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
struct ad714x_platform_data *plat_data = dev->platform_data;
struct ad714x_chip *ad714x;
void *drv_mem;
unsigned long irqflags;
struct ad714x_button_drv *bt_drv;
struct ad714x_slider_drv *sd_drv;
@ -1162,10 +1163,11 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
alloc_idx++;
}
irqflags = plat_data->irqflags ?: IRQF_TRIGGER_FALLING;
irqflags |= IRQF_ONESHOT;
error = request_threaded_irq(ad714x->irq, NULL, ad714x_interrupt_thread,
plat_data->irqflags ?
plat_data->irqflags : IRQF_TRIGGER_FALLING,
"ad714x_captouch", ad714x);
irqflags, "ad714x_captouch", ad714x);
if (error) {
dev_err(dev, "can't allocate irq %d\n", ad714x->irq);
goto err_unreg_dev;

3
drivers/input/misc/dm355evm_keys.c
View File

@ -213,7 +213,8 @@ static int __devinit dm355evm_keys_probe(struct platform_device *pdev)
/* REVISIT: flush the event queue? */
status = request_threaded_irq(keys->irq, NULL, dm355evm_keys_irq,
IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), keys);
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
dev_name(&pdev->dev), keys);
if (status < 0)
goto fail2;

6
drivers/input/tablet/wacom_sys.c
View File

@ -216,7 +216,7 @@ static void wacom_retrieve_report_data(struct usb_interface *intf,
rep_data[0] = 12;
result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT,
rep_data[0], &rep_data, 2,
rep_data[0], rep_data, 2,
WAC_MSG_RETRIES);
if (result >= 0 && rep_data[1] > 2)
@ -401,7 +401,9 @@ static int wacom_parse_hid(struct usb_interface *intf,
break;
case HID_USAGE_CONTACTMAX:
wacom_retrieve_report_data(intf, features);
/* leave touch_max as is if predefined */
if (!features->touch_max)
wacom_retrieve_report_data(intf, features);
i++;
break;
}

2
drivers/input/touchscreen/ad7879.c
View File

@ -597,7 +597,7 @@ struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned int irq,
AD7879_TMR(ts->pen_down_acc_interval);
err = request_threaded_irq(ts->irq, NULL, ad7879_irq,
IRQF_TRIGGER_FALLING,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
dev_name(dev), ts);
if (err) {
dev_err(dev, "irq %d busy?\n", ts->irq);

3
drivers/input/touchscreen/atmel_mxt_ts.c
View File

@ -1149,7 +1149,8 @@ static int __devinit mxt_probe(struct i2c_client *client,
goto err_free_object;
error = request_threaded_irq(client->irq, NULL, mxt_interrupt,
pdata->irqflags, client->dev.driver->name, data);
pdata->irqflags | IRQF_ONESHOT,
client->dev.driver->name, data);
if (error) {
dev_err(&client->dev, "Failed to register interrupt\n");
goto err_free_object;

3
drivers/input/touchscreen/bu21013_ts.c
View File

@ -509,7 +509,8 @@ static int __devinit bu21013_probe(struct i2c_client *client,
input_set_drvdata(in_dev, bu21013_data);
error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq,
IRQF_TRIGGER_FALLING | IRQF_SHARED,
IRQF_TRIGGER_FALLING | IRQF_SHARED |
IRQF_ONESHOT,
DRIVER_TP, bu21013_data);
if (error) {
dev_err(&client->dev, "request irq %d failed\n", pdata->irq);

3
drivers/input/touchscreen/cy8ctmg110_ts.c
View File

@ -251,7 +251,8 @@ static int __devinit cy8ctmg110_probe(struct i2c_client *client,
}
err = request_threaded_irq(client->irq, NULL, cy8ctmg110_irq_thread,
IRQF_TRIGGER_RISING, "touch_reset_key", ts);
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"touch_reset_key", ts);
if (err < 0) {
dev_err(&client->dev,
"irq %d busy? error %d\n", client->irq, err);

2
drivers/input/touchscreen/intel-mid-touch.c
View File

@ -620,7 +620,7 @@ static int __devinit mrstouch_probe(struct platform_device *pdev)
MRST_PRESSURE_MIN, MRST_PRESSURE_MAX, 0, 0);
err = request_threaded_irq(tsdev->irq, NULL, mrstouch_pendet_irq,
0, "mrstouch", tsdev);
IRQF_ONESHOT, "mrstouch", tsdev);
if (err) {
dev_err(tsdev->dev, "unable to allocate irq\n");
goto err_free_mem;

2
drivers/input/touchscreen/pixcir_i2c_ts.c
View File

@ -165,7 +165,7 @@ static int __devinit pixcir_i2c_ts_probe(struct i2c_client *client,
input_set_drvdata(input, tsdata);
error = request_threaded_irq(client->irq, NULL, pixcir_ts_isr,
IRQF_TRIGGER_FALLING,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
client->name, tsdata);
if (error) {
dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");

2
drivers/input/touchscreen/tnetv107x-ts.c
View File

@ -297,7 +297,7 @@ static int __devinit tsc_probe(struct platform_device *pdev)
goto error_clk;
}
error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, 0,
error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, IRQF_ONESHOT,
dev_name(dev), ts);
if (error < 0) {
dev_err(ts->dev, "Could not allocate ts irq\n");

3
drivers/input/touchscreen/tsc2005.c
View File

@ -650,7 +650,8 @@ static int __devinit tsc2005_probe(struct spi_device *spi)
tsc2005_stop_scan(ts);
error = request_threaded_irq(spi->irq, NULL, tsc2005_irq_thread,
IRQF_TRIGGER_RISING, "tsc2005", ts);
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"tsc2005", ts);
if (error) {
dev_err(&spi->dev, "Failed to request irq, err: %d\n", error);
goto err_free_mem;

16
drivers/leds/ledtrig-heartbeat.c
View File

@ -21,6 +21,8 @@
#include <linux/reboot.h>
#include "leds.h"
static int panic_heartbeats;
struct heartbeat_trig_data {
unsigned int phase;
unsigned int period;
@ -34,6 +36,11 @@ static void led_heartbeat_function(unsigned long data)
unsigned long brightness = LED_OFF;
unsigned long delay = 0;
if (unlikely(panic_heartbeats)) {
led_set_brightness(led_cdev, LED_OFF);
return;
}
/* acts like an actual heart beat -- ie thump-thump-pause... */
switch (heartbeat_data->phase) {
case 0:
@ -111,12 +118,19 @@ static int heartbeat_reboot_notifier(struct notifier_block *nb,
return NOTIFY_DONE;
}
static int heartbeat_panic_notifier(struct notifier_block *nb,
unsigned long code, void *unused)
{
panic_heartbeats = 1;
return NOTIFY_DONE;
}
static struct notifier_block heartbeat_reboot_nb = {
.notifier_call = heartbeat_reboot_notifier,
};
static struct notifier_block heartbeat_panic_nb = {
.notifier_call = heartbeat_reboot_notifier,
.notifier_call = heartbeat_panic_notifier,
};
static int __init heartbeat_trig_init(void)

7
drivers/md/dm-thin.c
View File

@ -2292,6 +2292,13 @@ static int process_reserve_metadata_snap_mesg(unsigned argc, char **argv, struct
if (r)
return r;
r = dm_pool_commit_metadata(pool->pmd);
if (r) {
DMERR("%s: dm_pool_commit_metadata() failed, error = %d",
__func__, r);
return r;
}
r = dm_pool_reserve_metadata_snap(pool->pmd);
if (r)
DMWARN("reserve_metadata_snap message failed.");

8
drivers/md/md.c
View File

@ -5784,8 +5784,7 @@ static int add_new_disk(struct mddev * mddev, mdu_disk_info_t *info)
super_types[mddev->major_version].
validate_super(mddev, rdev);
if ((info->state & (1<<MD_DISK_SYNC)) &&
(!test_bit(In_sync, &rdev->flags) ||
rdev->raid_disk != info->raid_disk)) {
rdev->raid_disk != info->raid_disk) {
/* This was a hot-add request, but events doesn't
* match, so reject it.
*/
@ -6751,7 +6750,7 @@ struct md_thread *md_register_thread(void (*run) (struct mddev *), struct mddev
thread->tsk = kthread_run(md_thread, thread,
"%s_%s",
mdname(thread->mddev),
name ?: mddev->pers->name);
name);
if (IS_ERR(thread->tsk)) {
kfree(thread);
return NULL;
@ -7298,6 +7297,7 @@ void md_do_sync(struct mddev *mddev)
int skipped = 0;
struct md_rdev *rdev;
char *desc;
struct blk_plug plug;
/* just incase thread restarts... */
if (test_bit(MD_RECOVERY_DONE, &mddev->recovery))
@ -7447,6 +7447,7 @@ void md_do_sync(struct mddev *mddev)
}
mddev->curr_resync_completed = j;
blk_start_plug(&plug);
while (j < max_sectors) {
sector_t sectors;
@ -7552,6 +7553,7 @@ void md_do_sync(struct mddev *mddev)
* this also signals 'finished resyncing' to md_stop
*/
out:
blk_finish_plug(&plug);
wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active));
/* tell personality that we are finished */

3
drivers/md/multipath.c
View File

@ -474,7 +474,8 @@ static int multipath_run (struct mddev *mddev)
}
{
mddev->thread = md_register_thread(multipathd, mddev, NULL);
mddev->thread = md_register_thread(multipathd, mddev,
"multipath");
if (!mddev->thread) {
printk(KERN_ERR "multipath: couldn't allocate thread"
" for %s\n", mdname(mddev));

54
drivers/md/persistent-data/dm-space-map-checker.c
View File

@ -8,6 +8,7 @@
#include <linux/device-mapper.h>
#include <linux/export.h>
#include <linux/vmalloc.h>
#ifdef CONFIG_DM_DEBUG_SPACE_MAPS
@ -89,13 +90,23 @@ static int ca_create(struct count_array *ca, struct dm_space_map *sm)
ca->nr = nr_blocks;
ca->nr_free = nr_blocks;
ca->counts = kzalloc(sizeof(*ca->counts) * nr_blocks, GFP_KERNEL);
if (!ca->counts)
return -ENOMEM;
if (!nr_blocks)
ca->counts = NULL;
else {
ca->counts = vzalloc(sizeof(*ca->counts) * nr_blocks);
if (!ca->counts)
return -ENOMEM;
}
return 0;
}
static void ca_destroy(struct count_array *ca)
{
vfree(ca->counts);
}
static int ca_load(struct count_array *ca, struct dm_space_map *sm)
{
int r;
@ -126,12 +137,14 @@ static int ca_load(struct count_array *ca, struct dm_space_map *sm)
static int ca_extend(struct count_array *ca, dm_block_t extra_blocks)
{
dm_block_t nr_blocks = ca->nr + extra_blocks;
uint32_t *counts = kzalloc(sizeof(*counts) * nr_blocks, GFP_KERNEL);
uint32_t *counts = vzalloc(sizeof(*counts) * nr_blocks);
if (!counts)
return -ENOMEM;
memcpy(counts, ca->counts, sizeof(*counts) * ca->nr);
kfree(ca->counts);
if (ca->counts) {
memcpy(counts, ca->counts, sizeof(*counts) * ca->nr);
ca_destroy(ca);
}
ca->nr = nr_blocks;
ca->nr_free += extra_blocks;
ca->counts = counts;
@ -151,11 +164,6 @@ static int ca_commit(struct count_array *old, struct count_array *new)
return 0;
}
static void ca_destroy(struct count_array *ca)
{
kfree(ca->counts);
}
/*----------------------------------------------------------------*/
struct sm_checker {
@ -343,25 +351,25 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm)
int r;
struct sm_checker *smc;
if (!sm)
return NULL;
if (IS_ERR_OR_NULL(sm))
return ERR_PTR(-EINVAL);
smc = kmalloc(sizeof(*smc), GFP_KERNEL);
if (!smc)
return NULL;
return ERR_PTR(-ENOMEM);
memcpy(&smc->sm, &ops_, sizeof(smc->sm));
r = ca_create(&smc->old_counts, sm);
if (r) {
kfree(smc);
return NULL;
return ERR_PTR(r);
}
r = ca_create(&smc->counts, sm);
if (r) {
ca_destroy(&smc->old_counts);
kfree(smc);
return NULL;
return ERR_PTR(r);
}
smc->real_sm = sm;
@ -371,7 +379,7 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm)
ca_destroy(&smc->counts);
ca_destroy(&smc->old_counts);
kfree(smc);
return NULL;
return ERR_PTR(r);
}
r = ca_commit(&smc->old_counts, &smc->counts);
@ -379,7 +387,7 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm)
ca_destroy(&smc->counts);
ca_destroy(&smc->old_counts);
kfree(smc);
return NULL;
return ERR_PTR(r);
}
return &smc->sm;
@ -391,25 +399,25 @@ struct dm_space_map *dm_sm_checker_create_fresh(struct dm_space_map *sm)
int r;
struct sm_checker *smc;
if (!sm)
return NULL;
if (IS_ERR_OR_NULL(sm))
return ERR_PTR(-EINVAL);
smc = kmalloc(sizeof(*smc), GFP_KERNEL);
if (!smc)
return NULL;
return ERR_PTR(-ENOMEM);
memcpy(&smc->sm, &ops_, sizeof(smc->sm));
r = ca_create(&smc->old_counts, sm);
if (r) {
kfree(smc);
return NULL;
return ERR_PTR(r);
}
r = ca_create(&smc->counts, sm);
if (r) {
ca_destroy(&smc->old_counts);
kfree(smc);
return NULL;
return ERR_PTR(r);
}
smc->real_sm = sm;

11
drivers/md/persistent-data/dm-space-map-disk.c
View File

@ -290,7 +290,16 @@ struct dm_space_map *dm_sm_disk_create(struct dm_transaction_manager *tm,
dm_block_t nr_blocks)
{
struct dm_space_map *sm = dm_sm_disk_create_real(tm, nr_blocks);
return dm_sm_checker_create_fresh(sm);
struct dm_space_map *smc;
if (IS_ERR_OR_NULL(sm))
return sm;
smc = dm_sm_checker_create_fresh(sm);
if (IS_ERR(smc))
dm_sm_destroy(sm);
return smc;
}
EXPORT_SYMBOL_GPL(dm_sm_disk_create);

11
drivers/md/persistent-data/dm-transaction-manager.c
View File

@ -138,6 +138,9 @@ EXPORT_SYMBOL_GPL(dm_tm_create_non_blocking_clone);
void dm_tm_destroy(struct dm_transaction_manager *tm)
{
if (!tm->is_clone)
wipe_shadow_table(tm);
kfree(tm);
}
EXPORT_SYMBOL_GPL(dm_tm_destroy);
@ -344,8 +347,10 @@ static int dm_tm_create_internal(struct dm_block_manager *bm,
}
*sm = dm_sm_checker_create(inner);
if (!*sm)
if (IS_ERR(*sm)) {
r = PTR_ERR(*sm);
goto bad2;
}
} else {
r = dm_bm_write_lock(dm_tm_get_bm(*tm), sb_location,
@ -364,8 +369,10 @@ static int dm_tm_create_internal(struct dm_block_manager *bm,
}
*sm = dm_sm_checker_create(inner);
if (!*sm)
if (IS_ERR(*sm)) {
r = PTR_ERR(*sm);
goto bad2;
}
}
return 0;

13
drivers/md/raid1.c
View File

@ -517,8 +517,8 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect
int bad_sectors;
int disk = start_disk + i;
if (disk >= conf->raid_disks)
disk -= conf->raid_disks;
if (disk >= conf->raid_disks * 2)
disk -= conf->raid_disks * 2;
rdev = rcu_dereference(conf->mirrors[disk].rdev);
if (r1_bio->bios[disk] == IO_BLOCKED
@ -883,7 +883,6 @@ static void make_request(struct mddev *mddev, struct bio * bio)
const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
const unsigned long do_flush_fua = (bio->bi_rw & (REQ_FLUSH | REQ_FUA));
struct md_rdev *blocked_rdev;
int plugged;
int first_clone;
int sectors_handled;
int max_sectors;
@ -1034,7 +1033,6 @@ read_again:
* the bad blocks. Each set of writes gets it's own r1bio
* with a set of bios attached.
*/
plugged = mddev_check_plugged(mddev);
disks = conf->raid_disks * 2;
retry_write:
@ -1191,6 +1189,8 @@ read_again:
bio_list_add(&conf->pending_bio_list, mbio);
conf->pending_count++;
spin_unlock_irqrestore(&conf->device_lock, flags);
if (!mddev_check_plugged(mddev))
md_wakeup_thread(mddev->thread);
}
/* Mustn't call r1_bio_write_done before this next test,
* as it could result in the bio being freed.
@ -1213,9 +1213,6 @@ read_again:
/* In case raid1d snuck in to freeze_array */
wake_up(&conf->wait_barrier);
if (do_sync || !bitmap || !plugged)
md_wakeup_thread(mddev->thread);
}
static void status(struct seq_file *seq, struct mddev *mddev)
@ -2621,7 +2618,7 @@ static struct r1conf *setup_conf(struct mddev *mddev)
goto abort;
}
err = -ENOMEM;
conf->thread = md_register_thread(raid1d, mddev, NULL);
conf->thread = md_register_thread(raid1d, mddev, "raid1");
if (!conf->thread) {
printk(KERN_ERR
"md/raid1:%s: couldn't allocate thread\n",

26
drivers/md/raid10.c
View File

@ -1039,7 +1039,6 @@ static void make_request(struct mddev *mddev, struct bio * bio)
const unsigned long do_fua = (bio->bi_rw & REQ_FUA);
unsigned long flags;
struct md_rdev *blocked_rdev;
int plugged;
int sectors_handled;
int max_sectors;
int sectors;
@ -1239,7 +1238,6 @@ read_again:
* of r10_bios is recored in bio->bi_phys_segments just as with
* the read case.
*/
plugged = mddev_check_plugged(mddev);
r10_bio->read_slot = -1; /* make sure repl_bio gets freed */
raid10_find_phys(conf, r10_bio);
@ -1396,6 +1394,8 @@ retry_write:
bio_list_add(&conf->pending_bio_list, mbio);
conf->pending_count++;
spin_unlock_irqrestore(&conf->device_lock, flags);
if (!mddev_check_plugged(mddev))
md_wakeup_thread(mddev->thread);
if (!r10_bio->devs[i].repl_bio)
continue;
@ -1423,6 +1423,8 @@ retry_write:
bio_list_add(&conf->pending_bio_list, mbio);
conf->pending_count++;
spin_unlock_irqrestore(&conf->device_lock, flags);
if (!mddev_check_plugged(mddev))
md_wakeup_thread(mddev->thread);
}
/* Don't remove the bias on 'remaining' (one_write_done) until
@ -1448,9 +1450,6 @@ retry_write:
/* In case raid10d snuck in to freeze_array */
wake_up(&conf->wait_barrier);
if (do_sync || !mddev->bitmap || !plugged)
md_wakeup_thread(mddev->thread);
}
static void status(struct seq_file *seq, struct mddev *mddev)
@ -2310,7 +2309,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
if (r10_sync_page_io(rdev,
r10_bio->devs[sl].addr +
sect,
s<<9, conf->tmppage, WRITE)
s, conf->tmppage, WRITE)
== 0) {
/* Well, this device is dead */
printk(KERN_NOTICE
@ -2349,7 +2348,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
switch (r10_sync_page_io(rdev,
r10_bio->devs[sl].addr +
sect,
s<<9, conf->tmppage,
s, conf->tmppage,
READ)) {
case 0:
/* Well, this device is dead */
@ -2512,7 +2511,7 @@ read_more:
slot = r10_bio->read_slot;
printk_ratelimited(
KERN_ERR
"md/raid10:%s: %s: redirecting"
"md/raid10:%s: %s: redirecting "
"sector %llu to another mirror\n",
mdname(mddev),
bdevname(rdev->bdev, b),
@ -2661,7 +2660,8 @@ static void raid10d(struct mddev *mddev)
blk_start_plug(&plug);
for (;;) {
flush_pending_writes(conf);
if (atomic_read(&mddev->plug_cnt) == 0)
flush_pending_writes(conf);
spin_lock_irqsave(&conf->device_lock, flags);
if (list_empty(head)) {
@ -2890,6 +2890,12 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
/* want to reconstruct this device */
rb2 = r10_bio;
sect = raid10_find_virt(conf, sector_nr, i);
if (sect >= mddev->resync_max_sectors) {
/* last stripe is not complete - don't
* try to recover this sector.
*/
continue;
}
/* Unless we are doing a full sync, or a replacement
* we only need to recover the block if it is set in
* the bitmap
@ -3421,7 +3427,7 @@ static struct r10conf *setup_conf(struct mddev *mddev)
spin_lock_init(&conf->resync_lock);
init_waitqueue_head(&conf->wait_barrier);
conf->thread = md_register_thread(raid10d, mddev, NULL);
conf->thread = md_register_thread(raid10d, mddev, "raid10");
if (!conf->thread)
goto out;

67
drivers/md/raid5.c
View File

@ -196,12 +196,14 @@ static void __release_stripe(struct r5conf *conf, struct stripe_head *sh)
BUG_ON(!list_empty(&sh->lru));
BUG_ON(atomic_read(&conf->active_stripes)==0);
if (test_bit(STRIPE_HANDLE, &sh->state)) {
if (test_bit(STRIPE_DELAYED, &sh->state))
if (test_bit(STRIPE_DELAYED, &sh->state) &&
!test_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
list_add_tail(&sh->lru, &conf->delayed_list);
else if (test_bit(STRIPE_BIT_DELAY, &sh->state) &&
sh->bm_seq - conf->seq_write > 0)
list_add_tail(&sh->lru, &conf->bitmap_list);
else {
clear_bit(STRIPE_DELAYED, &sh->state);
clear_bit(STRIPE_BIT_DELAY, &sh->state);
list_add_tail(&sh->lru, &conf->handle_list);
}
@ -606,6 +608,12 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
* a chance*/
md_check_recovery(conf->mddev);
}
/*
* Because md_wait_for_blocked_rdev
* will dec nr_pending, we must
* increment it first.
*/
atomic_inc(&rdev->nr_pending);
md_wait_for_blocked_rdev(rdev, conf->mddev);
} else {
/* Acknowledged bad block - skip the write */
@ -1737,6 +1745,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
} else {
const char *bdn = bdevname(rdev->bdev, b);
int retry = 0;
int set_bad = 0;
clear_bit(R5_UPTODATE, &sh->dev[i].flags);
atomic_inc(&rdev->read_errors);
@ -1748,7 +1757,8 @@ static void raid5_end_read_request(struct bio * bi, int error)
mdname(conf->mddev),
(unsigned long long)s,
bdn);
else if (conf->mddev->degraded >= conf->max_degraded)
else if (conf->mddev->degraded >= conf->max_degraded) {
set_bad = 1;
printk_ratelimited(
KERN_WARNING
"md/raid:%s: read error not correctable "
@ -1756,8 +1766,9 @@ static void raid5_end_read_request(struct bio * bi, int error)
mdname(conf->mddev),
(unsigned long long)s,
bdn);
else if (test_bit(R5_ReWrite, &sh->dev[i].flags))
} else if (test_bit(R5_ReWrite, &sh->dev[i].flags)) {
/* Oh, no!!! */
set_bad = 1;
printk_ratelimited(
KERN_WARNING
"md/raid:%s: read error NOT corrected!! "
@ -1765,7 +1776,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
mdname(conf->mddev),
(unsigned long long)s,
bdn);
else if (atomic_read(&rdev->read_errors)
} else if (atomic_read(&rdev->read_errors)
> conf->max_nr_stripes)
printk(KERN_WARNING
"md/raid:%s: Too many read errors, failing device %s.\n",
@ -1777,7 +1788,11 @@ static void raid5_end_read_request(struct bio * bi, int error)
else {
clear_bit(R5_ReadError, &sh->dev[i].flags);
clear_bit(R5_ReWrite, &sh->dev[i].flags);
md_error(conf->mddev, rdev);
if (!(set_bad
&& test_bit(In_sync, &rdev->flags)
&& rdev_set_badblocks(
rdev, sh->sector, STRIPE_SECTORS, 0)))
md_error(conf->mddev, rdev);
}
}
rdev_dec_pending(rdev, conf->mddev);
@ -3582,8 +3597,18 @@ static void handle_stripe(struct stripe_head *sh)
finish:
/* wait for this device to become unblocked */
if (conf->mddev->external && unlikely(s.blocked_rdev))
md_wait_for_blocked_rdev(s.blocked_rdev, conf->mddev);
if (unlikely(s.blocked_rdev)) {
if (conf->mddev->external)
md_wait_for_blocked_rdev(s.blocked_rdev,
conf->mddev);
else
/* Internal metadata will immediately
* be written by raid5d, so we don't
* need to wait here.
*/
rdev_dec_pending(s.blocked_rdev,
conf->mddev);
}
if (s.handle_bad_blocks)
for (i = disks; i--; ) {
@ -3881,8 +3906,6 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
raid_bio->bi_next = (void*)rdev;
align_bi->bi_bdev = rdev->bdev;
align_bi->bi_flags &= ~(1 << BIO_SEG_VALID);
/* No reshape active, so we can trust rdev->data_offset */
align_bi->bi_sector += rdev->data_offset;
if (!bio_fits_rdev(align_bi) ||
is_badblock(rdev, align_bi->bi_sector, align_bi->bi_size>>9,
@ -3893,6 +3916,9 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
return 0;
}
/* No reshape active, so we can trust rdev->data_offset */
align_bi->bi_sector += rdev->data_offset;
spin_lock_irq(&conf->device_lock);
wait_event_lock_irq(conf->wait_for_stripe,
conf->quiesce == 0,
@ -3971,7 +3997,6 @@ static void make_request(struct mddev *mddev, struct bio * bi)
struct stripe_head *sh;
const int rw = bio_data_dir(bi);
int remaining;
int plugged;
if (unlikely(bi->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bi);
@ -3990,7 +4015,6 @@ static void make_request(struct mddev *mddev, struct bio * bi)
bi->bi_next = NULL;
bi->bi_phys_segments = 1; /* over-loaded to count active stripes */
plugged = mddev_check_plugged(mddev);
for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) {
DEFINE_WAIT(w);
int previous;
@ -4092,6 +4116,7 @@ static void make_request(struct mddev *mddev, struct bio * bi)
if ((bi->bi_rw & REQ_SYNC) &&
!test_and_set_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
atomic_inc(&conf->preread_active_stripes);
mddev_check_plugged(mddev);
release_stripe(sh);
} else {
/* cannot get stripe for read-ahead, just give-up */
@ -4099,10 +4124,7 @@ static void make_request(struct mddev *mddev, struct bio * bi)
finish_wait(&conf->wait_for_overlap, &w);
break;
}
}
if (!plugged)
md_wakeup_thread(mddev->thread);
spin_lock_irq(&conf->device_lock);
remaining = raid5_dec_bi_phys_segments(bi);
@ -4823,6 +4845,7 @@ static struct r5conf *setup_conf(struct mddev *mddev)
int raid_disk, memory, max_disks;
struct md_rdev *rdev;
struct disk_info *disk;
char pers_name[6];
if (mddev->new_level != 5
&& mddev->new_level != 4
@ -4946,7 +4969,8 @@ static struct r5conf *setup_conf(struct mddev *mddev)
printk(KERN_INFO "md/raid:%s: allocated %dkB\n",
mdname(mddev), memory);
conf->thread = md_register_thread(raid5d, mddev, NULL);
sprintf(pers_name, "raid%d", mddev->new_level);
conf->thread = md_register_thread(raid5d, mddev, pers_name);
if (!conf->thread) {
printk(KERN_ERR
"md/raid:%s: couldn't allocate thread.\n",
@ -5465,10 +5489,9 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev)
if (rdev->saved_raid_disk >= 0 &&
rdev->saved_raid_disk >= first &&
conf->disks[rdev->saved_raid_disk].rdev == NULL)
disk = rdev->saved_raid_disk;
else
disk = first;
for ( ; disk <= last ; disk++) {
first = rdev->saved_raid_disk;
for (disk = first; disk <= last; disk++) {
p = conf->disks + disk;
if (p->rdev == NULL) {
clear_bit(In_sync, &rdev->flags);
@ -5477,8 +5500,11 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev)
if (rdev->saved_raid_disk != disk)
conf->fullsync = 1;
rcu_assign_pointer(p->rdev, rdev);
break;
goto out;
}
}
for (disk = first; disk <= last; disk++) {
p = conf->disks + disk;
if (test_bit(WantReplacement, &p->rdev->flags) &&
p->replacement == NULL) {
clear_bit(In_sync, &rdev->flags);
@ -5490,6 +5516,7 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev)
break;
}
}
out:
print_raid5_conf(conf);
return err;
}

2
drivers/mtd/nand/cafe_nand.c
View File

@ -102,7 +102,7 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
static int cafe_device_ready(struct mtd_info *mtd)
{
struct cafe_priv *cafe = mtd->priv;
int result = !!(cafe_readl(cafe, NAND_STATUS) | 0x40000000);
int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000);
uint32_t irqs = cafe_readl(cafe, NAND_IRQ);
cafe_writel(cafe, irqs, NAND_IRQ);

7
drivers/mtd/nand/nand_base.c
View File

@ -3501,6 +3501,13 @@ int nand_scan_tail(struct mtd_info *mtd)
/* propagate ecc info to mtd_info */
mtd->ecclayout = chip->ecc.layout;
mtd->ecc_strength = chip->ecc.strength;
/*
* Initialize bitflip_threshold to its default prior scan_bbt() call.
* scan_bbt() might invoke mtd_read(), thus bitflip_threshold must be
* properly set.
*/
if (!mtd->bitflip_threshold)
mtd->bitflip_threshold = mtd->ecc_strength;
/* Check, if we should skip the bad block table scan */
if (chip->options & NAND_SKIP_BBTSCAN)

10
drivers/net/ethernet/freescale/gianfar.c
View File

@ -1804,18 +1804,16 @@ void gfar_configure_coalescing(struct gfar_private *priv,
if (priv->mode == MQ_MG_MODE) {
baddr = &regs->txic0;
for_each_set_bit(i, &tx_mask, priv->num_tx_queues) {
if (likely(priv->tx_queue[i]->txcoalescing)) {
gfar_write(baddr + i, 0);
gfar_write(baddr + i, 0);
if (likely(priv->tx_queue[i]->txcoalescing))
gfar_write(baddr + i, priv->tx_queue[i]->txic);
}
}
baddr = &regs->rxic0;
for_each_set_bit(i, &rx_mask, priv->num_rx_queues) {
if (likely(priv->rx_queue[i]->rxcoalescing)) {
gfar_write(baddr + i, 0);
gfar_write(baddr + i, 0);
if (likely(priv->rx_queue[i]->rxcoalescing))
gfar_write(baddr + i, priv->rx_queue[i]->rxic);
}
}
}
}

1
drivers/net/ethernet/intel/e1000e/defines.h
View File

@ -103,6 +103,7 @@
#define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */
#define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */
#define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */
#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */
#define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */
#define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */

75
drivers/net/ethernet/intel/e1000e/netdev.c
View File

@ -496,7 +496,7 @@ static void e1000_receive_skb(struct e1000_adapter *adapter,
* @sk_buff: socket buffer with received data
**/
static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
__le16 csum, struct sk_buff *skb)
struct sk_buff *skb)
{
u16 status = (u16)status_err;
u8 errors = (u8)(status_err >> 24);
@ -511,8 +511,8 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
if (status & E1000_RXD_STAT_IXSM)
return;
/* TCP/UDP checksum error bit is set */
if (errors & E1000_RXD_ERR_TCPE) {
/* TCP/UDP checksum error bit or IP checksum error bit is set */
if (errors & (E1000_RXD_ERR_TCPE | E1000_RXD_ERR_IPE)) {
/* let the stack verify checksum errors */
adapter->hw_csum_err++;
return;
@ -523,19 +523,7 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
return;
/* It must be a TCP or UDP packet with a valid checksum */
if (status & E1000_RXD_STAT_TCPCS) {
/* TCP checksum is good */
skb->ip_summed = CHECKSUM_UNNECESSARY;
} else {
/*
* IP fragment with UDP payload
* Hardware complements the payload checksum, so we undo it
* and then put the value in host order for further stack use.
*/
__sum16 sum = (__force __sum16)swab16((__force u16)csum);
skb->csum = csum_unfold(~sum);
skb->ip_summed = CHECKSUM_COMPLETE;
}
skb->ip_summed = CHECKSUM_UNNECESSARY;
adapter->hw_csum_good++;
}
@ -954,8 +942,7 @@ static bool e1000_clean_rx_irq(struct e1000_ring *rx_ring, int *work_done,
skb_put(skb, length);
/* Receive Checksum Offload */
e1000_rx_checksum(adapter, staterr,
rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);
e1000_rx_checksum(adapter, staterr, skb);
e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb);
@ -1341,8 +1328,7 @@ copydone:
total_rx_bytes += skb->len;
total_rx_packets++;
e1000_rx_checksum(adapter, staterr,
rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);
e1000_rx_checksum(adapter, staterr, skb);
e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb);
@ -1512,9 +1498,8 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_ring *rx_ring, int *work_done,
}
}
/* Receive Checksum Offload XXX recompute due to CRC strip? */
e1000_rx_checksum(adapter, staterr,
rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);
/* Receive Checksum Offload */
e1000_rx_checksum(adapter, staterr, skb);
e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb);
@ -3098,19 +3083,10 @@ static void e1000_configure_rx(struct e1000_adapter *adapter)
/* Enable Receive Checksum Offload for TCP and UDP */
rxcsum = er32(RXCSUM);
if (adapter->netdev->features & NETIF_F_RXCSUM) {
if (adapter->netdev->features & NETIF_F_RXCSUM)
rxcsum |= E1000_RXCSUM_TUOFL;
/*
* IPv4 payload checksum for UDP fragments must be
* used in conjunction with packet-split.
*/
if (adapter->rx_ps_pages)
rxcsum |= E1000_RXCSUM_IPPCSE;
} else {
else
rxcsum &= ~E1000_RXCSUM_TUOFL;
/* no need to clear IPPCSE as it defaults to 0 */
}
ew32(RXCSUM, rxcsum);
if (adapter->hw.mac.type == e1000_pch2lan) {
@ -5241,22 +5217,10 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
/* Jumbo frame support */
if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) {
if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
e_err("Jumbo Frames not supported.\n");
return -EINVAL;
}
/*
* IP payload checksum (enabled with jumbos/packet-split when
* Rx checksum is enabled) and generation of RSS hash is
* mutually exclusive in the hardware.
*/
if ((netdev->features & NETIF_F_RXCSUM) &&
(netdev->features & NETIF_F_RXHASH)) {
e_err("Jumbo frames cannot be enabled when both receive checksum offload and receive hashing are enabled. Disable one of the receive offload features before enabling jumbos.\n");
return -EINVAL;
}
if ((max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) &&
!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
e_err("Jumbo Frames not supported.\n");
return -EINVAL;
}
/* Supported frame sizes */
@ -6030,17 +5994,6 @@ static int e1000_set_features(struct net_device *netdev,
NETIF_F_RXALL)))
return 0;
/*
* IP payload checksum (enabled with jumbos/packet-split when Rx
* checksum is enabled) and generation of RSS hash is mutually
* exclusive in the hardware.
*/
if (adapter->rx_ps_pages &&
(features & NETIF_F_RXCSUM) && (features & NETIF_F_RXHASH)) {
e_err("Enabling both receive checksum offload and receive hashing is not possible with jumbo frames. Disable jumbos or enable only one of the receive offload features.\n");
return -EINVAL;
}
if (changed & NETIF_F_RXFCS) {
if (features & NETIF_F_RXFCS) {
adapter->flags2 &= ~FLAG2_CRC_STRIPPING;

31
drivers/net/ethernet/intel/igbvf/ethtool.c
View File

@ -357,21 +357,28 @@ static int igbvf_set_coalesce(struct net_device *netdev,
struct igbvf_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
if ((ec->rx_coalesce_usecs > IGBVF_MAX_ITR_USECS) ||
((ec->rx_coalesce_usecs > 3) &&
(ec->rx_coalesce_usecs < IGBVF_MIN_ITR_USECS)) ||
(ec->rx_coalesce_usecs == 2))
return -EINVAL;
/* convert to rate of irq's per second */
if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) {
adapter->current_itr = IGBVF_START_ITR;
adapter->requested_itr = ec->rx_coalesce_usecs;
} else {
if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) &&
(ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) {
adapter->current_itr = ec->rx_coalesce_usecs << 2;
adapter->requested_itr = 1000000000 /
(adapter->current_itr * 256);
}
} else if ((ec->rx_coalesce_usecs == 3) ||
(ec->rx_coalesce_usecs == 2)) {
adapter->current_itr = IGBVF_START_ITR;
adapter->requested_itr = ec->rx_coalesce_usecs;
} else if (ec->rx_coalesce_usecs == 0) {
/*
* The user's desire is to turn off interrupt throttling
* altogether, but due to HW limitations, we can't do that.
* Instead we set a very small value in EITR, which would
* allow ~967k interrupts per second, but allow the adapter's
* internal clocking to still function properly.
*/
adapter->current_itr = 4;
adapter->requested_itr = 1000000000 /
(adapter->current_itr * 256);
} else
return -EINVAL;
writel(adapter->current_itr,
hw->hw_addr + adapter->rx_ring->itr_register);

1
drivers/net/ethernet/ti/davinci_cpdma.c
View File

@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/dma-mapping.h>

4
drivers/net/usb/qmi_wwan.c
View File

@ -197,6 +197,10 @@ err:
static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
{
struct usbnet *dev = usb_get_intfdata(intf);
/* can be called while disconnecting */
if (!dev)
return 0;
return qmi_wwan_manage_power(dev, on);
}

1
drivers/net/wireless/ath/ath.h
View File

@ -143,6 +143,7 @@ struct ath_common {
u32 keymax;
DECLARE_BITMAP(keymap, ATH_KEYMAX);
DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX);
enum ath_crypt_caps crypt_caps;
unsigned int clockrate;

2
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -622,7 +622,7 @@ static int __ath9k_hw_init(struct ath_hw *ah)
if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) &&
!ah->is_pciexpress)) {
ah->config.serialize_regmode =
SER_REG_MODE_ON;

7
drivers/net/wireless/ath/ath9k/recv.c
View File

@ -695,9 +695,9 @@ static bool ath_edma_get_buffers(struct ath_softc *sc,
__skb_unlink(skb, &rx_edma->rx_fifo);
list_add_tail(&bf->list, &sc->rx.rxbuf);
ath_rx_edma_buf_link(sc, qtype);
} else {
bf = NULL;
}
bf = NULL;
}
*dest = bf;
@ -822,7 +822,8 @@ static bool ath9k_rx_accept(struct ath_common *common,
* descriptor does contain a valid key index. This has been observed
* mostly with CCMP encryption.
*/
if (rx_stats->rs_keyix == ATH9K_RXKEYIX_INVALID)
if (rx_stats->rs_keyix == ATH9K_RXKEYIX_INVALID ||
!test_bit(rx_stats->rs_keyix, common->ccmp_keymap))
rx_stats->rs_status &= ~ATH9K_RXERR_KEYMISS;
if (!rx_stats->rs_datalen) {

4
drivers/net/wireless/ath/key.c
View File

@ -556,6 +556,9 @@ int ath_key_config(struct ath_common *common,
return -EIO;
set_bit(idx, common->keymap);
if (key->cipher == WLAN_CIPHER_SUITE_CCMP)
set_bit(idx, common->ccmp_keymap);
if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
set_bit(idx + 64, common->keymap);
set_bit(idx, common->tkip_keymap);
@ -582,6 +585,7 @@ void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key)
return;
clear_bit(key->hw_key_idx, common->keymap);
clear_bit(key->hw_key_idx, common->ccmp_keymap);
if (key->cipher != WLAN_CIPHER_SUITE_TKIP)
return;

12
drivers/net/wireless/iwlwifi/iwl-mac80211.c
View File

@ -796,6 +796,18 @@ int iwlagn_mac_sta_state(struct ieee80211_hw *hw,
switch (op) {
case ADD:
ret = iwlagn_mac_sta_add(hw, vif, sta);
if (ret)
break;
/*
* Clear the in-progress flag, the AP station entry was added
* but we'll initialize LQ only when we've associated (which
* would also clear the in-progress flag). This is necessary
* in case we never initialize LQ because association fails.
*/
spin_lock_bh(&priv->sta_lock);
priv->stations[iwl_sta_id(sta)].used &=
~IWL_STA_UCODE_INPROGRESS;
spin_unlock_bh(&priv->sta_lock);
break;
case REMOVE:
ret = iwlagn_mac_sta_remove(hw, vif, sta);

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