linux/Documentation
Josh Poimboeuf 9a7c348ba6 ftrace: Add return address pointer to ftrace_ret_stack
Storing this value will help prevent unwinders from getting out of sync
with the function graph tracer ret_stack.  Now instead of needing a
stateful iterator, they can compare the return address pointer to find
the right ret_stack entry.

Note that an array of 50 ftrace_ret_stack structs is allocated for every
task.  So when an arch implements this, it will add either 200 or 400
bytes of memory usage per task (depending on whether it's a 32-bit or
64-bit platform).

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/a95cfcc39e8f26b89a430c56926af0bb217bc0a1.1471607358.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-08-24 12:15:14 +02:00
..
ABI pwm: Changes for v4.8-rc1 2016-08-06 00:01:33 -04:00
accounting taskstats: fix nl parsing in accounting/getdelays.c 2016-04-27 12:50:14 -04:00
acpi Merge branches 'acpi-bus', 'acpi-pci', 'acpica' and 'acpi-doc' 2016-07-25 13:41:25 +02:00
aoe
arm ARM: at91: Documentation: update the sama5d2 entry 2016-06-21 17:09:34 +02:00
arm64 ARM64: ACPI: Update documentation for latest specification version 2016-06-21 16:26:09 +01:00
auxdisplay
backlight
blackfin
block doc: update block/queue-sysfs.txt entries 2016-08-11 09:37:23 -06:00
blockdev zram: cosmetic: cleanup documentation 2016-07-26 16:19:19 -07:00
bus-devices
cdrom
cgroup-v1 Three fixes for the docs build, including removing an annoying warning on 2016-08-07 10:23:17 -04:00
cma
connector samples: connector: from Documentation to samples directory 2016-04-28 07:47:35 -06:00
console
cpu-freq Revert "cpufreq: pcc-cpufreq: update default value of cpuinfo_transition_latency" 2016-07-22 23:51:06 +02:00
cpuidle
cris
crypto crypto: doc - Fix typo 2016-05-31 16:41:55 +08:00
development-process docs: deprecate kernel-doc-nano-HOWTO.txt 2016-07-20 16:45:37 -06:00
device-mapper block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
devicetree pwm: Changes for v4.8-rc1 2016-08-06 00:01:33 -04:00
dmaengine Documentation: dmaengine: fix typo for device_resume 2016-06-03 14:00:21 -06:00
DocBook Three fixes for the docs build, including removing an annoying warning on 2016-08-07 10:23:17 -04:00
driver-model ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
early-userspace
EDID
extcon
fault-injection
fb Documentation: fb: fix spelling mistakes 2016-05-10 12:05:27 +03:00
features powerpc: Add HAVE_PERF_USER_STACK_DUMP support 2016-05-11 21:54:05 +10:00
filesystems Three fixes for the docs build, including removing an annoying warning on 2016-08-07 10:23:17 -04:00
firmware_class Documentation: fix common spelling mistakes 2016-04-28 07:51:59 -06:00
fmc
fpga
frv
gpio gpio: Fix paths to GPIO driver source files 2016-06-13 09:30:31 +02:00
gpu drm: add generic zpos property 2016-07-29 09:59:30 +02:00
hid HID: add Alps I2C HID Touchpad-Stick support 2016-06-17 23:12:04 +02:00
hwmon hwmon: (ftsteutates) Correct ftp urls in driver documentation 2016-08-12 05:56:34 -07:00
i2c Documentation: i2c: slave: give proper example for pm usage 2016-07-23 22:04:20 +02:00
ia64
ide
iio
infiniband Round two of 4.7 merge window patches 2016-05-28 11:04:16 -07:00
input Input: clarify we want BTN_TOOL_<name> on proximity 2016-04-06 10:23:09 -07:00
ioctl nilfs2: move ioctl interface and disk layout to uapi separately 2016-08-02 19:35:21 -04:00
isdn isdn: i4l: move active-isdn drivers to staging 2016-03-05 15:00:38 -08:00
ja_JP Documentatio: HOWTO: remove regression postings info from translations 2016-04-16 10:49:08 -06:00
kbuild kbuild, x86: Track generated headers with generated-y 2016-07-07 15:58:44 +02:00
kdump kdump: fix dmesg gdbmacro to work with record based printk 2016-06-03 15:06:22 -07:00
ko_KR Documentation: HOWTO: update git home URL in translations 2016-04-16 10:49:18 -06:00
laptops leds: documentation: 'ide-disk' to 'disk-activity' 2016-06-27 08:58:35 +02:00
leds leds: documentation: 'ide-disk' to 'disk-activity' 2016-06-27 08:58:35 +02:00
livepatch Merge branches 'for-4.7/core', 'for-4.7/livepatching-doc' and 'for-4.7/livepatching-ppc64' into for-linus 2016-05-17 12:06:35 +02:00
locking locking/Documentation/lockdep: Fix spelling mistakes 2016-04-28 10:40:57 +02:00
m68k
media [media] cx23885-cardlist.rst: add a new card 2016-07-23 08:14:48 -03:00
memory-devices
metag
mic mpssd: fix buffer overflow warning 2016-06-03 13:31:37 -06:00
mips
misc-devices Merge char-misc-next into staging-next 2016-02-22 14:46:24 -08:00
mmc mmc: core: Extend sysfs with DSR register 2016-07-25 10:34:51 +02:00
mn10300
mtd
namespaces
netlabel
networking rxrpc: Fix races between skb free, ACK generation and replying 2016-08-06 00:08:40 -04:00
nfc
nios2
nvdimm libnvdimm, btt: update the usage section in Documentation 2016-06-17 16:23:23 -07:00
nvmem
parisc
PCI PCI: Spread interrupt vectors in pci_alloc_irq_vectors() 2016-07-21 15:57:03 -05:00
pcmcia
phy
platform
power PM / sleep: Update some system sleep documentation 2016-08-13 02:54:04 +02:00
powerpc powerpc/eeh: rename EEH from "extended" to "enhanced" error handling 2016-04-11 20:30:42 +10:00
pps Documentation: pps: fix spelling mistake 2016-04-28 07:23:59 -06:00
prctl Documentation: Fix int/unsigned int comparison 2016-02-17 14:09:43 -07:00
pti
ptp Another relatively boring cycle for the docs tree: typo fixes, translation 2016-03-17 12:09:35 -07:00
rapidio rapidio/tsi721: add messaging mbox selector parameter 2016-08-02 19:35:34 -04:00
RCU Documentation: Fix spelling mistake 2016-06-14 16:01:00 -07:00
s390 s390/Documentation: improve sort command for trace buffer 2016-06-13 15:58:23 +02:00
scheduler Documenation: update cgroup's document path 2016-08-03 15:43:58 -06:00
scsi Merge remote-tracking branch 'mkp-scsi/4.7/scsi-fixes' into fixes 2016-06-18 11:59:01 -07:00
security Some big changes this month, headlined by the addition of a new formatted 2016-07-26 13:05:11 -07:00
serial TTY and Serial driver update for 4.7-rc1 2016-05-20 20:57:27 -07:00
sh
sound ASoC: Updates for v4.8 2016-07-26 10:35:31 +02:00
sphinx Merge branch 'docs-next' of git://git.lwn.net/linux into topic/docs-next 2016-07-23 07:55:59 -03:00
sphinx-static doc-rst: customize RTD theme, drop padding of inline literal 2016-08-14 12:15:09 -06:00
spi
sysctl printk: add kernel parameter to control writes to /dev/kmsg 2016-08-02 19:35:06 -04:00
target target: make close_session optional 2016-05-10 01:19:26 -07:00
thermal Doc: PM: Fix a typo in intel_powerclamp.txt 2016-06-30 13:05:40 -06:00
timers Documentation: fix common spelling mistakes 2016-04-28 07:51:59 -06:00
tpm tpm: Add documentation for the tpm_vtpm_proxy device driver 2016-06-25 17:26:35 +03:00
trace ftrace: Add return address pointer to ftrace_ret_stack 2016-08-24 12:15:14 +02:00
usb Documentation: tiny typo fix in usb/gadget_multi.txt 2016-06-23 08:09:10 -06:00
vDSO
virtual KVM: documentation: fix KVM_CAP_X2APIC_API information 2016-08-04 14:01:21 +02:00
vm Three fixes for the docs build, including removing an annoying warning on 2016-08-07 10:23:17 -04:00
w1 w1: add ability to set (SRAM) and store (EEPROM) configuration for temp sensors like DS18B20 2016-05-01 14:37:49 -07:00
watchdog Documentation/watchdog: check return value for magic close 2016-07-25 11:02:17 +02:00
wimax
x86 Three fixes for the docs build, including removing an annoying warning on 2016-08-07 10:23:17 -04:00
xtensa
zh_CN docs: deprecate kernel-doc-nano-HOWTO.txt 2016-07-20 16:45:37 -06:00
.gitignore Add .pyc files to .gitignore 2016-06-30 13:07:33 -06:00
00-INDEX docs: deprecate kernel-doc-nano-HOWTO.txt 2016-07-20 16:45:37 -06:00
adding-syscalls.txt documentation: trivial typo: adding-syscalls.txt: s/statat/fstatat/ 2016-04-18 11:31:49 -06:00
applying-patches.txt
assoc_array.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
bcache.txt bcache: documentation formatting, edited for clarity, stripe alignment notes 2016-06-23 07:58:38 -06:00
binfmt_misc.txt binfmt_misc: add F option description to documentation 2016-03-30 14:12:22 -07:00
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
cec.txt [media] cec.txt: add CEC framework documentation 2016-06-22 08:36:50 -03:00
cgroup-v2.txt Merge branch 'for-4.6-ns' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2016-03-21 10:05:13 -07:00
Changes
circular-buffers.txt
clk.txt
coccinelle.txt coccicheck: refer to Documentation/coccinelle.txt and wiki 2016-07-22 12:13:39 +02:00
CodeOfConflict
CodingStyle docs: deprecate kernel-doc-nano-HOWTO.txt 2016-07-20 16:45:37 -06:00
conf.py docs: Set the Sphinx default highlight language to "guess" 2016-08-12 14:11:12 -06:00
cpu-hotplug.txt
cpu-load.txt
cputopology.txt topology/sysfs: provide drawer id and siblings attributes 2016-06-13 15:58:27 +02:00
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt Documentation: update the devices.txt documentation 2016-03-29 10:11:44 -07:00
digsig.txt
DMA-API-HOWTO.txt dma-mapping: always provide the dma_map_ops based implementation 2016-01-20 17:09:18 -08:00
DMA-API.txt dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
DMA-attributes.txt dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
dma-buf-sharing.txt dma-buf: Update docs for SYNC ioctl 2016-03-21 09:26:45 +01:00
DMA-ISA-LPC.txt
dontdiff GCC plugin infrastructure 2016-06-07 22:57:10 +02:00
dynamic-debug-howto.txt
edac.txt
efi-stub.txt doc: efi-stub.txt: Fix arm64 paths 2015-12-14 15:24:03 +00:00
eisa.txt
email-clients.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcc-plugins.txt GCC plugin infrastructure 2016-06-07 22:57:10 +02:00
gcov.txt
gdb-kernel-debugging.txt Revert "scripts/gdb: add documentation example for radix tree" 2016-07-15 14:54:27 +09:00
highuid.txt
HOWTO Documentation: Howto: Fixed subtitles style 2016-03-09 15:30:03 -07:00
hsi.txt
hw_random.txt
hwspinlock.txt
index.rst Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux 2016-08-01 21:44:08 -04:00
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt iommu/vt-d: Fix link to Intel IOMMU Specification 2016-01-29 12:32:12 +01:00
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt Documentation/IRQ-domain.txt: Document irq_domain_create_{linear, tree} 2016-03-31 00:32:59 -06:00
IRQ.txt
irqflags-tracing.txt
isa.txt Documentation: Add ISA bus driver documentation 2016-05-02 09:32:04 -07:00
isapnp.txt
java.txt
kasan.txt mm, kasan: SLAB support 2016-03-25 16:37:42 -07:00
kcov.txt kernel: add kcov code coverage 2016-03-22 15:36:02 -07:00
kernel-doc-nano-HOWTO.txt docs: deprecate kernel-doc-nano-HOWTO.txt 2016-07-20 16:45:37 -06:00
kernel-docs.txt Documentation: update Michael K. Johnson's work 2016-04-15 15:37:25 -06:00
kernel-documentation.rst docs: kernel-documentation: remove some highlight directives 2016-08-12 15:12:36 -06:00
kernel-parameters.txt Three fixes for the docs build, including removing an annoying warning on 2016-08-07 10:23:17 -04:00
kernel-per-CPU-kthreads.txt Documenation: update cgroup's document path 2016-08-03 15:43:58 -06:00
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt
kref.txt
kselftest.txt Documentation: kselftest: Remove duplicate word 2016-03-09 15:33:38 -07:00
ldm.txt
local_ops.txt
lockup-watchdogs.txt
logo.gif
logo.txt
lzo.txt Documentation: lzo: fix spelling mistakes 2016-04-28 07:23:11 -06:00
magic-number.txt
mailbox.txt
Makefile [media] samples: v4l: from Documentation to samples directory 2016-05-09 18:34:37 -03:00
Makefile.sphinx Three fixes for the docs build, including removing an annoying warning on 2016-08-07 10:23:17 -04:00
ManagementStyle
md-cluster.txt md-cluster: change array_sectors and update size are not supported 2016-05-04 12:39:35 -07:00
md.txt Documentation: fix wrong value in md.txt 2016-06-23 08:08:36 -06:00
memory-barriers.txt locking/Documentation: Clarify limited control-dependency scope 2016-06-17 09:54:45 +02:00
memory-hotplug.txt memory_hotplug: introduce CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE 2016-05-19 19:12:14 -07:00
men-chameleon-bus.txt
module-signing.txt Documentation/module-signing.txt: Note need for version info if reusing a key 2016-07-27 12:38:00 +09:30
mono.txt
nommu-mmap.txt
ntb.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt phy: core: Allow children node to be overridden 2016-04-29 16:39:39 +02:00
pi-futex.txt
pinctrl.txt pinctrl: Flag strict is a field in struct pinmux_ops 2016-06-23 10:50:10 +02:00
pnp.txt
preempt-locking.txt
printk-formats.txt mm, printk: introduce new format string for flags 2016-03-15 16:55:16 -07:00
pwm.txt pwm: Update documentation 2016-05-17 14:48:04 +02:00
ramoops.txt ramoops: use DT reserved-memory bindings 2016-08-05 11:21:36 -07:00
rbtree.txt
remoteproc.txt
rfkill.txt rfkill: Add documentation about LED triggers 2016-02-24 09:13:12 +01:00
robust-futex-ABI.txt
robust-futexes.txt Documentation: robust-futexes: fix spelling mistakes 2016-04-28 07:26:41 -06:00
rpmsg.txt rpmsg: use module_rpmsg_driver in existing drivers and examples 2016-05-06 11:09:01 -07:00
rtc.txt rtc: implement a sysfs interface for clock offset 2016-03-14 17:08:16 +01:00
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches SubmittingPatches: fix spelling of "git send-email" 2016-01-25 12:30:18 -07:00
svga.txt
sync_file.txt Documentation: Fix some grammar mistakes in sync_file.txt 2016-06-03 13:24:16 -06:00
sysfs-rules.txt
sysrq.txt Doc: correct the location of sysrq.c 2016-04-28 08:02:36 -06:00
this_cpu_ops.txt
ubsan.txt UBSAN: run-time undefined behavior sanity checker 2016-01-20 17:09:18 -08:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt
volatile-considered-harmful.txt
workqueue.txt workqueue: Fix a typo in workqueue.txt 2016-07-06 02:37:38 -06:00
xillybus.txt Documentation: xillybus: fix spelling mistake 2016-04-28 07:44:54 -06:00
xz.txt
zorro.txt