KAMEZAWA Hiroyuki 0b7f569e45 memcg: fix OOM killer under memcg ...

This patch tries to fix OOM Killer problems caused by hierarchy.
Now, memcg itself has OOM KILL function (in oom_kill.c) and tries to
kill a task in memcg.

But, when hierarchy is used, it's broken and correct task cannot
be killed. For example, in following cgroup

	/groupA/	hierarchy=1, limit=1G,
		01	nolimit
		02	nolimit
All tasks' memory usage under /groupA, /groupA/01, groupA/02 is limited to
groupA's 1Gbytes but OOM Killer just kills tasks in groupA.

This patch provides makes the bad process be selected from all tasks
under hierarchy. BTW, currently, oom_jiffies is updated against groupA
in above case. oom_jiffies of tree should be updated.

To see how oom_jiffies is used, please check mem_cgroup_oom_called()
callers.

[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: const fix]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2009-04-02 19:04:55 -07:00

..

ABI

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2009-04-01 10:57:49 -07:00

accounting

Documentation/accounting/getdelays.c: fix endless loop

2009-01-15 16:39:37 -08:00

acpi

ACPI: update debug parameter documentation

2008-11-07 21:45:29 -05:00

aoe

aoe: user can ask driver to forget previously detected devices

2008-02-08 09:22:31 -08:00

arm

Merge branch 'next-s3c-pm' of git://aeryn.fluff.org.uk/bjdooks/linux into devel

2009-03-26 22:44:43 +00:00

auxdisplay

.gitignore updates

2008-10-30 11:38:45 -07:00

blackfin

Blackfin arch: Add document about bfin-gpio

2009-01-07 23:14:38 +08:00

block

block: Repeated lines in switching-sched.txt

2009-03-26 11:01:28 +01:00

blockdev

Create/use more directory structure in the Documentation/ tree.

2008-11-14 17:28:53 +00:00

cdrom

doc/cdrom: Trvial documentation error, file not present

2008-10-10 08:22:44 +02:00

cgroups

memcg: fix OOM killer under memcg

2009-04-02 19:04:55 -07:00

connector

Documentation/connector/cn_test.c: don't use gfp_any()

2009-02-12 16:47:01 -08:00

console

Typo: fro -> from

2007-07-19 10:04:47 -07:00

cpu-freq

[CPUFREQ] ondemand/conservative: sanitize sampling_rate restrictions

2009-02-24 22:47:31 -05:00

cpuidle

cpuidle: Add Documentation

2008-02-14 00:16:13 -05:00

cris

fix random typos

2008-10-16 11:21:30 -07:00

crypto

async_tx, dmaengine: document channel allocation and api rework

2009-01-05 18:10:19 -07:00

development-process

Fix a typo in the development process document.

2009-01-08 16:32:13 -07:00

device-mapper

dm crypt: add documentation

2008-04-25 13:27:03 +01:00

DocBook

documentation: ignore byproducts from latex

2009-04-02 19:04:53 -07:00

driver-model

PATCH [1/2] Documentation/driver-model/device.txt: fix struct device_attribute

2009-02-22 09:27:15 -08:00

dvb

V4L/DVB (11138): get_dvb_firmware: add support for downloading the cx2584x firmware for pvrusb2

2009-03-30 12:43:31 -03:00

early-userspace

Documentation: Remove last references to BitKeeper.

2008-04-21 22:19:05 +00:00

fault-injection

fault-injection: fix example scripts in documentation

2007-07-16 09:05:45 -07:00

fb

fbdev: remove cyblafb driver

2009-04-01 08:59:33 -07:00

filesystems

documentation: update Documentation/filesystem/proc.txt and Documentation/sysctls

2009-04-02 19:04:53 -07:00

firmware_class

firmware_sample_driver.c: fix coding style

2008-04-21 22:23:30 +00:00

frv

move frv docs one level up

2008-02-03 15:54:28 +02:00

hwmon

hwmon: Add LTC4215 driver

2009-04-01 08:59:21 -07:00

i2c

Move the pcf8591 driver to hwmon

2009-03-30 21:46:43 +02:00

i2o

documentation: convert the Documentation directory to UTF-8

2007-05-09 08:58:19 +02:00

ia64

.gitignore updates

2008-10-30 11:38:45 -07:00

ide

ide: update warm-plug HOWTO

2009-01-06 17:21:00 +01:00

infiniband

IB/umad: Add P_Key index support

2007-10-09 19:59:15 -07:00

input

Merge commit 'v2.6.28-rc9' into next

2008-12-20 04:54:54 -05:00

ioctl

V4L/DVB (10870a): remove all references for video_decoder.h

2009-03-30 12:43:15 -03:00

isdn

Rationalise Randy's address a bit

2008-10-30 11:38:47 -07:00

ja_JP

Sync patch for jp_JP/stable_kernel_rules.txt

2009-01-28 15:55:48 -08:00

kbuild

kbuild: fix kbuild.txt typos

2009-01-14 21:42:51 +01:00

kdump

powerpc: Support for relocatable kdump kernel

2008-10-22 15:01:22 +11:00

ko_KR

HOWTO: update misspelling and word incorrected

2007-12-17 10:33:19 -08:00

laptops

ACPI: thinkpad-acpi: bump up version to 0.22

2009-01-15 13:48:24 -05:00

lguest

lguest: barrier me harder

2009-03-30 21:55:26 +10:30

m68k

[SCSI] 53c7xx: fix removal fallout

2008-01-11 18:22:30 -06:00

make

Documentation/make/headers_install.txt

2007-10-17 08:43:05 -07:00

mips

ide: remove unused CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ

2009-01-14 19:19:03 +01:00

misc-devices

drivers/misc/isl29003.c: driver for the ISL29003 ambient light sensor

2009-04-01 08:59:18 -07:00

mn10300

mn10300: add the MN10300/AM33 architecture to the kernel

2008-02-08 09:22:30 -08:00

mtd

[MTD] [NAND] nand_ecc.c: rewrite for improved performance

2008-08-16 10:55:33 +01:00

namespaces

The namespaces compatibility list doc

2007-11-29 09:24:53 -08:00

netlabel

Fix occurrences of "the the "

2007-05-09 08:57:56 +02:00

networking

ipv6: Fix incorrect disable_ipv6 behavior

2009-03-18 18:22:48 -07:00

parisc

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

PCI

PCI MSI: Add example request loop to MSI-HOWTO.txt

2009-03-20 11:35:04 -07:00

pcmcia

.gitignore updates

2008-10-30 11:38:45 -07:00

power

pm: document use of RTC in pm_trace

2008-10-16 11:21:29 -07:00

powerpc

powerpc: add mmc-spi-slot bindings

2009-04-01 08:59:23 -07:00

prctl

generic, x86: add tests for prctl PR_GET_TSC and PR_SET_TSC

2008-04-19 19:19:55 +02:00

RCU

rcu: documentation 1Q09 update

2009-03-10 15:55:11 -07:00

s390

documentation: update s390 header file paths

2009-01-06 15:59:28 -08:00

scheduler

sched, documentation: remove old O(1) scheduler document

2009-03-02 12:02:52 +01:00

scsi

[SCSI] osd: Documentation for OSD library

2009-03-12 12:58:09 -05:00

serial

Create/use more directory structure in the Documentation/ tree.

2008-11-14 17:28:53 +00:00

sh

sh: Kill off remaining CONFIG_SH_KGDB bits.

2008-12-22 18:44:05 +09:00

sound

Merge branch 'topic/oxygen' into for-linus

2009-03-24 00:36:17 +01:00

sparc

sparc: Remove Documentation/sparc/sbus_drivers.txt

2008-08-29 02:15:25 -07:00

spi

hwmon: (lm70) Code streamlining and cleanup

2009-01-07 16:37:34 +01:00

sysctl

documentation: fix unix_dgram_qlen description

2009-04-02 19:04:53 -07:00

telephony

remove mention of CONFIG_KMOD from documentation

2008-07-22 19:24:29 +10:00

thermal

thermal: update the documentation

2008-04-29 02:49:47 -04:00

timers

hpet: /dev/hpet - fixes and cleanup

2008-07-31 18:45:41 +02:00

tracers

doc: mmiotrace.txt, buffer size control change

2009-02-15 20:05:13 +01:00

uml

Fix typos in /Documentation : 'U-Z'

2006-11-30 04:58:40 +01:00

usb

USB: usbmon: Add binary API v1

2009-03-24 16:20:36 -07:00

video4linux

V4L/DVB (11225): v4lgrab: fix compilation warnings

2009-03-30 12:43:41 -03:00

vm

mm: remove try_to_munlock from vmscan

2009-01-06 15:59:03 -08:00

w1

w1: send status messages after command processing

2009-01-08 08:31:14 -08:00

watchdog

.gitignore updates

2008-10-30 11:38:45 -07:00

wimax

i2400m: documentation and instructions for usage

2009-01-07 10:00:18 -08:00

x86

Merge branch 'x86/doc' into x86/core

2009-03-05 21:49:44 +01:00

zh_CN

Chinese: add translation of Codingstyle

2008-01-24 20:40:04 -08:00

00-INDEX

Merge branch 'doc-subdirs' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs

2008-11-15 11:51:03 -08:00

applying-patches.txt

[PATCH] Docs update: typos, corrections and additions to applying-patches.txt

2006-01-10 08:01:54 -08:00

atomic_ops.txt

documentation: atomic_add_unless() doesn't imply mb() on failure

2008-02-23 17:52:36 -08:00

bad_memory.txt

Document handling of bad memory

2008-12-03 16:09:53 -07:00

basic_profiling.txt

[PATCH] oprofile: report anonymous region samples

2005-06-24 00:06:27 -07:00

binfmt_misc.txt

documentation: convert the Documentation directory to UTF-8

2007-05-09 08:58:19 +02:00

braille-console.txt

Basic braille screen reader support

2008-04-30 08:29:52 -07:00

bt8xxgpio.txt

gpio: add bt8xxgpio driver

2008-07-25 10:53:30 -07:00

BUG-HUNTING

Documentation: add hint about call traces & module symbols to BUG-HUNTING

2008-02-06 10:41:09 -08:00

c2port.txt

Add c2 port support

2008-11-12 17:17:18 -08:00

cachetlb.txt

remove unused flush_tlb_pgtables

2007-10-19 11:53:34 -07:00

Changes

Documentation/Changes: add required versions for new filesystems

2009-01-29 18:19:30 -08:00

CodingStyle

fix emacs indenting howto filename expansion

2009-01-29 18:19:29 -08:00

cpu-hotplug.txt

x86: use possible_cpus=NUM to extend the possible cpus allowed

2008-12-18 12:08:05 +01:00

cpu-load.txt

[PATCH] Documentation: CPU load calculation description

2007-03-01 14:53:39 -08:00

cputopology.txt

cpumask: Use topology_core_cpumask()/topology_thread_cpumask()

2009-01-11 19:12:49 +01:00

credentials.txt

CRED: Documentation

2008-11-14 10:39:26 +11:00

dcdbas.txt

[PATCH] dcdbas: add Dell Systems Management Base Driver with sysfs support

2005-09-07 16:57:27 -07:00

debugging-modules.txt

Documentation: Clarify when module debugging actually works.

2008-02-03 15:27:38 +02:00

debugging-via-ohci1394.txt

firewire: fw-ohci: add option for remote debugging

2008-04-18 17:55:33 +02:00

dell_rbu.txt

trivial: fix an -> a typos in documentation and comments

2009-01-06 11:28:07 +01:00

devices.txt

[SCSI] major.h: char-major number for OSD device driver

2009-03-12 12:58:05 -05:00

DMA-API.txt

dma-debug: Documentation update

2009-03-17 12:56:47 +01:00

DMA-attributes.txt

powerpc/cell: Add DMA_ATTR_WEAK_ORDERING dma attribute and use in Cell IOMMU code

2008-07-22 10:39:36 +10:00

DMA-ISA-LPC.txt

Fix typos in /Documentation : 'T''

2006-11-30 04:55:36 +01:00

DMA-mapping.txt

documentation: update header file paths

2009-01-06 15:59:28 -08:00

dmaengine.txt

async_tx, dmaengine: document channel allocation and api rework

2009-01-05 18:10:19 -07:00

dontdiff

dontdiff: Fix asm exclude

2009-03-26 15:45:43 -07:00

dynamic-debug-howto.txt

Dynamic debug: allow simple quoting of words

2009-03-24 16:38:27 -07:00

edac.txt

Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.

2008-07-26 12:00:06 -07:00

eisa.txt

Fix typos in /Documentation : 'U-Z'

2006-11-30 04:58:40 +01:00

email-clients.txt

Documentation/email-clients.txt: add some info about gmail

2008-11-06 15:41:19 -08:00

exception.txt

Documentation: remove duplicated words

2006-10-03 22:57:56 +02:00

feature-removal-schedule.txt

gpio: gpio_{request,free}() now required (feature removal)

2009-04-02 19:04:51 -07:00

ftrace.txt

ftrace: improve documentation

2008-11-28 13:15:14 +01:00

gpio.txt

gpio: gpio_{request,free}() now required (feature removal)

2009-04-02 19:04:51 -07:00

highuid.txt

[SPARC]: Remove SunOS and Solaris binary support.

2008-04-21 15:10:15 -07:00

HOWTO

Remove Andrew Morton's http://www.zip.com.au/~akpm/

2008-10-16 11:21:32 -07:00

hw_random.txt

hw_random doc updates

2008-03-24 19:22:19 -07:00

ics932s401

ics932s401: new clock generator chip driver

2008-11-12 17:17:18 -08:00

initrd.txt

use the newc archive format as requested by initramfs

2008-02-03 14:54:41 +02:00

Intel-IOMMU.txt

Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.

2008-07-26 12:00:06 -07:00

io_ordering.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

io-mapping.txt

io mapping: improve documentation

2008-11-03 18:21:44 +01:00

IO-mapping.txt

Documentation: move DMA-mapping.txt to Doc/PCI/

2009-01-29 18:19:29 -08:00

iostats.txt

Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.

2008-07-26 12:00:06 -07:00

IPMI.txt

IPMI: new NMI handling

2007-10-18 14:37:32 -07:00

IRQ-affinity.txt

genirq: Expose default irq affinity mask (take 3)

2008-06-05 15:18:30 +02:00

IRQ.txt

[PATCH] genirq: irq: document what an IRQ is

2006-06-29 10:26:25 -07:00

irqflags-tracing.txt

[PATCH] lockdep: irqtrace subsystem, docs

2006-07-03 15:27:03 -07:00

isapnp.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

java.txt

Documentation/java.txt: typo and grammar fixes

2007-10-20 02:37:21 +02:00

kernel-doc-nano-HOWTO.txt

kernel-doc: preferred ending marker and examples

2009-02-11 14:25:36 -08:00

kernel-docs.txt

doc: update to URL and status of kernel-docs.txt entry

2008-06-06 11:29:10 -07:00

kernel-parameters.txt

Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

2009-04-01 09:47:12 -07:00

keys-request-key.txt

keys: allow the callout data to be passed as a blob rather than a string

2008-04-29 08:06:16 -07:00

keys.txt

Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.

2008-07-26 12:00:06 -07:00

kobject.txt

kobject: Make Documentation/kobject.txt a little more coherent.

2009-01-06 10:44:32 -08:00

kprobes.txt

kprobes: support probing module __exit function

2009-01-06 15:59:21 -08:00

kref.txt

docs: convert kref semaphore to mutex

2008-02-06 10:41:09 -08:00

ldm.txt

LDM: Fix for Windows Vista dynamic disks

2007-05-21 09:58:40 -07:00

leds-class.txt

Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.

2008-07-26 12:00:06 -07:00

local_ops.txt

documentation: local_ops fix on_each_cpu

2008-12-01 13:51:26 +01:00

lockdep-design.txt

lockdep: get_user_chars() redo

2009-02-14 23:28:22 +01:00

lockstat.txt

lockstat: contend with points

2008-10-20 15:43:10 +02:00

logo.svg

linux.conf.au 2009: Tuz

2009-03-16 07:55:37 -07:00

logo.txt

linux.conf.au 2009: Tuz

2009-03-16 07:55:37 -07:00

magic-number.txt

documentation: update header file paths

2009-01-06 15:59:28 -08:00

Makefile

docsrc: build Documentation/ sources

2008-08-12 16:07:30 -07:00

ManagementStyle

docs: fix ManagementStyle book name

2008-10-30 11:38:46 -07:00

markers.txt

markers: comment marker_synchronize_unregister() on data dependency

2008-11-28 16:47:41 +01:00

mca.txt

The ps2esdi driver was marked as BROKEN more than two years ago due to being

2008-03-17 09:03:05 +01:00

md.txt

md: Tidy up rdev_size_store a bit:

2008-07-21 14:22:18 +10:00

memory-barriers.txt

read_barrier_depends arch fixlets

2008-05-14 10:05:18 -07:00

memory-hotplug.txt

mm: show node to memory section relationship with symlinks in sysfs

2009-01-06 15:59:00 -08:00

memory.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mono.txt

Fix "can not" in Documentation and Kconfig

2006-10-03 22:53:09 +02:00

mutex-design.txt

Documentation: Add nested versions of mutex locks to docs

2007-10-20 00:15:26 +02:00

nmi_watchdog.txt

x86, nmi-watchdog: update procfs nmi_watchdog file documentation v2

2008-10-30 19:07:04 +01:00

nommu-mmap.txt

NOMMU: Make mmap allocation page trimming behaviour configurable.

2009-01-08 12:04:47 +00:00

numastat.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

oops-tracing.txt

Taint kernel after WARN_ON(condition)

2008-04-29 08:05:59 -07:00

parport-lowlevel.txt

plip: fix parport_register_device name parameter

2007-11-26 19:39:01 -08:00

parport.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pi-futex.txt

fix a typo in Documentation/pi-futex.txt

2006-10-03 23:39:02 +02:00

pnp.txt

Documentation: Replace obsolete "driverfs" with "sysfs".

2008-01-24 20:40:04 -08:00

preempt-locking.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

printk-formats.txt

DOC: add printk-formats.txt

2008-11-12 17:17:17 -08:00

prio_tree.txt

Documentation: remove duplicated words

2006-10-03 22:57:56 +02:00

rbtree.txt

[PATCH] Documentation/rbtree.txt

2007-02-11 10:51:35 -08:00

rfkill.txt

rfkill: add master_switch_mode and EPO lock to rfkill and rfkill-input

2008-10-31 19:00:09 -04:00

robust-futex-ABI.txt

Fix typos in /Documentation : 'U-Z'

2006-11-30 04:58:40 +01:00

robust-futexes.txt

Fix typos in /Documentation : Misc

2006-11-30 05:21:10 +01:00

rt-mutex-design.txt

[PATCH] typo fixes for rt-mutex-design.txt

2006-10-01 00:39:24 -07:00

rt-mutex.txt

[PATCH] pi-futex: rt mutex docs

2006-06-27 17:32:47 -07:00

rtc.txt

rtc: cleanup example code

2008-02-06 10:41:14 -08:00

SAK.txt

Remove Andrew Morton's old email accounts

2008-10-16 11:21:32 -07:00

SecurityBugs

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

SELinux.txt

selinux: add support for installing a dummy policy (v2)

2008-08-27 08:54:08 +10:00

serial-console.txt

[PATCH] doc: more serial-console info

2006-03-25 08:23:00 -08:00

sgi-ioc4.txt

[PATCH] ioc4: Core driver rewrite

2005-06-21 18:46:32 -07:00

sgi-visws.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

SM501.txt

Tweak Documentation/SM501.txt

2007-10-17 08:43:06 -07:00

Smack.txt

smack: Add a new '-CIPSO' option to the network address label configuration

2009-03-28 15:01:37 +11:00

sparse.txt

kbuild: sparse needs CF not CHECKFLAGS

2008-07-25 22:12:39 +02:00

spinlocks.txt

Add additional examples in Documentation/spinlocks.txt

2008-04-11 13:21:14 -06:00

stable_api_nonsense.txt

stable_api_nonsense.txt: Disambiguate the use of "this" by using "that" to refer to the syscall interface

2007-07-30 14:25:12 -07:00

stable_kernel_rules.txt

Update stable tree documentation

2008-10-29 15:03:49 -07:00

SubmitChecklist

documentation: explain memory barriers

2008-10-16 11:21:32 -07:00

SubmittingDrivers

Remove Andrew Morton's old email accounts

2008-10-16 11:21:32 -07:00

SubmittingPatches

Merge branch 'docs' of git://git.lwn.net/linux-2.6

2008-10-16 12:18:16 -07:00

svga.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

sysfs-rules.txt

sysfs-rules.txt: reword API stability statement

2008-07-21 21:54:59 -07:00

sysrq.txt

filesystem freeze: allow SysRq emergency thaw to thaw frozen filesystems

2009-04-01 08:59:17 -07:00

tracepoints.txt

tracepoints: Documentation TPPROTO misspelt in Documentation/tracepoints.txt

2008-11-29 15:13:42 +01:00

unaligned-memory-access.txt

introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol

2008-07-25 10:53:27 -07:00

unicode.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

unshare.txt

Documentation: remove duplicated words

2006-10-03 22:57:56 +02:00

VGA-softcursor.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

video-output.txt

output: Add output class document

2006-12-20 01:46:58 -05:00

volatile-considered-harmful.txt

Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.

2008-07-26 12:00:06 -07:00

voyager.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

zorro.txt

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00