David Rientjes ddd588b5dd oom: suppress nodes that are not allowed from meminfo on oom kill ... The oom killer is extremely verbose for machines with a large number of cpus and/or nodes. This verbosity can often be harmful if it causes other important messages to be scrolled from the kernel log and incurs a signicant time delay, specifically for kernels with CONFIG_NODES_SHIFT > 8. This patch causes only memory information to be displayed for nodes that are allowed by current's cpuset when dumping the VM state. Information for all other nodes is irrelevant to the oom condition; we don't care if there's an abundance of memory elsewhere if we can't access it. This only affects the behavior of dumping memory information when an oom is triggered. Other dumps, such as for sysrq+m, still display the unfiltered form when using the existing show_mem() interface. Additionally, the per-cpu pageset statistics are extremely verbose in oom killer output, so it is now suppressed. This removes nodes_weight(current->mems_allowed) * (1 + nr_cpus) lines from the oom killer output. Callers may use __show_mem(SHOW_MEM_FILTER_NODES) to filter disallowed nodes. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-03-22 17:44:01 -07:00
..
lzo	lib: add support for LZO-compressed kernels	2010-01-11 09:34:04 -08:00
raid6	Move .gitignore from drivers/md to lib/raid6	2010-08-30 17:35:52 +10:00
reed_solomon
xz	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
zlib_deflate
zlib_inflate	inflate_fast: sout is already a short so ptr arith was off by one.	2010-03-12 15:52:44 -08:00
.gitignore
argv_split.c
atomic64.c	lib: Fix atomic64_add_unless return value convention	2010-03-01 11:38:46 -08:00
atomic64_test.c	ARM: 6213/1: atomic64_test: add ARM as supported architecture	2010-07-27 10:43:46 +01:00
audit.c
average.c	lib: Improve EWMA efficiency by using bitshifts	2010-12-06 15:58:43 -05:00
bcd.c
bitmap.c	lib/bitmap.c: use hex_to_bin()	2010-10-26 16:52:18 -07:00
bitrev.c
btree.c	lib/btree: fix possible NULL pointer dereference	2010-05-15 12:48:10 -07:00
bug.c	modules: Fix module_bug_list list corruption race	2010-10-05 11:29:27 -07:00
bust_spinlocks.c
check_signature.c
checksum.c
cmdline.c
cpu-notifier-error-inject.c	fault-injection: add CPU notifier error injection module	2010-05-27 09:12:48 -07:00
cpu_rmap.c	lib: cpu_rmap: CPU affinity reverse-mapping	2011-01-24 14:51:56 -08:00
cpumask.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
crc7.c
crc16.c
crc32.c	revert "crc32: use __BYTE_ORDER macro for endian detection"	2010-05-26 08:19:23 -07:00
crc32defs.h
ctype.c
debug_locks.c	Revert "debug_locks: set oops_in_progress if we will log messages."	2010-11-29 15:18:28 -08:00
debugobjects.c	debugobjects: Add hint for better object identification	2011-03-08 16:10:38 +01:00
dec_and_lock.c
decompress.c	decompressors: add boot-time XZ support	2011-01-13 08:03:25 -08:00
decompress_bunzip2.c	Decompressors: include <linux/slab.h> in <linux/decompress/mm.h>	2011-01-13 08:03:23 -08:00
decompress_inflate.c	decompressors: check input size in decompress_inflate.c	2011-01-13 08:03:25 -08:00
decompress_unlzma.c	Decompressors: validate match distance in decompress_unlzma.c	2011-01-13 08:03:24 -08:00
decompress_unlzo.c	Decompressors: fix callback-to-callback mode in decompress_unlzo.c	2011-01-13 08:03:24 -08:00
decompress_unxz.c	decompressors: add boot-time XZ support	2011-01-13 08:03:25 -08:00
devres.c	lib/devres.c: fix comment typo	2010-07-11 22:16:32 +02:00
div64.c	div64_u64(): improve precision on 32bit platforms	2010-10-26 16:52:19 -07:00
dma-debug.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
dump_stack.c
dynamic_debug.c	dynamic_debug: add #include <linux/sched.h>	2011-02-03 15:59:58 -08:00
extable.c
fault-inject.c
find_last_bit.c
find_next_bit.c
flex_array.c	flex_array: export symbols to modules	2011-01-13 08:03:11 -08:00
gcd.c
gen_crc32table.c	crc32: major optimization	2010-05-25 08:07:06 -07:00
genalloc.c	genalloc: fix allocation from end of pool	2010-06-29 15:29:30 -07:00
halfmd4.c
hexdump.c	include/linux/printk.h lib/hexdump.c: neatening and add CONFIG_PRINTK guard	2011-01-13 08:03:10 -08:00
hweight.c	x86: Add optimized popcnt variants	2010-04-06 15:52:11 -07:00
idr.c	docbook: add idr/ida to kernel-api docbook	2010-10-26 17:40:56 -07:00
inflate.c	MN10300: Don't try and #include <linux/slab.h> in lib/inflate.c from bootloader	2010-08-12 09:51:35 -07:00
int_sqrt.c
iomap.c
iomap_copy.c
iommu-helper.c	iommu: inline iommu_num_pages	2010-08-09 20:45:05 -07:00
ioremap.c	ACPI, APEI, Generic Hardware Error Source POLL/IRQ/NMI notification type support	2011-01-12 03:06:19 -05:00
irq_regs.c
is_single_threaded.c
kasprintf.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
Kconfig	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem	2011-03-11 14:11:11 -05:00
Kconfig.debug	Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6	2011-03-21 15:55:26 -07:00
Kconfig.kgdb	mips,kgdb: kdb low level trap catch and stack trace	2010-05-20 21:04:26 -05:00
Kconfig.kmemcheck
klist.c
kobject.c	kobject: Introduce kset_find_obj_hinted.	2010-10-22 10:16:44 -07:00
kobject_uevent.c	kobject_uevent: fix typo in comments	2010-08-23 18:12:46 -07:00
kref.c	kref: Add a kref_sub function	2010-11-22 13:25:13 +10:00
lcm.c	block: Fix overrun in lcm() and move it to lib	2010-03-15 12:47:59 +01:00
libcrc32c.c
list_debug.c	Expand CONFIG_DEBUG_LIST to several other list operations	2011-02-18 11:32:28 -08:00
list_sort.c	lib/list_sort: test: check element addresses	2010-10-26 16:52:19 -07:00
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lru_cache.c
Makefile	Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2011-03-16 17:21:00 -07:00
nlattr.c	net: fix nla_policy_len to actually _iterate_ over the policy	2011-02-28 12:38:25 -08:00
parser.c	lib/parser: cleanup match_number()	2010-10-26 16:52:19 -07:00
percpu_counter.c	percpucounter: Optimize __percpu_counter_add a bit through the use of this_cpu() options.	2010-12-17 15:07:18 +01:00
plist.c	plist: Add priority list test	2011-03-11 15:14:48 -05:00
prio_heap.c
prio_tree.c
proportions.c
radix-tree.c	radix_tree: radix_tree_gang_lookup_tag_slot() may never return	2011-01-26 10:50:04 +10:00
random32.c	Merge branch 'master' into for-next	2010-06-16 18:08:13 +02:00
ratelimit.c	ratelimit: fix the return value when __ratelimit() fails to acquire the lock	2010-04-07 08:38:04 -07:00
rational.c	lib/rational.c needs module.h	2010-01-11 09:34:05 -08:00
rbtree.c	Export the augmented rbtree helper functions	2011-01-28 12:16:59 +10:00
reciprocal_div.c
rwsem-spinlock.c	rwsem generic spinlock: use IRQ save/restore spinlocks	2010-04-07 16:15:05 -07:00
rwsem.c	rwsem: Remove redundant asmregparm annotation	2011-01-27 12:30:40 +01:00
scatterlist.c	scatterlist: prevent invalid free when alloc fails	2010-08-30 19:55:09 +02:00
sha1.c
show_mem.c	oom: suppress nodes that are not allowed from meminfo on oom kill	2011-03-22 17:44:01 -07:00
smp_processor_id.c
sort.c
spinlock_debug.c
string.c	lib/string.c: simplify strnstr()	2010-03-06 11:26:35 -08:00
string_helpers.c
swiotlb.c	swiotlb: fix wrong panic	2011-02-25 15:07:36 -08:00
syscall.c
textsearch.c	textsearch: doc - fix spelling in lib/textsearch.c.	2011-01-24 23:33:30 -08:00
timerqueue.c	timerqueue: Make timerqueue_getnext() static inline	2010-12-11 12:34:34 +01:00
ts_bm.c
ts_fsm.c
ts_kmp.c
uuid.c	Unified UUID/GUID definition	2010-05-19 22:40:47 -04:00
vsprintf.c	lib/vsprintf.c: fix vscnprintf() if @size is == 0	2011-01-13 08:03:10 -08:00