Konstantin Khlebnikov f0cb3c76ae mm: drain percpu lru add/rotate page-vectors on cpu hot-unplug ...

This cpu hotplug hook was accidentally removed in commit 00a62ce91e55
("mm: fix Committed_AS underflow on large NR_CPUS environment")

The visible effect of this accident: some pages are borrowed in per-cpu
page-vectors.  Truncate can deal with it, but these pages cannot be
reused while this cpu is offline.  So this is like a temporary memory
leak.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Eric B Munson <ebmunson@us.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2012-03-21 17:54:58 -07:00

..

backing-dev.c

backing-dev: fix wakeup timer races with bdi_unregister()

2012-02-01 16:52:49 +08:00

bootmem.c

mm: bootmem: try harder to free pages in bulk

2012-01-10 16:30:45 -08:00

bounce.c

mm: remove the second argument of k[un]map_atomic()

2012-03-20 21:48:27 +08:00

cleancache.c

mm: cleancache core ops functions and config

2011-05-26 10:01:36 -06:00

compaction.c

mm: compaction: make compact_control order signed

2012-03-21 17:54:56 -07:00

debug-pagealloc.c

mm, x86: Remove debug_pagealloc_enabled

2011-12-06 09:24:07 +01:00

dmapool.c

mm: fix implicit stat.h usage in dmapool.c

2011-10-31 09:20:12 -04:00

fadvise.c

fadvise: only initiate writeback for specified range with FADV_DONTNEED

2012-01-10 16:30:43 -08:00

failslab.c

switch debugfs to umode_t

2012-01-03 22:54:56 -05:00

filemap_xip.c

mm/filemap_xip.c: fix race condition in xip_file_fault()

2012-02-03 16:16:41 -08:00

filemap.c

mm: remove the second argument of k[un]map_atomic()

2012-03-20 21:48:27 +08:00

fremap.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

highmem.c

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-06 19:44:47 -08:00

huge_memory.c

thp: optimize away unnecessary page table locking

2012-03-21 17:54:57 -07:00

hugetlb.c

mm: hugetlb: bail out unmapping after serving reference page

2012-03-21 17:54:57 -07:00

hwpoison-inject.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

init-mm.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

internal.h

mm: thp: tail page refcounting fix

2011-11-02 16:06:57 -07:00

Kconfig

Merge branch 'master' into x86/memblock

2011-11-28 09:46:22 -08:00

Kconfig.debug

mm: more intensive memory corruption debugging

2012-01-10 16:30:42 -08:00

kmemcheck.c

kmemcheck: Fix build errors due to missing slab.h

2010-03-30 22:02:32 +09:00

kmemleak-test.c

kmemleak: remove memset by using kzalloc

2011-01-27 18:31:51 +00:00

kmemleak.c

kmemleak: Disable early logging when kmemleak is off by default

2012-01-20 16:57:05 +00:00

ksm.c

mm: remove the second argument of k[un]map_atomic()

2012-03-20 21:48:27 +08:00

maccess.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

madvise.c

fs: kill i_alloc_sem

2011-07-20 20:47:46 -04:00

Makefile

Cross Memory Attach

2011-10-31 17:30:44 -07:00

memblock.c

memblock: Fix size aligning of memblock_alloc_base_nid()

2012-03-01 10:53:18 +01:00

memcontrol.c

mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode

2012-03-21 17:54:54 -07:00

memory_hotplug.c

mm: compaction: introduce sync-light migration for use by compaction

2012-01-12 20:13:09 -08:00

memory-failure.c

thp: allow a hwpoisoned head page to be put back to LRU

2012-03-21 17:54:58 -07:00

memory.c

mm: make get_mm_counter static-inline

2012-03-21 17:54:55 -07:00

mempolicy.c

mm: fix move/migrate_pages() race on task struct

2012-03-21 17:54:58 -07:00

mempool.c

mempool: fix first round failure behavior

2012-01-10 16:30:45 -08:00

migrate.c

mm: fix move/migrate_pages() race on task struct

2012-03-21 17:54:58 -07:00

mincore.c

mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode

2012-03-21 17:54:54 -07:00

mlock.c

vm: avoid using find_vma_prev() unnecessarily

2012-03-06 18:23:36 -08:00

mm_init.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

mmap.c

mm: search from free_area_cache for the bigger size

2012-03-21 17:54:56 -07:00

mmu_context.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

mmu_notifier.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

mmzone.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

mprotect.c

mm: replace PAGE_MIGRATION with IS_ENABLED(CONFIG_MIGRATION)

2012-03-21 17:54:57 -07:00

mremap.c

mremap: enforce rmap src/dst vma ordering in case of vma_merge() succeeding in copy_vma()

2012-01-10 16:30:44 -08:00

msync.c

sanitize vfs_fsync calling conventions

2010-05-21 18:31:21 -04:00

nobootmem.c

Merge branch 'master' into x86/memblock

2011-11-28 09:46:22 -08:00

nommu.c

NOMMU: Don't need to clear vm_mm when deleting a VMA

2012-02-24 08:59:04 -08:00

oom_kill.c

mm, oom: force oom kill on sysrq+f

2012-03-21 17:54:58 -07:00

page_alloc.c

mm: drain percpu lru add/rotate page-vectors on cpu hot-unplug

2012-03-21 17:54:58 -07:00

page_cgroup.c

page_cgroup: fix horrid swap accounting regression

2012-03-06 08:18:23 -08:00

page_io.c

block: kill off REQ_UNPLUG

2011-03-10 08:52:27 +01:00

page_isolation.c

mm: page_isolation: codeclean fix comment and rm unneeded val init

2010-10-26 16:52:11 -07:00

page-writeback.c

Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux

2012-01-10 16:59:59 -08:00

pagewalk.c

mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode

2012-03-21 17:54:54 -07:00

percpu-km.c

percpu: clear memory allocated with the km allocator

2010-10-02 10:28:42 +03:00

percpu-vm.c

percpu: use bitmap_clear

2012-01-20 09:23:16 -08:00

percpu.c

Kmemleak patches

2012-01-14 18:11:11 -08:00

pgtable-generic.c

mm/pgtable-generic.c: fix CONFIG_SWAP=n build

2011-01-26 10:49:58 +10:00

prio_tree.c

sanitize <linux/prefetch.h> usage

2011-05-20 12:50:29 -07:00

process_vm_access.c

Fix race in process_vm_rw_core

2012-02-02 12:55:17 -08:00

quicklist.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

readahead.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

rmap.c

rmap: anon_vma_prepare: Reduce code duplication by calling anon_vma_chain_link

2012-03-21 17:54:57 -07:00

shmem.c

tmpfs: security xattr setting on inode creation

2012-03-21 17:54:58 -07:00

slab.c

Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux

2012-01-11 18:52:23 -08:00

slob.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

slub.c

mm,x86,um: move CMPXCHG_DOUBLE config option

2012-01-12 20:13:03 -08:00

sparse-vmemmap.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

sparse.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

swap_state.c

mm: make swapin readahead skip over holes

2012-03-21 17:54:56 -07:00

swap.c

mm: drain percpu lru add/rotate page-vectors on cpu hot-unplug

2012-03-21 17:54:58 -07:00

swapfile.c

mm: make swapin readahead skip over holes

2012-03-21 17:54:56 -07:00

thrash.c

mm/thrash.c: quiet sparse noise

2011-10-31 17:30:50 -07:00

truncate.c

mm: fix comment typo of truncate_inode_pages_range

2012-02-23 11:52:19 +01:00

util.c

procfs: mark thread stack correctly in proc/<pid>/maps

2012-03-21 17:54:58 -07:00

vmalloc.c

mm: remove the second argument of k[un]map_atomic()

2012-03-20 21:48:27 +08:00

vmscan.c

vmscan: handle isolated pages with lru lock released

2012-03-21 17:54:57 -07:00

vmstat.c

mm,x86,um: move CMPXCHG_LOCAL config option

2012-01-12 20:13:03 -08:00