Naoya Horiguchi 3e030ecc0f mm/memory-failure.c: fix memory leak by race between poison and unpoison ... When a memory error happens on an in-use page or (free and in-use) hugepage, the victim page is isolated with its refcount set to one. When you try to unpoison it later, unpoison_memory() calls put_page() for it twice in order to bring the page back to free page pool (buddy or free hugepage list). However, if another memory error occurs on the page which we are unpoisoning, memory_failure() returns without releasing the refcount which was incremented in the same call at first, which results in memory leak and unconsistent num_poisoned_pages statistics. This patch fixes it. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: <stable@vger.kernel.org> [2.6.32+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-05-23 09:37:30 -07:00
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Kconfig	parisc,metag: Do not hardcode maximum userspace stack size	2014-05-15 00:01:41 +01:00
Kconfig.debug	…
Makefile	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-04-12 14:49:50 -07:00
backing-dev.c	…
balloon_compaction.c	…
bootmem.c	…
bounce.c	…
cleancache.c	…
compaction.c	mm/compaction: make isolate_freepages start at pageblock boundary	2014-05-06 13:04:59 -07:00
debug-pagealloc.c	…
dmapool.c	…
early_ioremap.c	mm: create generic early_ioremap() support	2014-04-07 16:36:15 -07:00
fadvise.c	…
failslab.c	…
filemap.c	mm/filemap.c: avoid always dirtying mapping->flags on O_DIRECT	2014-05-23 09:37:29 -07:00
filemap_xip.c	…
fremap.c	…
frontswap.c	…
highmem.c	…
huge_memory.c	thp: close race between split and zap huge pages	2014-04-18 16:40:09 -07:00
hugetlb.c	hugetlb: ensure hugepage access is denied if hugepages are not supported	2014-05-06 13:04:58 -07:00
hugetlb_cgroup.c	…
hwpoison-inject.c	…
init-mm.c	…
internal.h	mm/readahead.c: inline ra_submit	2014-04-07 16:35:58 -07:00
interval_tree.c	…
iov_iter.c	…
kmemcheck.c	…
kmemleak-test.c	…
kmemleak.c	mm: postpone the disabling of kmemleak early logging	2014-05-11 17:55:48 +09:00
ksm.c	…
list_lru.c	…
maccess.c	…
madvise.c	mm: madvise: fix MADV_WILLNEED on shmem swapouts	2014-05-23 09:37:29 -07:00
memblock.c	mm/memblock.c: use PFN_PHYS()	2014-04-07 16:35:58 -07:00
memcontrol.c	memcg: fix swapcache charge from kernel thread context	2014-05-23 09:37:29 -07:00
memory-failure.c	mm/memory-failure.c: fix memory leak by race between poison and unpoison	2014-05-23 09:37:30 -07:00
memory.c	mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts	2014-04-25 16:05:40 -07:00
memory_hotplug.c	…
mempolicy.c	mm, mempolicy: remove per-process flag	2014-04-07 16:35:54 -07:00
mempool.c	mempool: add unlikely and likely hints	2014-04-07 16:35:55 -07:00
migrate.c	…
mincore.c	…
mlock.c	mm: try_to_unmap_cluster() should lock_page() before mlocking	2014-04-07 16:35:57 -07:00
mm_init.c	…
mmap.c	mm: per-thread vma caching	2014-04-07 16:35:53 -07:00
mmu_context.c	…
mmu_notifier.c	…
mmzone.c	…
mprotect.c	mm: move mmu notifier call from change_protection to change_pmd_range	2014-04-07 16:35:50 -07:00
mremap.c	mm, thp: close race between mremap() and split_huge_page()	2014-05-11 17:55:48 +09:00
msync.c	…
nobootmem.c	…
nommu.c	mm: fix 'ERROR: do not initialise globals to 0 or NULL' and coding style	2014-04-07 16:35:55 -07:00
oom_kill.c	…
page-writeback.c	mm/page-writeback.c: fix divide by zero in pos_ratio_polynom	2014-05-06 13:04:58 -07:00
page_alloc.c	mm/page_alloc.c: change mm debug routines back to EXPORT_SYMBOL	2014-04-07 16:35:59 -07:00
page_cgroup.c	…
page_io.c	…
page_isolation.c	…
pagewalk.c	…
percpu-km.c	…
percpu-vm.c	…
percpu.c	percpu: make pcpu_alloc_chunk() use pcpu_mem_free() instead of kfree()	2014-04-14 16:18:06 -04:00
pgtable-generic.c	…
process_vm_access.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-04-12 14:49:50 -07:00
quicklist.c	…
readahead.c	mm/readahead.c: inline ra_submit	2014-04-07 16:35:58 -07:00
rmap.c	mm: try_to_unmap_cluster() should lock_page() before mlocking	2014-04-07 16:35:57 -07:00
shmem.c	mm: Initialize error in shmem_file_aio_read()	2014-04-13 14:10:26 -07:00
slab.c	slab: Fix off by one in object max number tests.	2014-05-05 20:38:49 -07:00
slab.h	slub: use sysfs'es release mechanism for kmem_cache	2014-05-06 13:04:59 -07:00
slab_common.c	slub: use sysfs'es release mechanism for kmem_cache	2014-05-06 13:04:59 -07:00
slob.c	mm: slab/slub: use page->list consistently instead of page->lru	2014-04-11 10:06:06 +03:00
slub.c	slub: use sysfs'es release mechanism for kmem_cache	2014-05-06 13:04:59 -07:00
sparse-vmemmap.c	…
sparse.c	mm: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:35:54 -07:00
swap.c	…
swap_state.c	…
swapfile.c	…
truncate.c	mm: filemap: update find_get_pages_tag() to deal with shadow entries	2014-05-06 13:04:59 -07:00
util.c	nick kvfree() from apparmor	2014-05-06 14:02:53 -04:00
vmacache.c	mm: don't pointlessly use BUG_ON() for sanity check	2014-04-28 14:24:09 -07:00
vmalloc.c	mm/vmalloc.c: enhance vm_map_ram() comment	2014-04-07 16:35:55 -07:00
vmpressure.c	…
vmscan.c	revert "mm: vmscan: do not swap anon pages just because free+file is low"	2014-05-06 13:04:59 -07:00
vmstat.c	CPU hotplug notifiers registration fixes for 3.15-rc1	2014-04-07 14:55:46 -07:00
workingset.c	…
zbud.c	…
zsmalloc.c	…
zswap.c	Merge branch 'akpm' (incoming from Andrew)	2014-04-07 16:38:06 -07:00