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Takamori Yamaguchi b0a8cc58e6 mm: bugfix: set current->reclaim_state to NULL while returning from kswapd() 
In kswapd(), set current->reclaim_state to NULL before returning, as
current->reclaim_state holds reference to variable on kswapd()'s stack.

In rare cases, while returning from kswapd() during memory offlining,
__free_slab() and freepages() can access the dangling pointer of
current->reclaim_state.

Signed-off-by: Takamori Yamaguchi <takamori.yamaguchi@jp.sony.com>
Signed-off-by: Aaditya Kumar <aaditya.kumar@ap.sony.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2012-11-09 06:41:47 +01:00
..
Kconfig mm: enable CONFIG_COMPACTION by default 2012-10-09 16:22:53 +09:00
Kconfig.debug
…
Makefile mm: replace vma prio_tree with an interval tree 2012-10-09 16:22:39 +09:00
backing-dev.c
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bootmem.c mm: fix-up zone present pages 2012-10-09 16:22:54 +09:00
bounce.c
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cleancache.c
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compaction.c mm: compaction: correct the nr_strict va isolated check for CMA 2012-10-19 14:07:47 -07:00
debug-pagealloc.c
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dmapool.c
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fadvise.c
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failslab.c
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filemap.c readahead: fault retry breaks mmap file read random detection 2012-10-09 16:22:47 +09:00
filemap_xip.c mm: move all mmu notifier invocations to be done outside the PT lock 2012-10-09 16:22:58 +09:00
fremap.c remap_file_pages: correctly handle the case of a NULL vm_ops pointer 2012-10-19 13:37:57 -07:00
frontswap.c
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highmem.c
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huge_memory.c mm: huge_memory: Fix build error. 2012-10-15 07:59:15 -07:00
hugetlb.c mm: document PageHuge somewhat 2012-10-09 16:23:03 +09:00
hugetlb_cgroup.c
…
hwpoison-inject.c
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init-mm.c
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internal.h mm, thp: fix mlock statistics 2012-10-09 16:23:03 +09:00
interval_tree.c mm: add CONFIG_DEBUG_VM_RB build option 2012-10-09 16:22:42 +09:00
kmemcheck.c
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kmemleak-test.c
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kmemleak.c kmemleak: use rbtree instead of prio tree 2012-10-09 16:22:39 +09:00
ksm.c mm: wrap calls to set_pte_at_notify with invalidate_range_start and invalidate_range_end 2012-10-09 16:22:58 +09:00
maccess.c
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madvise.c
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memblock.c x86, mm: Trim memory in memblock to be page aligned 2012-10-24 11:52:21 -07:00
memcontrol.c memcg: move mem_cgroup_is_root upwards 2012-10-09 16:22:55 +09:00
memory-failure.c mm anon rmap: replace same_anon_vma linked list with an interval tree. 2012-10-09 16:22:41 +09:00
memory.c mm, thp: fix mapped pages avoiding unevictable list on mlock 2012-10-09 16:23:02 +09:00
memory_hotplug.c memory-hotplug: suppress "Trying to free nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning 2012-10-09 16:23:04 +09:00
mempolicy.c mm, mempolicy: fix printing stack contents in numa_maps 2012-10-16 18:00:50 -07:00
mempool.c
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migrate.c
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mincore.c
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mlock.c mm, thp: fix mlock statistics 2012-10-09 16:23:03 +09:00
mm_init.c
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mmap.c mm: avoid taking rmap locks in move_ptes() 2012-10-09 16:22:42 +09:00
mmu_context.c
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mmu_notifier.c mm/mmu_notifier: allocate mmu_notifier in advance 2012-10-25 14:37:53 -07:00
mmzone.c
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mprotect.c
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mremap.c mm: move all mmu notifier invocations to be done outside the PT lock 2012-10-09 16:22:58 +09:00
msync.c
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nobootmem.c mm: fix-up zone present pages 2012-10-09 16:22:54 +09:00
nommu.c mm: replace vma prio_tree with an interval tree 2012-10-09 16:22:39 +09:00
oom_kill.c oom: remove deprecated oom_adj 2012-10-09 16:22:24 +09:00
page-writeback.c
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page_alloc.c mm, numa: avoid setting zone_reclaim_mode unless a node is sufficiently distant 2012-10-25 14:37:53 -07:00
page_cgroup.c
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page_io.c
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page_isolation.c mm/page_alloc: refactor out __alloc_contig_migrate_alloc() 2012-10-09 16:22:52 +09:00
pagewalk.c
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percpu-km.c
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percpu-vm.c
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percpu.c
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pgtable-generic.c thp: introduce pmdp_invalidate() 2012-10-09 16:22:29 +09:00
process_vm_access.c
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quicklist.c
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readahead.c
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rmap.c mm: fix XFS oops due to dirty pages without buffers on s390 2012-10-25 14:37:52 -07:00
shmem.c tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking 2012-10-09 23:33:55 -04:00
slab.c
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slab.h
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slab_common.c mm, slab: release slab_mutex earlier in kmem_cache_destroy() 2012-10-10 09:25:08 +03:00
slob.c Merge branch 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes 2012-10-19 15:40:18 -07:00
slub.c
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sparse-vmemmap.c
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sparse.c
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swap.c mm: remove vma arg from page_evictable 2012-10-09 16:22:55 +09:00
swap_state.c
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swapfile.c vfs: make path_openat take a struct filename pointer 2012-10-12 20:15:09 -04:00
truncate.c mm: use clear_page_mlock() in page_remove_rmap() 2012-10-09 16:22:56 +09:00
util.c
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vmalloc.c mm: use %pK for /proc/vmallocinfo 2012-10-09 16:23:03 +09:00
vmscan.c mm: bugfix: set current->reclaim_state to NULL while returning from kswapd() 2012-11-09 06:41:47 +01:00
vmstat.c mm: remove unevictable_pgs_mlockfreed 2012-10-09 16:22:59 +09:00