Naoya Horiguchi 8d547ff4ac mm/memory-failure.c: move refcount only in !MF_COUNT_INCREASED ...

mce-test detected a test failure when injecting error to a thp tail
page.  This is because we take page refcount of the tail page in
madvise_hwpoison() while the fix in commit a3e0f9e47d
("mm/memory-failure.c: transfer page count from head page to tail page
after split thp") assumes that we always take refcount on the head page.

When a real memory error happens we take refcount on the head page where
memory_failure() is called without MF_COUNT_INCREASED set, so it seems
to me that testing memory error on thp tail page using madvise makes
little sense.

This patch cancels moving refcount in !MF_COUNT_INCREASED for valid
testing.

[[email protected]: s/&&/&/]
Signed-off-by: Naoya Horiguchi <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Wanpeng Li <[email protected]>
Cc: Chen Gong <[email protected]>
Cc: <[email protected]>	[3.9+: a3e0f9e47d]
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2014-02-10 16:01:43 -08:00

..

backing-dev.c

…

balloon_compaction.c

mm: print more details for bad_page()

2014-01-23 16:36:50 -08:00

bootmem.c

mm/bootmem.c: remove unused local `map'

2013-11-13 12:09:09 +09:00

bounce.c

block: Convert bio_for_each_segment() to bvec_iter

2013-11-23 22:33:49 -08:00

cleancache.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

compaction.c

mm: improve documentation of page_order

2014-01-23 16:36:53 -08:00

debug-pagealloc.c

…

dmapool.c

…

fadvise.c

…

failslab.c

…

filemap_xip.c

…

filemap.c

fix O_SYNC|O_APPEND syncing the wrong range on write()

2014-02-09 15:18:09 -05:00

fremap.c

mm: fix use-after-free in sys_remap_file_pages

2014-01-02 14:40:30 -08:00

frontswap.c

…

highmem.c

…

huge_memory.c

Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2014-01-27 21:03:39 -08:00

hugetlb_cgroup.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

hugetlb.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

hwpoison-inject.c

mm/hwpoison: add '#' to hwpoison_inject

2014-01-21 16:19:48 -08:00

init-mm.c

…

internal.h

mm/page-writeback.c: do not count anon pages as dirtyable memory

2014-01-29 16:22:39 -08:00

interval_tree.c

…

Kconfig

zsmalloc: move it under mm

2014-01-30 16:56:55 -08:00

Kconfig.debug

…

kmemcheck.c

…

kmemleak-test.c

…

kmemleak.c

mm: kmemleak: avoid false negatives on vmalloc'ed objects

2013-11-13 12:09:07 +09:00

ksm.c

mm: audit/fix non-modular users of module_init in core code

2014-01-23 16:36:52 -08:00

list_lru.c

…

maccess.c

…

madvise.c

…

Makefile

zsmalloc: move it under mm

2014-01-30 16:56:55 -08:00

memblock.c

memblock: add limit checking to memblock_virt_alloc

2014-01-29 16:22:40 -08:00

memcontrol.c

memcg: fix mutex not unlocked on memcg_create_kmem_cache fail path

2014-01-30 16:56:56 -08:00

memory_hotplug.c

mm/memory_hotplug.c: move register_memory_resource out of the lock_memory_hotplug

2014-01-23 16:36:52 -08:00

memory-failure.c

mm/memory-failure.c: move refcount only in !MF_COUNT_INCREASED

2014-02-10 16:01:43 -08:00

memory.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

mempolicy.c

mm/mempolicy.c: fix mempolicy printing in numa_maps

2014-01-30 16:56:56 -08:00

mempool.c

…

migrate.c

mm/migrate.c: fix setting of cpupid on page migration twice against normal page

2014-01-27 21:02:40 -08:00

mincore.c

mm: do_mincore() cleanup

2014-01-23 16:36:52 -08:00

mlock.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

mm_init.c

mm: bring back /sys/kernel/mm

2014-01-27 21:02:39 -08:00

mmap.c

mm: ignore VM_SOFTDIRTY on VMA merging

2014-01-23 16:36:53 -08:00

mmu_context.c

…

mmu_notifier.c

mm: audit/fix non-modular users of module_init in core code

2014-01-23 16:36:52 -08:00

mmzone.c

…

mprotect.c

mm: numa: do not automatically migrate KSM pages

2014-01-21 16:19:48 -08:00

mremap.c

…

msync.c

…

nobootmem.c

mm/nobootmem: free_all_bootmem again

2014-01-23 16:36:52 -08:00

nommu.c

mm: add overcommit_kbytes sysctl variable

2014-01-21 16:19:44 -08:00

oom_kill.c

mm, oom: base root bonus on current usage

2014-01-30 16:56:56 -08:00

page_alloc.c

mm: show message when updating min_free_kbytes in thp

2014-01-23 16:36:52 -08:00

page_cgroup.c

Merge branch 'akpm' (incoming from Andrew)

2014-01-21 19:05:45 -08:00

page_io.c

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30 11:19:05 -08:00

page_isolation.c

…

page-writeback.c

mm: __set_page_dirty_nobuffers() uses spin_lock_irqsave() instead of spin_lock_irq()

2014-02-06 13:48:51 -08:00

pagewalk.c

…

percpu-km.c

…

percpu-vm.c

…

percpu.c

Merge branch 'akpm' (incoming from Andrew)

2014-01-21 19:05:45 -08:00

pgtable-generic.c

mm: fix TLB flush race between migration, and change_protection_range

2013-12-18 19:04:51 -08:00

process_vm_access.c

…

quicklist.c

…

readahead.c

mm/readahead.c: fix do_readahead() for no readpage(s)

2014-01-29 16:22:40 -08:00

rmap.c

mm/rmap: fix coccinelle warnings

2014-01-23 16:36:53 -08:00

shmem.c

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

2014-01-28 08:38:04 -08:00

slab_common.c

slab: fix wrong retval on kmem_cache_create_memcg error path

2014-01-29 16:22:40 -08:00

slab.c

mm: Fix warning on make htmldocs caused by slab.c

2014-01-31 13:52:25 +02:00

slab.h

memcg, slab: RCU protect memcg_params for root caches

2014-01-23 16:36:51 -08:00

slob.c

…

slub.c

slub: do not assert not having lock in removing freed partial

2014-02-10 16:01:42 -08:00

sparse-vmemmap.c

mm/sparse: use memblock apis for early memory allocations

2014-01-21 16:19:47 -08:00

sparse.c

mm/sparse: use memblock apis for early memory allocations

2014-01-21 16:19:47 -08:00

swap_state.c

swap: add a simple detector for inappropriate swapin readahead

2014-02-06 13:48:51 -08:00

swap.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

swapfile.c

mm/swap: fix race on swap_info reuse between swapoff and swapon

2014-02-06 13:48:51 -08:00

truncate.c

…

util.c

mm: add overcommit_kbytes sysctl variable

2014-01-21 16:19:44 -08:00

vmalloc.c

Revert "mm/vmalloc: interchage the implementation of vmalloc_to_{pfn,page}"

2014-01-27 21:02:39 -08:00

vmpressure.c

memcg: make cgroup_event deal with mem_cgroup instead of cgroup_subsys_state

2013-11-22 18:20:43 -05:00

vmscan.c

mm/page-writeback.c: do not count anon pages as dirtyable memory

2014-01-29 16:22:39 -08:00

vmstat.c

mm, x86: Account for TLB flushes only when debugging

2014-01-25 09:10:41 +01:00

zbud.c

…

zsmalloc.c

zsmalloc: add copyright

2014-01-30 16:56:55 -08:00

zswap.c

mm/zswap.c: change params from hidden to ro

2014-01-23 16:36:50 -08:00