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| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2013-04-29 15:06:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 15:54:28 -0700 |
| commit | e39862958d54e4cccec01f5cdef3ae298e7386b8 (patch) | |
| tree | 17affc01548272abd32cc52e16a90c5a1a6442a5 /mm/memory-failure.c | |
| parent | 546ae2d2f717230b2ff423295f8d6dc489a878e8 (diff) | |
| download | op-kernel-dev-e39862958d54e4cccec01f5cdef3ae298e7386b8.zip op-kernel-dev-e39862958d54e4cccec01f5cdef3ae298e7386b8.tar.gz | |
HWPOISON: check dirty flag to match against clean page
Currently page_action() does not check dirty flag to determine whether
the error page is "clean mlocked/unevictable LRU" page. This doesn't
cause any misjudgement because we do matching against "dirty
mlocked/unevictable LRU" just before the check. But in order to make
code consistent and/or to avoid potential regression, we had better
check dirty flag explicitly.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Suggested-by: Chen Gong <gong.chen@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index df0694c..ceb0c7f 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -785,10 +785,10 @@ static struct page_state { { sc|dirty, sc, "clean swapcache", me_swapcache_clean }, { mlock|dirty, mlock|dirty, "dirty mlocked LRU", me_pagecache_dirty }, - { mlock, mlock, "clean mlocked LRU", me_pagecache_clean }, + { mlock|dirty, mlock, "clean mlocked LRU", me_pagecache_clean }, { unevict|dirty, unevict|dirty, "dirty unevictable LRU", me_pagecache_dirty }, - { unevict, unevict, "clean unevictable LRU", me_pagecache_clean }, + { unevict|dirty, unevict, "clean unevictable LRU", me_pagecache_clean }, { lru|dirty, lru|dirty, "dirty LRU", me_pagecache_dirty }, { lru|dirty, lru, "clean LRU", me_pagecache_clean }, |
