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HWPOISON: check dirty flag to match against clean page

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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>
This commit is contained in:
Naoya Horiguchi 2013-04-29 15:06:08 -07:00 committed by Linus Torvalds
parent 546ae2d2f7
commit e39862958d
1 changed files with 2 additions and 2 deletions
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4
mm/memory-failure.c
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@ -785,10 +785,10 @@ static struct page_state {
{ sc|dirty, sc, "clean swapcache", me_swapcache_clean }, { sc|dirty, sc, "clean swapcache", me_swapcache_clean },
{ mlock|dirty, mlock|dirty, "dirty mlocked LRU", me_pagecache_dirty }, { 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|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|dirty, "dirty LRU", me_pagecache_dirty },
{ lru|dirty, lru, "clean LRU", me_pagecache_clean }, { lru|dirty, lru, "clean LRU", me_pagecache_clean },