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authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>2013-04-29 15:06:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:28 -0700
commite39862958d54e4cccec01f5cdef3ae298e7386b8 (patch)
tree17affc01548272abd32cc52e16a90c5a1a6442a5 /mm/memory-failure.c
parent546ae2d2f717230b2ff423295f8d6dc489a878e8 (diff)
downloadlinux-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.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index df0694c6ade..ceb0c7f1932 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 },