Commit e3986295 authored by Naoya Horiguchi's avatar Naoya Horiguchi Committed by Linus Torvalds
Browse files

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: default avatarNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Suggested-by: default avatarChen 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 546ae2d2

mm/memory-failure.c

+2 −2
Original line number Diff line number Diff line
@@ -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 },

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