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HWPOISON: change order of error_states[]'s elements 

error_states[] has two separate states "unevictable LRU page" and
"mlocked LRU page", and the former one has the higher priority now.  But
because of that the latter one is rarely chosen because pages with
PageMlocked highly likely have PG_unevictable set.  On the other hand,
PG_unevictable without PageMlocked is common for ramfs or SHM_LOCKed
shared memory, so reversing the priority of these two states helps us
clearly distinguish them.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Chen Gong <gong.chen@linux.intel.com>
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 2013-02-22 16:35:53 -08:00 committed by Linus Torvalds
parent 524fca1e73
commit 5f4b9fc5c1
1 changed files with 3 additions and 3 deletions
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6
mm/memory-failure.c
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@ -784,12 +784,12 @@ static struct page_state {
{ sc|dirty, sc|dirty, "dirty swapcache", me_swapcache_dirty },
{ sc|dirty, sc, "clean swapcache", me_swapcache_clean },
{ unevict|dirty, unevict|dirty, "dirty unevictable LRU", me_pagecache_dirty },
{ unevict, unevict, "clean unevictable LRU", me_pagecache_clean },
{ mlock|dirty, mlock|dirty, "dirty mlocked LRU", me_pagecache_dirty },
{ mlock, 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 },
{ lru|dirty, lru|dirty, "dirty LRU", me_pagecache_dirty },
{ lru|dirty, lru, "clean LRU", me_pagecache_clean },