HWPOISON: change order of error_states[]'s elements
authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Sat, 23 Feb 2013 00:35:53 +0000 (16:35 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sun, 24 Feb 2013 01:50:22 +0000 (17:50 -0800)
commit5f4b9fc5c1d3c8fc6037fa99d527ad3264dc0038
tree89e8e291b5519927aa059b64f4fd6f9f3a2b4184
parent524fca1e7356f8f9f92c51ca52727187872fc5f5
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>
mm/memory-failure.c