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authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>2013-02-22 16:35:53 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-23 17:50:22 -0800
commit5f4b9fc5c1d3c8fc6037fa99d527ad3264dc0038 (patch)
tree89e8e291b5519927aa059b64f4fd6f9f3a2b4184 /mm/memory-failure.c
parent524fca1e7356f8f9f92c51ca52727187872fc5f5 (diff)
downloadlinux-5f4b9fc5c1d3c8fc6037fa99d527ad3264dc0038.tar.gz
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>
Diffstat (limited to 'mm/memory-failure.c')
-rw-r--r--mm/memory-failure.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 8f13b26a5b9..df0694c6ade 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -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 },