tree dac06218e6a4de27c20a63be1845a9a6be400373
parent 8c4894c6bc790d0e31e072202939ac6747bbe7ac
author Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> 1355349150 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1355362715 -0800

hwpoison, hugetlbfs: fix RSS-counter warning

Memory error handling on hugepages can break a RSS counter, which emits a
message like "Bad rss-counter state mm:ffff88040abecac0 idx:1 val:-1".
This is because PageAnon returns true for hugepage (this behavior is
necessary for reverse mapping to work on hugetlbfs).

[akpm@linux-foundation.org: clean up code layout]
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi.kleen@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>