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authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>2017-07-10 15:47:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-10 16:32:30 -0700
commitb37ff71cc626a0c1b5e098ff9a0b723815f6aaeb (patch)
treec84133dc64f7889a5ecfc13ada7d8ff41255e75c /mm/migrate.c
parent09612fa6532a838e159d3b3aacfa8641698a89d2 (diff)
mm: hwpoison: change PageHWPoison behavior on hugetlb pages
We'd like to narrow down the error region in memory error on hugetlb pages. However, currently we set PageHWPoison flags on all subpages in the error hugepage and add # of subpages to num_hwpoison_pages, which doesn't fit our purpose. So this patch changes the behavior and we only set PageHWPoison on the head page then increase num_hwpoison_pages only by 1. This is a preparation for narrow-down part which comes in later patches. Link: http://lkml.kernel.org/r/1496305019-5493-4-git-send-email-n-horiguchi@ah.jp.nec.com Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/migrate.c')
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