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authorWanpeng Li <wanpeng.li@hotmail.com>2015-08-14 15:34:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-08-14 15:56:32 -0700
commit036138080a4376e5f3e5d0cca8ac99084c5cf06e (patch)
tree2b879c67ee72c97696dc4611b59b959695e80c4d /ipc
parent4f32be677b124a49459e2603321c7a5605ceb9f8 (diff)
downloadlinux-036138080a4376e5f3e5d0cca8ac99084c5cf06e.tar.bz2
mm/hwpoison: fix fail isolate hugetlbfs page w/ refcount held
Hugetlbfs pages will get a refcount in get_any_page() or madvise_hwpoison() if soft offlining through madvise. The refcount which is held by the soft offline path should be released if we fail to isolate hugetlbfs pages. Fix it by reducing the refcount for both isolation success and failure. Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: <stable@vger.kernel.org> [3.9+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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