HWPOISON: avoid grabbing the page count multiple times during madvise injection

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If page is double referenced in madvise_hwpoison() and __memory_failure(),
remove_mapping() will fail because it expects page_count=2. Fix it by
not grabbing extra page count in __memory_failure().

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>

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Wu Fengguang 2009-12-16 12:19:57 +01:00 • committed by Andi Kleen

parent a7560fc80f

commit bd1ce5f91f

2 changed files with 4 additions and 5 deletions

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1

mm/madvise.c

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8

mm/memory-failure.c

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