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HWPOISON: avoid grabbing the page count multiple times during madvise injection
authorWu Fengguang <fengguang.wu@intel.com>
Wed, 16 Dec 2009 11:19:57 +0000 (12:19 +0100)
committerAndi Kleen <ak@linux.intel.com>
Wed, 16 Dec 2009 11:19:57 +0000 (12:19 +0100)
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>

No differences found
Linux kernel - Deliverables
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