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mm/hwpoison: replace atomic_long_sub() with atomic_long_dec()

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Replace atomic_long_sub() with atomic_long_dec() since the page is normal
page instead of hugetlbfs page or thp.

Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Wanpeng Li 2013-09-11 14:22:54 -07:00 committed by Linus Torvalds
parent 0cea3fdc41
commit dd9538a597
1 changed files with 1 additions and 1 deletions
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2
mm/memory-failure.c
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@ -1366,7 +1366,7 @@ int unpoison_memory(unsigned long pfn)
return 0; return 0;
} }
if (TestClearPageHWPoison(p)) if (TestClearPageHWPoison(p))
atomic_long_sub(nr_pages, &num_poisoned_pages); atomic_long_dec(&num_poisoned_pages);
pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn); pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn);
return 0; return 0;
} }