From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>,
Fengguang Wu <fengguang.wu@intel.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Tony Luck <tony.luck@intel.com>,
gong.chen@linux.intel.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Wanpeng Li <liwanp@linux.vnet.ibm.com>
Subject: [PATCH v3 4/8] mm/hwpoison: replacing atomic_long_sub() with atomic_long_dec()
Date: Mon, 26 Aug 2013 09:18:47 +0800 [thread overview]
Message-ID: <1377479931-7430-4-git-send-email-liwanp@linux.vnet.ibm.com> (raw)
In-Reply-To: <1377479931-7430-1-git-send-email-liwanp@linux.vnet.ibm.com>
Repalce atomic_long_sub() with atomic_long_dec() since the page is
normal page instead of hugetlbfs page or thp.
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
---
mm/memory-failure.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index a6c4752..297965e 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1363,7 +1363,7 @@ int unpoison_memory(unsigned long pfn)
return 0;
}
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);
return 0;
}
--
1.8.1.2
--
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next prev parent reply other threads:[~2013-08-26 1:19 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-26 1:18 [PATCH v3 1/8] mm/hwpoison: fix lose PG_dirty flag for errors on mlocked pages Wanpeng Li
2013-08-26 1:18 ` [PATCH v3 2/8] mm/hwpoison: don't need to hold compound lock for hugetlbfs page Wanpeng Li
2013-08-26 1:18 ` [PATCH v3 3/8] mm/hwpoison: fix race against poison thp Wanpeng Li
2013-08-26 1:18 ` Wanpeng Li [this message]
2013-08-26 1:18 ` [PATCH v3 5/8] mm/hwpoison: don't set migration type twice to avoid hold heavy contend zone->lock Wanpeng Li
2013-08-26 1:18 ` [PATCH v3 6/8] mm/hwpoison: drop forward reference declarations __soft_offline_page() Wanpeng Li
2013-08-26 1:18 ` [PATCH v3 7/8] mm/hwpoison: add '#' to madvise_hwpoison Wanpeng Li
2013-08-26 1:18 ` [PATCH v3 8/8] mm/hwpoison: fix memory failure still hold reference count after unpoison empty zero page Wanpeng Li
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