From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>,
Fengguang Wu <fengguang.wu@intel.com>,
Tony Luck <tony.luck@intel.com>,
gong.chen@linux.intel.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/7] mm/hwpoison: replacing atomic_long_sub() with atomic_long_dec()
Date: Fri, 23 Aug 2013 10:35:12 -0400 [thread overview]
Message-ID: <1377268512-9c5ohh48-mutt-n-horiguchi@ah.jp.nec.com> (raw)
In-Reply-To: <1377253841-17620-4-git-send-email-liwanp@linux.vnet.ibm.com>
On Fri, Aug 23, 2013 at 06:30:38PM +0800, Wanpeng Li wrote:
> Repalce 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>
> ---
> 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:[~2013-08-23 14:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-23 10:30 [PATCH v2 1/7] mm/hwpoison: fix lose PG_dirty flag for errors on mlocked pages Wanpeng Li
2013-08-23 10:30 ` [PATCH v2 2/7] mm/hwpoison: don't need to hold compound lock for hugetlbfs page Wanpeng Li
2013-08-23 10:30 ` [PATCH v2 3/7] mm/hwpoison: fix race against poison thp Wanpeng Li
2013-08-23 10:30 ` [PATCH v2 4/7] mm/hwpoison: replacing atomic_long_sub() with atomic_long_dec() Wanpeng Li
2013-08-23 14:35 ` Naoya Horiguchi [this message]
2013-08-23 10:30 ` [PATCH v2 5/7] mm/hwpoison: don't set migration type twice to avoid hold heavy contend zone->lock Wanpeng Li
2013-08-23 14:36 ` Naoya Horiguchi
2013-08-25 23:23 ` Wanpeng Li
2013-08-25 23:23 ` Wanpeng Li
2013-08-23 10:30 ` [PATCH v2 6/7] mm/hwpoison: drop forward reference declarations __soft_offline_page() Wanpeng Li
2013-08-23 10:30 ` [PATCH v2 7/7] mm/hwpoison: add '#' to madvise_hwpoison Wanpeng Li
2013-08-23 14:38 ` Naoya Horiguchi
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