From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>, <naoya.horiguchi@nec.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<linmiaohe@huawei.com>
Subject: [PATCH 1/6] mm, hwpoison: use ClearPageHWPoison() in memory_failure()
Date: Tue, 30 Aug 2022 20:35:59 +0800 [thread overview]
Message-ID: <20220830123604.25763-2-linmiaohe@huawei.com> (raw)
In-Reply-To: <20220830123604.25763-1-linmiaohe@huawei.com>
Use ClearPageHWPoison() instead of TestClearPageHWPoison() to clear page
hwpoison flags to avoid unneeded full memory barrier overhead.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.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 ebf16d177ee5..a923a6dde871 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -2128,7 +2128,7 @@ int memory_failure(unsigned long pfn, int flags)
page_flags = p->flags;
if (hwpoison_filter(p)) {
- TestClearPageHWPoison(p);
+ ClearPageHWPoison(p);
unlock_page(p);
put_page(p);
res = -EOPNOTSUPP;
--
2.23.0
next prev parent reply other threads:[~2022-08-30 12:36 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-30 12:35 [PATCH 0/6] A few cleanup patches for memory-failure Miaohe Lin
2022-08-30 12:35 ` Miaohe Lin [this message]
2022-09-05 5:23 ` [PATCH 1/6] mm, hwpoison: use ClearPageHWPoison() in memory_failure() HORIGUCHI NAOYA(堀口 直也)
2022-08-30 12:36 ` [PATCH 2/6] mm, hwpoison: use __PageMovable() to detect non-lru movable pages Miaohe Lin
2022-09-05 5:22 ` HORIGUCHI NAOYA(堀口 直也)
2022-09-05 6:53 ` Miaohe Lin
2022-09-05 7:15 ` HORIGUCHI NAOYA(堀口 直也)
2022-09-05 7:29 ` Miaohe Lin
2022-09-05 21:53 ` Andrew Morton
2022-09-06 1:07 ` Miaohe Lin
2022-08-30 12:36 ` [PATCH 3/6] mm, hwpoison: use num_poisoned_pages_sub() to decrease num_poisoned_pages Miaohe Lin
2022-09-05 5:24 ` HORIGUCHI NAOYA(堀口 直也)
2022-08-30 12:36 ` [PATCH 4/6] mm, hwpoison: avoid unneeded page_mapped_in_vma() overhead in collect_procs_anon() Miaohe Lin
2022-09-05 5:24 ` HORIGUCHI NAOYA(堀口 直也)
2022-08-30 12:36 ` [PATCH 5/6] mm, hwpoison: check PageTable() explicitly in hwpoison_user_mappings() Miaohe Lin
2022-09-05 5:25 ` HORIGUCHI NAOYA(堀口 直也)
2022-08-30 12:36 ` [PATCH 6/6] mm, hwpoison: cleanup some obsolete comments Miaohe Lin
2022-09-05 5:25 ` HORIGUCHI NAOYA(堀口 直也)
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