From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6875ECAAA1 for ; Tue, 30 Aug 2022 12:36:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229723AbiH3Mgn (ORCPT ); Tue, 30 Aug 2022 08:36:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229523AbiH3Mgh (ORCPT ); Tue, 30 Aug 2022 08:36:37 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4100FD86E4 for ; Tue, 30 Aug 2022 05:36:36 -0700 (PDT) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4MH6Fh0mcwzHnV7; Tue, 30 Aug 2022 20:34:48 +0800 (CST) Received: from huawei.com (10.175.124.27) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 30 Aug 2022 20:36:34 +0800 From: Miaohe Lin To: , CC: , , Subject: [PATCH 1/6] mm, hwpoison: use ClearPageHWPoison() in memory_failure() Date: Tue, 30 Aug 2022 20:35:59 +0800 Message-ID: <20220830123604.25763-2-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20220830123604.25763-1-linmiaohe@huawei.com> References: <20220830123604.25763-1-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use ClearPageHWPoison() instead of TestClearPageHWPoison() to clear page hwpoison flags to avoid unneeded full memory barrier overhead. Signed-off-by: Miaohe Lin --- 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