From nobody Tue Feb 10 02:49:59 2026 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 B877BC001DC for ; Sat, 8 Jul 2023 08:57:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230289AbjGHI5m (ORCPT ); Sat, 8 Jul 2023 04:57:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229926AbjGHI5f (ORCPT ); Sat, 8 Jul 2023 04:57:35 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D8A31FF0 for ; Sat, 8 Jul 2023 01:57:33 -0700 (PDT) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.55]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4QykfN4sfWz1FDfX; Sat, 8 Jul 2023 16:57:00 +0800 (CST) Received: from huawei.com (10.174.151.185) 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 15.1.2507.27; Sat, 8 Jul 2023 16:57:29 +0800 From: Miaohe Lin To: , CC: , , Subject: [PATCH 3/8] mm: memory-failure: Don't account hwpoison_filter() filtered pages Date: Sat, 8 Jul 2023 16:57:39 +0800 Message-ID: <20230708085744.3599311-4-linmiaohe@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20230708085744.3599311-1-linmiaohe@huawei.com> References: <20230708085744.3599311-1-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.174.151.185] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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 Content-Type: text/plain; charset="utf-8" mf_generic_kill_procs() will return -EOPNOTSUPP when hwpoison_filter() filtered dax page. In that case, action_result() isn't expected to be called to update mf_stats. This will results in inaccurate but benign memory failure handling statistics. Signed-off-by: Miaohe Lin Acked-by: Naoya Horiguchi --- mm/memory-failure.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/memory-failure.c b/mm/memory-failure.c index c155122e3c66..905758af70f3 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -2101,7 +2101,8 @@ static int memory_failure_dev_pagemap(unsigned long p= fn, int flags, out: /* drop pgmap ref acquired in caller */ put_dev_pagemap(pgmap); - action_result(pfn, MF_MSG_DAX, rc ? MF_FAILED : MF_RECOVERED); + if (rc !=3D -EOPNOTSUPP) + action_result(pfn, MF_MSG_DAX, rc ? MF_FAILED : MF_RECOVERED); return rc; } =20 --=20 2.33.0