From patchwork Wed Dec 30 16:55:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ruan Shiyang X-Patchwork-Id: 11993457 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 939CEC433E6 for ; Wed, 30 Dec 2020 16:58:54 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2D6B821919 for ; Wed, 30 Dec 2020 16:58:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2D6B821919 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=cn.fujitsu.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BCED28D008B; Wed, 30 Dec 2020 11:58:53 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id BA4D18D0089; Wed, 30 Dec 2020 11:58:53 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AE2158D008B; Wed, 30 Dec 2020 11:58:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0232.hostedemail.com [216.40.44.232]) by kanga.kvack.org (Postfix) with ESMTP id 97E968D0089 for ; Wed, 30 Dec 2020 11:58:53 -0500 (EST) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 5111882499B9 for ; Wed, 30 Dec 2020 16:58:53 +0000 (UTC) X-FDA: 77650558146.02.dog26_20131ca274a6 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin02.hostedemail.com (Postfix) with ESMTP id 308DF10097AA0 for ; Wed, 30 Dec 2020 16:58:53 +0000 (UTC) X-HE-Tag: dog26_20131ca274a6 X-Filterd-Recvd-Size: 2814 Received: from heian.cn.fujitsu.com (mail.cn.fujitsu.com [183.91.158.132]) by imf04.hostedemail.com (Postfix) with ESMTP for ; Wed, 30 Dec 2020 16:58:48 +0000 (UTC) X-IronPort-AV: E=Sophos;i="5.78,461,1599494400"; d="scan'208";a="103085828" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 31 Dec 2020 00:58:39 +0800 Received: from G08CNEXMBPEKD04.g08.fujitsu.local (unknown [10.167.33.201]) by cn.fujitsu.com (Postfix) with ESMTP id 801344CE6020; Thu, 31 Dec 2020 00:58:36 +0800 (CST) Received: from G08CNEXCHPEKD04.g08.fujitsu.local (10.167.33.200) by G08CNEXMBPEKD04.g08.fujitsu.local (10.167.33.201) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 31 Dec 2020 00:58:36 +0800 Received: from irides.mr (10.167.225.141) by G08CNEXCHPEKD04.g08.fujitsu.local (10.167.33.209) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 31 Dec 2020 00:58:35 +0800 From: Shiyang Ruan To: , , , CC: , , , , , , , , , Subject: [PATCH 03/10] fs: Introduce ->corrupted_range() for superblock Date: Thu, 31 Dec 2020 00:55:54 +0800 Message-ID: <20201230165601.845024-4-ruansy.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201230165601.845024-1-ruansy.fnst@cn.fujitsu.com> References: <20201230165601.845024-1-ruansy.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-yoursite-MailScanner-ID: 801344CE6020.A8417 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: ruansy.fnst@cn.fujitsu.com X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Memory failure occurs in fsdax mode will finally be handled in filesystem. We introduce this interface to find out files or metadata affected by the corrupted range, and try to recover the corrupted data if possiable. Signed-off-by: Shiyang Ruan --- include/linux/fs.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/fs.h b/include/linux/fs.h index 8667d0cdc71e..282e2139b23e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1965,6 +1965,8 @@ struct super_operations { struct shrink_control *); long (*free_cached_objects)(struct super_block *, struct shrink_control *); + int (*corrupted_range)(struct super_block *sb, struct block_device *bdev, + loff_t offset, size_t len, void *data); }; /*