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 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=unavailable 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 BD7BFC4361B for ; Tue, 15 Dec 2020 12:28:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 86866224D2 for ; Tue, 15 Dec 2020 12:28:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728774AbgLOMQF (ORCPT ); Tue, 15 Dec 2020 07:16:05 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:22826 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728117AbgLOMPZ (ORCPT ); Tue, 15 Dec 2020 07:15:25 -0500 X-IronPort-AV: E=Sophos;i="5.78,420,1599494400"; d="scan'208";a="102420179" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 15 Dec 2020 20:14:36 +0800 Received: from G08CNEXMBPEKD06.g08.fujitsu.local (unknown [10.167.33.206]) by cn.fujitsu.com (Postfix) with ESMTP id DAC2B4CE546D; Tue, 15 Dec 2020 20:14:32 +0800 (CST) Received: from G08CNEXCHPEKD05.g08.fujitsu.local (10.167.33.203) by G08CNEXMBPEKD06.g08.fujitsu.local (10.167.33.206) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 15 Dec 2020 20:14:31 +0800 Received: from localhost.localdomain (10.167.225.141) by G08CNEXCHPEKD05.g08.fujitsu.local (10.167.33.209) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 15 Dec 2020 20:14:31 +0800 From: Shiyang Ruan To: , , , CC: , , , , , , , , , Subject: [RFC PATCH v3 3/9] fs: Introduce ->corrupted_range() for superblock Date: Tue, 15 Dec 2020 20:14:08 +0800 Message-ID: <20201215121414.253660-4-ruansy.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201215121414.253660-1-ruansy.fnst@cn.fujitsu.com> References: <20201215121414.253660-1-ruansy.fnst@cn.fujitsu.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-yoursite-MailScanner-ID: DAC2B4CE546D.ACED8 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: ruansy.fnst@cn.fujitsu.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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); }; /* -- 2.29.2