From patchwork Mon Feb 8 10:55:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ruan Shiyang X-Patchwork-Id: 12074817 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,URIBL_BLOCKED,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 D2D86C433E9 for ; Mon, 8 Feb 2021 10:55:44 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6C6F964E7D for ; Mon, 8 Feb 2021 10:55:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C6F964E7D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=cn.fujitsu.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 1DD38100EB32A; Mon, 8 Feb 2021 02:55:44 -0800 (PST) Received-SPF: None (mailfrom) identity=mailfrom; client-ip=183.91.158.132; helo=heian.cn.fujitsu.com; envelope-from=ruansy.fnst@cn.fujitsu.com; receiver= Received: from heian.cn.fujitsu.com (mail.cn.fujitsu.com [183.91.158.132]) by ml01.01.org (Postfix) with ESMTP id 8EFA7100EB321 for ; Mon, 8 Feb 2021 02:55:41 -0800 (PST) X-IronPort-AV: E=Sophos;i="5.81,161,1610380800"; d="scan'208";a="104328065" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 08 Feb 2021 18:55:40 +0800 Received: from G08CNEXMBPEKD04.g08.fujitsu.local (unknown [10.167.33.201]) by cn.fujitsu.com (Postfix) with ESMTP id 0EE534CE6F80; Mon, 8 Feb 2021 18:55:35 +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; Mon, 8 Feb 2021 18:55:37 +0800 Received: from irides.mr.mr.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; Mon, 8 Feb 2021 18:55:36 +0800 From: Shiyang Ruan To: , , , , , Subject: [PATCH v3 02/11] blk: Introduce ->corrupted_range() for block device Date: Mon, 8 Feb 2021 18:55:21 +0800 Message-ID: <20210208105530.3072869-3-ruansy.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210208105530.3072869-1-ruansy.fnst@cn.fujitsu.com> References: <20210208105530.3072869-1-ruansy.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-yoursite-MailScanner-ID: 0EE534CE6F80.A1671 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: ruansy.fnst@cn.fujitsu.com Message-ID-Hash: C7KY6U2LHXE4DEJVU22TD27DXW2UXN4Z X-Message-ID-Hash: C7KY6U2LHXE4DEJVU22TD27DXW2UXN4Z X-MailFrom: ruansy.fnst@cn.fujitsu.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header CC: darrick.wong@oracle.com, david@fromorbit.com, hch@lst.de, agk@redhat.com, snitzer@redhat.com, rgoldwyn@suse.de, qi.fuli@fujitsu.com, y-goto@fujitsu.com X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: In fsdax mode, the memory failure happens on block device. So, it is needed to introduce an interface for block devices. Each kind of block device can handle the memory failure in ther own ways. Signed-off-by: Shiyang Ruan --- include/linux/blkdev.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index f94ee3089e01..e0f5585aa06f 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1867,6 +1867,8 @@ struct block_device_operations { int (*report_zones)(struct gendisk *, sector_t sector, unsigned int nr_zones, report_zones_cb cb, void *data); char *(*devnode)(struct gendisk *disk, umode_t *mode); + int (*corrupted_range)(struct gendisk *disk, struct block_device *bdev, + loff_t offset, size_t len, void *data); struct module *owner; const struct pr_ops *pr_ops; };