From patchwork Mon Jan 25 22:55:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ruan Shiyang X-Patchwork-Id: 12044657 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 11F90C43381 for ; Mon, 25 Jan 2021 22:55:41 +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 C0BFB2220F for ; Mon, 25 Jan 2021 22:55:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C0BFB2220F 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 BE5D3100EBBDA; Mon, 25 Jan 2021 14:55:39 -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 5604E100ED498 for ; Mon, 25 Jan 2021 14:55:36 -0800 (PST) X-IronPort-AV: E=Sophos;i="5.79,374,1602518400"; d="scan'208";a="103820570" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 26 Jan 2021 06:55:32 +0800 Received: from G08CNEXMBPEKD05.g08.fujitsu.local (unknown [10.167.33.204]) by cn.fujitsu.com (Postfix) with ESMTP id BB90D4CE678B; Tue, 26 Jan 2021 06:55:32 +0800 (CST) Received: from G08CNEXCHPEKD04.g08.fujitsu.local (10.167.33.200) by G08CNEXMBPEKD05.g08.fujitsu.local (10.167.33.204) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 26 Jan 2021 06:55:33 +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; Tue, 26 Jan 2021 06:55:31 +0800 From: Shiyang Ruan To: , , , Subject: [PATCH v2 02/10] blk: Introduce ->corrupted_range() for block device Date: Tue, 26 Jan 2021 06:55:18 +0800 Message-ID: <20210125225526.1048877-3-ruansy.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210125225526.1048877-1-ruansy.fnst@cn.fujitsu.com> References: <20210125225526.1048877-1-ruansy.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-yoursite-MailScanner-ID: BB90D4CE678B.AC883 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: ruansy.fnst@cn.fujitsu.com Message-ID-Hash: K4KVZAYQH67VENQCDINRJR4M6CHQSLYX X-Message-ID-Hash: K4KVZAYQH67VENQCDINRJR4M6CHQSLYX 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: linux-fsdevel@vger.kernel.org, linux-raid@vger.kernel.org, darrick.wong@oracle.com, david@fromorbit.com, hch@lst.de, song@kernel.org, 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; };