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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 93DA2C5519F for ; Wed, 25 Nov 2020 06:08:06 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D49FE2075A for ; Wed, 25 Nov 2020 06:08:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D49FE2075A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C70376B006E; Wed, 25 Nov 2020 01:08:04 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id C20356B0070; Wed, 25 Nov 2020 01:08:04 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B0E756B0071; Wed, 25 Nov 2020 01:08:04 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0030.hostedemail.com [216.40.44.30]) by kanga.kvack.org (Postfix) with ESMTP id 9C6766B006E for ; Wed, 25 Nov 2020 01:08:04 -0500 (EST) Received: from smtpin14.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 5E446181AEF15 for ; Wed, 25 Nov 2020 06:08:04 +0000 (UTC) X-FDA: 77521910088.14.cat18_2907d6d27374 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin14.hostedemail.com (Postfix) with ESMTP id 4233A18229818 for ; Wed, 25 Nov 2020 06:08:04 +0000 (UTC) X-HE-Tag: cat18_2907d6d27374 X-Filterd-Recvd-Size: 2650 Received: from szxga06-in.huawei.com (szxga06-in.huawei.com [45.249.212.32]) by imf43.hostedemail.com (Postfix) with ESMTP for ; Wed, 25 Nov 2020 06:08:03 +0000 (UTC) Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4Cgr5m3R7Vzhh8Q; Wed, 25 Nov 2020 14:07:40 +0800 (CST) Received: from [10.136.114.67] (10.136.114.67) by smtp.huawei.com (10.3.19.212) with Microsoft SMTP Server (TLS) id 14.3.487.0; Wed, 25 Nov 2020 14:07:42 +0800 Subject: Re: [PATCH 04/45] fs: simplify freeze_bdev/thaw_bdev To: Christoph Hellwig , Jens Axboe CC: Tejun Heo , Josef Bacik , "Konrad Rzeszutek Wilk" , Coly Li , "Mike Snitzer" , Greg Kroah-Hartman , Jan Kara , Johannes Thumshirn , , Richard Weinberger , Jan Kara , , , , , , References: <20201124132751.3747337-1-hch@lst.de> <20201124132751.3747337-5-hch@lst.de> From: Chao Yu Message-ID: <4ae2d8ca-e858-e5df-67ef-d14852978976@huawei.com> Date: Wed, 25 Nov 2020 14:07:41 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20201124132751.3747337-5-hch@lst.de> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.136.114.67] X-CFilter-Loop: Reflected 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: On 2020/11/24 21:27, Christoph Hellwig wrote: > Store the frozen superblock in struct block_device to avoid the awkward > interface that can return a sb only used a cookie, an ERR_PTR or NULL. > > Signed-off-by: Christoph Hellwig > --- > drivers/md/dm-core.h | 5 ----- > drivers/md/dm.c | 20 ++++++-------------- > fs/block_dev.c | 39 ++++++++++++++++----------------------- > fs/buffer.c | 2 +- > fs/ext4/ioctl.c | 2 +- > fs/f2fs/file.c | 14 +++++--------- For f2fs part, Acked-by: Chao Yu Thanks, > fs/xfs/xfs_fsops.c | 7 ++----- > include/linux/blk_types.h | 1 + > include/linux/blkdev.h | 4 ++-- > 9 files changed, 34 insertions(+), 60 deletions(-)