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=-8.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 4582EC63697 for ; Sat, 28 Nov 2020 16:22:49 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C5535246C3 for ; Sat, 28 Nov 2020 16:22:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C5535246C3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=dm-devel-bounces@redhat.com Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-578-xBYSQKZ4N6G-1dRNu7MGyQ-1; Sat, 28 Nov 2020 11:22:45 -0500 X-MC-Unique: xBYSQKZ4N6G-1dRNu7MGyQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 3A8AB1E7ED; Sat, 28 Nov 2020 16:22:41 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1FC7963B8C; Sat, 28 Nov 2020 16:22:41 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id ED9CE1809CA5; Sat, 28 Nov 2020 16:22:40 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 0ASGMdxL023447 for ; Sat, 28 Nov 2020 11:22:39 -0500 Received: by smtp.corp.redhat.com (Postfix) id 1B5DC200BA9E; Sat, 28 Nov 2020 16:22:39 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast06.extmail.prod.ext.rdu2.redhat.com [10.11.55.22]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 16C43202717D for ; Sat, 28 Nov 2020 16:22:36 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9D79A185A794 for ; Sat, 28 Nov 2020 16:22:36 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-522-M9EVUTsQMJ-CRRduyEJkkw-1; Sat, 28 Nov 2020 11:22:34 -0500 X-MC-Unique: M9EVUTsQMJ-CRRduyEJkkw-1 Received: from [2001:4bb8:18c:1dd6:48f3:741a:602e:7fdd] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kj2sS-0000BF-3K; Sat, 28 Nov 2020 16:15:12 +0000 From: Christoph Hellwig To: Jens Axboe Date: Sat, 28 Nov 2020 17:14:25 +0100 Message-Id: <20201128161510.347752-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-loop: dm-devel@redhat.com Cc: linux-bcache@vger.kernel.org, Jan Kara , Mike Snitzer , linux-mm@kvack.org, Greg Kroah-Hartman , Jan Kara , Josef Bacik , Coly Li , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, linux-mtd@lists.infradead.org, Johannes Thumshirn , Tejun Heo Subject: [dm-devel] merge struct block_device and struct hd_struct v4 X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Jens, this series cleans up our main per-device node data structure by merging the block_device and hd_struct data structures that have the same scope, but different life times. The main effect (besides removing lots of code) is that instead of having two device sizes that need complex synchronization there is just one now. Note that this now includes the previous "misc cleanups" series as I had to fix up a thing in there with the changed patch ordering. The first patch already is in 5.10-rc, but not in for-5.11/block A git tree is available here: git://git.infradead.org/users/hch/block.git bdev-lookup Gitweb: http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/bdev-lookup Changes since v3: - extend hold time of bdev_lookup_sem - use igrab bdget to make bdget_disk and disk_part_iter* safe - fix some error handling labels - remove a superflous cast - various comment fixups Changes since v2: - keep a reference to the whole device bdev from each partition bdev to simplify blkdev_get - drop a stale commen in freeze_bdev - fix an incorrect hunk that ignored error in thaw_bdev - add back a missing call to mapping_set_gfp_mask - misc typo fixes, comment and commit log improvements - keep using a global lock to synchronize gendisk lookup - do not call ->open for blk-cgroup configuration updates - drop a zram cleanup patch Changes since v1: - spelling fixes - fix error unwinding in __alloc_disk_node - use bdev_is_partition in a few more places - don't send the RESIZE=1 uevent for hidden gendisks - rename __bdget_disk to disk_find_part - drop a bcache patch - some patch reordering - add more refactoring - use rcu protection to prevent racing with a disk going away in blkdev_get - split up some of the big patches into many small ones - clean up the freeze_bdev interface -- dm-devel mailing list dm-devel@redhat.com https://www.redhat.com/mailman/listinfo/dm-devel