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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,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 99F4EC64E8A for ; Tue, 24 Nov 2020 13:28:36 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 15406206F9 for ; Tue, 24 Nov 2020 13:28:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="YcqovzdC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 15406206F9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 845616B00D9; Tue, 24 Nov 2020 08:28:31 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 7803B6B00D8; Tue, 24 Nov 2020 08:28:31 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3A2026B00D4; Tue, 24 Nov 2020 08:28:31 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 16AEE6B00D4 for ; Tue, 24 Nov 2020 08:28:31 -0500 (EST) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id CC2468249980 for ; Tue, 24 Nov 2020 13:28:30 +0000 (UTC) X-FDA: 77519391180.09.pigs53_030305b2736e Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin09.hostedemail.com (Postfix) with ESMTP id B6ED8180AD802 for ; Tue, 24 Nov 2020 13:28:30 +0000 (UTC) X-HE-Tag: pigs53_030305b2736e X-Filterd-Recvd-Size: 7156 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf25.hostedemail.com (Postfix) with ESMTP for ; Tue, 24 Nov 2020 13:28:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=hzV3z6SMaqyfIauoWZXz79MWtSUwimkTva+cu+wYxlA=; b=YcqovzdCTe1S4oEOtkiwBB1Lva tbtWR9C+DovWiWZoNJPHK9RQrYZjKUM7Drp1hnFw1GTX1Jvk04Hd3trxzQ+fyoxsP1futR8jAHh7G m++vI6ur7xxBWeJPKrJNK5QVX7l3+UeM6AjbiAjRATlrWkYizakQMYaATUwBbYrcERkSINRrED8sM txPsKX3pPj/UYI560klmFpFYMcMloF+t/eXLNLUVVvoEw3eCXzSegwCuUVDPpT8EfzdIKSLiqbIKa lxgMy3k+JWNbKkmnFS165gUjPgzeD07g2h5F4z1oEdlv0ay94Qn86TlwxjevvUAt6v+K6LwpveQ2I DtDCjJVg==; Received: from [2001:4bb8:180:5443:c70:4a89:bc61:3] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1khYML-0006U2-TO; Tue, 24 Nov 2020 13:27:54 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Tejun Heo , Josef Bacik , Konrad Rzeszutek Wilk , Coly Li , Mike Snitzer , Greg Kroah-Hartman , Jan Kara , Johannes Thumshirn , dm-devel@redhat.com, Richard Weinberger , Jan Kara , linux-block@vger.kernel.org, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: merge struct block_device and struct hd_struct v2 Date: Tue, 24 Nov 2020 14:27:06 +0100 Message-Id: <20201124132751.3747337-1-hch@lst.de> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Content-Transfer-Encoding: quoted-printable 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: 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 v1: - spelling fixes - fix error unwinding in __alloc_disk_node - use bdev_is_partition in a few more places - don't send the RESIZE=3D1 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 Diffstat: block/bio.c | 6=20 block/blk-cgroup.c | 50 - block/blk-core.c | 68 +- block/blk-flush.c | 2=20 block/blk-iocost.c | 36 - block/blk-lib.c | 2=20 block/blk-merge.c | 2=20 block/blk-mq.c | 9=20 block/blk-mq.h | 7=20 block/blk.h | 84 --- block/genhd.c | 467 ++++------------- block/ioctl.c | 14=20 block/partitions/core.c | 252 +++------ drivers/block/drbd/drbd_receiver.c | 2=20 drivers/block/drbd/drbd_worker.c | 3=20 drivers/block/loop.c | 24=20 drivers/block/mtip32xx/mtip32xx.c | 15=20 drivers/block/mtip32xx/mtip32xx.h | 2=20 drivers/block/nbd.c | 6=20 drivers/block/xen-blkback/common.h | 4=20 drivers/block/xen-blkfront.c | 20=20 drivers/block/zram/zram_drv.c | 87 --- drivers/block/zram/zram_drv.h | 1=20 drivers/md/bcache/request.c | 4=20 drivers/md/bcache/super.c | 29 - drivers/md/dm-core.h | 7=20 drivers/md/dm-table.c | 9=20 drivers/md/dm.c | 45 - drivers/md/md.c | 8=20 drivers/mtd/mtdsuper.c | 17=20 drivers/nvme/target/admin-cmd.c | 20=20 drivers/s390/block/dasd.c | 8=20 drivers/s390/block/dasd_ioctl.c | 9=20 drivers/scsi/scsicam.c | 2=20 drivers/target/target_core_file.c | 6=20 drivers/target/target_core_pscsi.c | 7=20 drivers/usb/gadget/function/storage_common.c | 8=20 fs/block_dev.c | 730 +++++++++-----------= ------- fs/btrfs/sysfs.c | 15=20 fs/btrfs/volumes.c | 13=20 fs/buffer.c | 2=20 fs/ext4/ioctl.c | 2=20 fs/ext4/super.c | 18=20 fs/ext4/sysfs.c | 10=20 fs/f2fs/checkpoint.c | 5=20 fs/f2fs/f2fs.h | 2=20 fs/f2fs/file.c | 14=20 fs/f2fs/super.c | 8=20 fs/f2fs/sysfs.c | 9=20 fs/inode.c | 3=20 fs/internal.h | 7=20 fs/io_uring.c | 10=20 fs/pipe.c | 5=20 fs/pstore/blk.c | 2=20 fs/quota/quota.c | 40 + fs/statfs.c | 2=20 fs/super.c | 86 --- fs/xfs/xfs_fsops.c | 7=20 include/linux/blk-cgroup.h | 4=20 include/linux/blk_types.h | 24=20 include/linux/blkdev.h | 27=20 include/linux/fs.h | 5=20 include/linux/genhd.h | 110 ---- include/linux/part_stat.h | 45 - init/do_mounts.c | 271 ++++------ kernel/trace/blktrace.c | 54 - mm/filemap.c | 13=20 67 files changed, 957 insertions(+), 1928 deletions(-)