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Fri, 11 Aug 2023 13:05:04 +0200 (CEST) From: Jan Kara To: Date: Fri, 11 Aug 2023 13:04:31 +0200 Message-Id: <20230810171429.31759-1-jack@suse.cz> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3218; i=jack@suse.cz; h=from:subject:message-id; bh=8um6o7br1koHMcykRc7ml18Y2BSCm69vwpPmgjRXxkk=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBk1hW86qklK68Z0G139b8b61UzO/oV2Y6qvJg1uvDC +JKlEZuJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCZNYVvAAKCRCcnaoHP2RA2epoB/ 9Sgdf//aomv8tBKGEg1kRzItWS+CXbN/cjy5B6uL3IUWhEY6vxFg7DsN+znMmPFPOp7X1w/e2PExiA dGNvKiX2BNUyl6ZLFstCZUiXyzlig8pnDHrmrN4lbx3SIS3BHdNJ8igPArMWVDYXlZuosexzFn3fIW ELsTpVpNLZdp6BAxZg4925E1qscyN11eFDJecvW+IrpMA1nHR12Y/AX4zqXWcBT8MPUEiJD1Cnfxfa Leji+h3vOG0k2IQAyfN6R1cj/0POs0zJWvSVK9bZM8IYFIOHr+jpYHi0KEVh62q6NLoQxbMBVEzn9K JsmkBplP7UobjvtEWvfH0EwVENii9z X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C 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 3.1 on 10.11.54.2 Subject: [dm-devel] [PATCH v2 0/29] block: Make blkdev_get_by_*() return handle X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dave Kleikamp , jfs-discussion@lists.sourceforge.net, Jan Kara , "Darrick J. Wong" , linux-nvme@lists.infradead.org, Joseph Qi , dm-devel@redhat.com, target-devel@vger.kernel.org, linux-mtd@lists.infradead.org, Jack Wang , Alasdair Kergon , drbd-dev@lists.linbit.com, linux-s390@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-scsi@vger.kernel.org, Sergey Senozhatsky , Christoph Hellwig , xen-devel@lists.xenproject.org, Gao Xiang , Christian Borntraeger , Kent Overstreet , Sven Schnelle , linux-pm@vger.kernel.org, Mike Snitzer , Chao Yu , Joern Engel , reiserfs-devel@vger.kernel.org, linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, David Sterba , Jaegeuk Kim , Trond Myklebust , linux-raid@vger.kernel.org, linux-nfs@vger.kernel.org, linux-ext4@vger.kernel.org, Ted Tso , linux-mm@kvack.org, Song Liu , linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, Minchan Kim , ocfs2-devel@oss.oracle.com, Anna Schumaker , "Md. Haris Iqbal" , Andrew Morton , linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org Errors-To: dm-devel-bounces@redhat.com Sender: "dm-devel" X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: suse.cz Hello, this is a v2 of the patch series which implements the idea of blkdev_get_by_*() calls returning bdev_handle which is then passed to blkdev_put() [1]. This makes the get and put calls for bdevs more obviously matching and allows us to propagate context from get to put without having to modify all the users (again!). In particular I need to propagate used open flags to blkdev_put() to be able count writeable opens and add support for blocking writes to mounted block devices. I'll send that series separately. The series is based on Christian's vfs tree as of yesterday as there is quite some overlap. Patches have passed some reasonable testing - I've tested block changes, md, dm, bcache, xfs, btrfs, ext4, swap. This obviously doesn't cover everything so I'd like to ask respective maintainers to review / test their changes. Thanks! I've pushed out the full branch to: git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git bdev_handle to ease review / testing. Changes since v1: * Rebased on top of current vfs tree * Renamed final functions to bdev_open_by_*() and bdev_release() * Fixed detection of exclusive open in blkdev_ioctl() and blkdev_fallocate() * Fixed swap conversion to properly reinitialize swap_info->bdev_handle * Fixed xfs conversion to not oops with rtdev without logdev * Couple other minor fixups Honza [1] https://lore.kernel.org/all/ZJGNsVDhZx0Xgs2H@infradead.org CC: Alasdair Kergon CC: Andrew Morton CC: Anna Schumaker CC: Chao Yu CC: Christian Borntraeger CC: Coly Li CC: Dave Kleikamp CC: David Sterba CC: dm-devel@redhat.com CC: drbd-dev@lists.linbit.com CC: Gao Xiang CC: Jack Wang CC: Jaegeuk Kim CC: jfs-discussion@lists.sourceforge.net CC: Joern Engel CC: Joseph Qi CC: Kent Overstreet CC: linux-bcache@vger.kernel.org CC: linux-btrfs@vger.kernel.org CC: linux-erofs@lists.ozlabs.org CC: CC: linux-f2fs-devel@lists.sourceforge.net CC: linux-mm@kvack.org CC: linux-mtd@lists.infradead.org CC: linux-nfs@vger.kernel.org CC: linux-nilfs@vger.kernel.org CC: linux-nvme@lists.infradead.org CC: linux-pm@vger.kernel.org CC: linux-raid@vger.kernel.org CC: linux-s390@vger.kernel.org CC: linux-scsi@vger.kernel.org CC: linux-xfs@vger.kernel.org CC: "Md. Haris Iqbal" CC: Mike Snitzer CC: Minchan Kim CC: ocfs2-devel@oss.oracle.com CC: reiserfs-devel@vger.kernel.org CC: Sergey Senozhatsky CC: Song Liu CC: Sven Schnelle CC: target-devel@vger.kernel.org CC: Ted Tso CC: Trond Myklebust CC: xen-devel@lists.xenproject.org Previous versions: Link: http://lore.kernel.org/r/20230629165206.383-1-jack@suse.cz # v1 Acked-by: Christoph Hellwig --- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel