From: Jan Kara <jack-AlSwsSmVLrQ@public.gmane.org>
To: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Dave Kleikamp <shaggy-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
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re
Subject: [PATCH v2 0/29] block: Make blkdev_get_by_*() return handle
Date: Fri, 11 Aug 2023 13:04:31 +0200 [thread overview]
Message-ID: <20230810171429.31759-1-jack@suse.cz> (raw)
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-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org
CC: Alasdair Kergon <agk-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
CC: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
CC: Anna Schumaker <anna-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: Chao Yu <chao-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: Christian Borntraeger <borntraeger-tEXmvtCZX7AybS5Ee8rs3A@public.gmane.org>
CC: Coly Li <colyli-l3A5Bk7waGM@public.gmane.org
CC: "Darrick J. Wong" <djwong-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: Dave Kleikamp <shaggy-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: David Sterba <dsterba-IBi9RG/b67k@public.gmane.org>
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CC: drbd-dev-cunTk1MwBs8qoQakbn7OcQ@public.gmane.org
CC: Gao Xiang <xiang-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: Jack Wang <jinpu.wang-vEVw2sk9H7kAvxtiuMwx3w@public.gmane.org>
CC: Jaegeuk Kim <jaegeuk-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: jfs-discussion-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
CC: Joern Engel <joern-o6zPIXG8fmPj4SYmN/TMmA@public.gmane.org>
CC: Joseph Qi <joseph.qi-KPsoFbNs7GizrGE5bRqYAgC/G2K4zDHf@public.gmane.org>
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CC: linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
CC: linux-xfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
CC: "Md. Haris Iqbal" <haris.iqbal-vEVw2sk9H7kAvxtiuMwx3w@public.gmane.org>
CC: Mike Snitzer <snitzer-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: Minchan Kim <minchan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: ocfs2-devel-N0ozoZBvEnrZJqsBc5GL+g@public.gmane.org
CC: reiserfs-devel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
CC: Sergey Senozhatsky <senozhatsky-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
CC: Song Liu <song-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
CC: Sven Schnelle <svens-tEXmvtCZX7AybS5Ee8rs3A@public.gmane.org>
CC: target-devel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
CC: Ted Tso <tytso-3s7WtUTddSA@public.gmane.org>
CC: Trond Myklebust <trond.myklebust-F/q8l9xzQnoyLce1RVWEUA@public.gmane.org>
CC: xen-devel-GuqFBffKawtpuQazS67q72D2FQJk+8+b@public.gmane.org
Previous versions:
Link: http://lore.kernel.org/r/20230629165206.383-1-jack-AlSwsSmVLrQ@public.gmane.org # v1
next reply other threads:[~2023-08-11 11:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-11 11:04 Jan Kara [this message]
2023-08-11 12:27 ` [PATCH v2 0/29] block: Make blkdev_get_by_*() return handle Christoph Hellwig
2023-08-25 1:58 ` Al Viro
2023-08-25 13:47 ` Jan Kara
2023-08-26 2:28 ` Al Viro
2023-08-28 14:27 ` Christoph Hellwig
2023-08-28 13:20 ` Christian Brauner
2023-08-28 14:22 ` Christoph Hellwig
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