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| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | 2021-09-07 19:18:00 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-17 06:51:19 -0600 |
| commit | f7bf35862477d6d4f8a9746c645a4380de984700 (patch) | |
| tree | e95a4fb202a0a1eec7c7bdfa96af425569b14ddc /block/bfq-cgroup.c | |
| parent | c41108049d143304faf06852c7181262b7b0d242 (diff) | |
| download | lwn-f7bf35862477d6d4f8a9746c645a4380de984700.tar.gz lwn-f7bf35862477d6d4f8a9746c645a4380de984700.zip | |
brd: reduce the brd_devices_mutex scope
As with commit 8b52d8be86d72308 ("loop: reorder loop_exit"),
unregister_blkdev() needs to be called first in order to avoid calling
brd_alloc() from brd_probe() after brd_del_one() from brd_exit(). Then,
we can avoid holding global mutex during add_disk()/del_gendisk() as with
commit 1c500ad706383f1a ("loop: reduce the loop_ctl_mutex scope").
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/e205f13d-18ff-a49c-0988-7de6ea5ff823@i-love.sakura.ne.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bfq-cgroup.c')
0 files changed, 0 insertions, 0 deletions