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| author |   Ming Lei <tom.leiming@gmail.com> | 2013-12-26 21:31:37 +0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-12 16:22:42 +0700 |
| commit | 518d00b7498c5894be94545848d55e5b9c55749e (patch) | |
| tree | 841f92409aca75ab2eadea1955d96c33b107395a /mm | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | linux-dev-518d00b7498c5894be94545848d55e5b9c55749e.tar.xz linux-dev-518d00b7498c5894be94545848d55e5b9c55749e.zip | |
block: null_blk: fix queue leak inside removing device
When queue_mode is NULL_Q_MQ and null_blk is being removed,
blk_cleanup_queue() isn't called to cleanup queue, so the queue
allocated won't be freed.
This patch calls blk_cleanup_queue() for MQ to drain all pending
requests first and release the reference counter of queue kobject, then
blk_mq_free_queue() will be called in queue kobject's release handler
when queue kobject's reference counter drops to zero.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions