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| author | Ming Lei <ming.lei@canonical.com> | 2015-01-29 20:17:27 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-01-29 08:30:51 -0800 |
| commit | e09aae7edec1d20824c60a6f0ca4589f99ada17b (patch) | |
| tree | 1cf7f6b2434f356f9dab4104bd5ecbfa85228799 /block/blk-mq.h | |
| parent | 74170118b26e55b611de5210f47657118a03a0e1 (diff) | |
| download | lwn-e09aae7edec1d20824c60a6f0ca4589f99ada17b.tar.gz lwn-e09aae7edec1d20824c60a6f0ca4589f99ada17b.zip | |
blk-mq: release mq's kobjects in blk_release_queue()
The kobject memory inside blk-mq hctx/ctx shouldn't have been freed
before the kobject is released because driver core can access it freely
before its release.
We can't do that in all ctx/hctx/mq_kobj's release handler because
it can be run before blk_cleanup_queue().
Given mq_kobj shouldn't have been introduced, this patch simply moves
mq's release into blk_release_queue().
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq.h')
| -rw-r--r-- | block/blk-mq.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h index 4f4f943c22c3..6a48c4c0d8a2 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -62,6 +62,8 @@ extern void blk_mq_sysfs_unregister(struct request_queue *q); extern void blk_mq_rq_timed_out(struct request *req, bool reserved); +void blk_mq_release(struct request_queue *q); + /* * Basic implementation of sparser bitmap, allowing the user to spread * the bits over more cachelines. |