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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-09-28 08:03:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-09-28 08:03:00 -0700 |
| commit | c54a06d45a937750e76df2f91e940f82c07c5bf7 (patch) | |
| tree | 703df5d5e9880c321aa14646668d642db1a3e8f5 | |
| parent | e689ec8057ea07f918dc2201a5beb7f2292db32f (diff) | |
| parent | 777eb1bf15b8532c396821774bf6451e563438f5 (diff) | |
| download | linux-c54a06d45a937750e76df2f91e940f82c07c5bf7.tar.bz2 | |
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
* 'for-linus' of git://git.kernel.dk/linux-block:
block: Free queue resources at blk_release_queue()
| -rw-r--r-- | block/blk-core.c | 13 | ||||
| -rw-r--r-- | block/blk-sysfs.c | 5 |
2 files changed, 11 insertions, 7 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index b2ed78afd9f0..d34433ae7917 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -348,9 +348,10 @@ void blk_put_queue(struct request_queue *q) EXPORT_SYMBOL(blk_put_queue); /* - * Note: If a driver supplied the queue lock, it should not zap that lock - * unexpectedly as some queue cleanup components like elevator_exit() and - * blk_throtl_exit() need queue lock. + * Note: If a driver supplied the queue lock, it is disconnected + * by this function. The actual state of the lock doesn't matter + * here as the request_queue isn't accessible after this point + * (QUEUE_FLAG_DEAD is set) and no other requests will be queued. */ void blk_cleanup_queue(struct request_queue *q) { @@ -367,10 +368,8 @@ void blk_cleanup_queue(struct request_queue *q) queue_flag_set_unlocked(QUEUE_FLAG_DEAD, q); mutex_unlock(&q->sysfs_lock); - if (q->elevator) - elevator_exit(q->elevator); - - blk_throtl_exit(q); + if (q->queue_lock != &q->__queue_lock) + q->queue_lock = &q->__queue_lock; blk_put_queue(q); } diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index e681805cdb47..60fda88c57f0 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -479,6 +479,11 @@ static void blk_release_queue(struct kobject *kobj) blk_sync_queue(q); + if (q->elevator) + elevator_exit(q->elevator); + + blk_throtl_exit(q); + if (rl->rq_pool) mempool_destroy(rl->rq_pool); |