diff options
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index f68398cb2ef6..a99b22fac38a 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -327,6 +327,9 @@ EXPORT_SYMBOL_GPL(blk_clear_pm_only); * * Decrements the refcount of the request_queue kobject. When this reaches 0 * we'll have blk_release_queue() called. + * + * Context: Any context, but the last reference must not be dropped from + * atomic context. */ void blk_put_queue(struct request_queue *q) { @@ -359,9 +362,14 @@ EXPORT_SYMBOL_GPL(blk_set_queue_dying); * * Mark @q DYING, drain all pending requests, mark @q DEAD, destroy and * put it. All future requests will be failed immediately with -ENODEV. + * + * Context: can sleep */ void blk_cleanup_queue(struct request_queue *q) { + /* cannot be called from atomic context */ + might_sleep(); + WARN_ON_ONCE(blk_queue_registered(q)); /* mark @q DYING, no new request or merges will be allowed afterwards */ |