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authorBart Van Assche <bart.vanassche@wdc.com>2017-06-21 20:55:47 +0300
committerJens Axboe <axboe@kernel.dk>2017-06-21 21:01:15 +0300
commit852ec80983d682dc08a0573d37eeaa9814c4f6b1 (patch)
treea28ce236f89bd4c8e05a16e5869f3702ba914ea4 /include
parent34bd9c1c4f62e936d8865e6442f332cd85bdfc95 (diff)
downloadlinux-852ec80983d682dc08a0573d37eeaa9814c4f6b1.tar.xz
blk-mq: Make it safe to quiesce and unquiesce from an interrupt handler
Since blk_mq_quiesce_queue_nowait() can be called from interrupt context, make this safe. Since this function is not in the hot path, uninline it. Fixes: commit f4560ffe8cec ("blk-mq: use QUEUE_FLAG_QUIESCED to quiesce queue") Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Ming Lei <ming.lei@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/blk-mq.h10
1 files changed, 1 insertions, 9 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 366b83cee955..23d32ff0b462 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -266,15 +266,7 @@ int blk_mq_reinit_tagset(struct blk_mq_tag_set *set);
int blk_mq_map_queues(struct blk_mq_tag_set *set);
void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues);
-/*
- * FIXME: this helper is just for working around mpt3sas.
- */
-static inline void blk_mq_quiesce_queue_nowait(struct request_queue *q)
-{
- spin_lock_irq(q->queue_lock);
- queue_flag_set(QUEUE_FLAG_QUIESCED, q);
- spin_unlock_irq(q->queue_lock);
-}
+void blk_mq_quiesce_queue_nowait(struct request_queue *q);
/*
* Driver command data is immediately after the request. So subtract request