diff options
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 2286dc12c6bc..5c8418ebbfd6 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -114,6 +114,7 @@ typedef void (busy_iter_fn)(struct blk_mq_hw_ctx *, struct request *, void *, typedef void (busy_tag_iter_fn)(struct request *, void *, bool); typedef int (poll_fn)(struct blk_mq_hw_ctx *, unsigned int); typedef int (map_queues_fn)(struct blk_mq_tag_set *set); +typedef bool (busy_fn)(struct request_queue *); struct blk_mq_ops { @@ -165,6 +166,11 @@ struct blk_mq_ops { /* Called from inside blk_get_request() */ void (*initialize_rq_fn)(struct request *rq); + /* + * If set, returns whether or not this queue currently is busy + */ + busy_fn *busy; + map_queues_fn *map_queues; #ifdef CONFIG_BLK_DEBUG_FS |