diff options
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 5735e7130d6..7aec8612733 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -146,6 +146,8 @@ enum { BLK_MQ_F_SG_MERGE = 1 << 2, BLK_MQ_F_SYSFS_UP = 1 << 3, BLK_MQ_F_DEFER_ISSUE = 1 << 4, + BLK_MQ_F_ALLOC_POLICY_START_BIT = 8, + BLK_MQ_F_ALLOC_POLICY_BITS = 1, BLK_MQ_S_STOPPED = 0, BLK_MQ_S_TAG_ACTIVE = 1, @@ -154,6 +156,12 @@ enum { BLK_MQ_CPU_WORK_BATCH = 8, }; +#define BLK_MQ_FLAG_TO_ALLOC_POLICY(flags) \ + ((flags >> BLK_MQ_F_ALLOC_POLICY_START_BIT) & \ + ((1 << BLK_MQ_F_ALLOC_POLICY_BITS) - 1)) +#define BLK_ALLOC_POLICY_TO_MQ_FLAG(policy) \ + ((policy & ((1 << BLK_MQ_F_ALLOC_POLICY_BITS) - 1)) \ + << BLK_MQ_F_ALLOC_POLICY_START_BIT) struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *); void blk_mq_finish_init(struct request_queue *q); @@ -166,7 +174,6 @@ void blk_mq_free_tag_set(struct blk_mq_tag_set *set); void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule); void blk_mq_insert_request(struct request *, bool, bool, bool); -void blk_mq_run_queues(struct request_queue *q, bool async); void blk_mq_free_request(struct request *rq); void blk_mq_free_hctx_request(struct blk_mq_hw_ctx *, struct request *rq); bool blk_mq_can_queue(struct blk_mq_hw_ctx *); @@ -214,6 +221,7 @@ void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async); void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs); void blk_mq_tag_busy_iter(struct blk_mq_hw_ctx *hctx, busy_iter_fn *fn, void *priv); +void blk_mq_freeze_queue(struct request_queue *q); void blk_mq_unfreeze_queue(struct request_queue *q); void blk_mq_freeze_queue_start(struct request_queue *q); |