Merge tag 'selinux-pr-20200601' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / include / linux / blk-mq.h

diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index b45148b..d6fcae1 100644 (file)
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -140,6 +140,8 @@ struct blk_mq_hw_ctx {
         */
        atomic_t                nr_active;
 
+       /** @cpuhp_online: List to store request if CPU is going to die */
+       struct hlist_node       cpuhp_online;
        /** @cpuhp_dead: List to store request if some CPU die. */
        struct hlist_node       cpuhp_dead;
        /** @kobj: Kernel object for sysfs. */
@@ -391,6 +393,11 @@ struct blk_mq_ops {
 enum {
        BLK_MQ_F_SHOULD_MERGE   = 1 << 0,
        BLK_MQ_F_TAG_SHARED     = 1 << 1,
+       /*
+        * Set when this device requires underlying blk-mq device for
+        * completing IO:
+        */
+       BLK_MQ_F_STACKING       = 1 << 2,
        BLK_MQ_F_BLOCKING       = 1 << 5,
        BLK_MQ_F_NO_SCHED       = 1 << 6,
        BLK_MQ_F_ALLOC_POLICY_START_BIT = 8,
@@ -400,6 +407,9 @@ enum {
        BLK_MQ_S_TAG_ACTIVE     = 1,
        BLK_MQ_S_SCHED_RESTART  = 2,
 
+       /* hw queue is inactive after all its CPUs become offline */
+       BLK_MQ_S_INACTIVE       = 3,
+
        BLK_MQ_MAX_DEPTH        = 10240,
 
        BLK_MQ_CPU_WORK_BATCH   = 8,
@@ -494,6 +504,7 @@ void blk_mq_requeue_request(struct request *rq, bool kick_requeue_list);
 void blk_mq_kick_requeue_list(struct request_queue *q);
 void blk_mq_delay_kick_requeue_list(struct request_queue *q, unsigned long msecs);
 bool blk_mq_complete_request(struct request *rq);
+void blk_mq_force_complete_rq(struct request *rq);
 bool blk_mq_bio_list_merge(struct request_queue *q, struct list_head *list,
                           struct bio *bio, unsigned int nr_segs);
 bool blk_mq_queue_stopped(struct request_queue *q);
@@ -508,6 +519,7 @@ void blk_mq_unquiesce_queue(struct request_queue *q);
 void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs);
 void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async);
 void blk_mq_run_hw_queues(struct request_queue *q, bool async);
+void blk_mq_delay_run_hw_queues(struct request_queue *q, unsigned long msecs);
 void blk_mq_tagset_busy_iter(struct blk_mq_tag_set *tagset,
                busy_tag_iter_fn *fn, void *priv);
 void blk_mq_tagset_wait_completed_request(struct blk_mq_tag_set *tagset);
@@ -577,4 +589,6 @@ static inline void blk_mq_cleanup_rq(struct request *rq)
                rq->q->mq_ops->cleanup_rq(rq);
 }
 
+blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio);
+
 #endif