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Diffstat (limited to 'include/linux/blk-mq.h')
-rw-r--r--include/linux/blk-mq.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 5e7d43ab6..daf17d70a 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -59,6 +59,9 @@ struct blk_mq_hw_ctx {
struct blk_mq_cpu_notifier cpu_notifier;
struct kobject kobj;
+
+ unsigned long poll_invoked;
+ unsigned long poll_success;
};
struct blk_mq_tag_set {
@@ -97,6 +100,8 @@ typedef void (exit_request_fn)(void *, struct request *, unsigned int,
typedef void (busy_iter_fn)(struct blk_mq_hw_ctx *, struct request *, void *,
bool);
typedef void (busy_tag_iter_fn)(struct request *, void *, bool);
+typedef int (poll_fn)(struct blk_mq_hw_ctx *, unsigned int);
+
struct blk_mq_ops {
/*
@@ -114,6 +119,11 @@ struct blk_mq_ops {
*/
timeout_fn *timeout;
+ /*
+ * Called to poll for completion of a specific tag.
+ */
+ poll_fn *poll;
+
softirq_done_fn *complete;
/*
@@ -166,7 +176,6 @@ enum {
struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *);
struct request_queue *blk_mq_init_allocated_queue(struct blk_mq_tag_set *set,
struct request_queue *q);
-void blk_mq_finish_init(struct request_queue *q);
int blk_mq_register_disk(struct gendisk *);
void blk_mq_unregister_disk(struct gendisk *);