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-rw-r--r--include/linux/blkdev.h4
-rw-r--r--include/linux/elevator.h2
2 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index b3694b9d6..2e9fc2b42 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -387,6 +387,7 @@ struct request_queue {
struct request_list root_rl;
request_fn_proc *request_fn;
+ request_fn_proc *urgent_request_fn;
make_request_fn *make_request_fn;
prep_rq_fn *prep_rq_fn;
unprep_rq_fn *unprep_rq_fn;
@@ -487,6 +488,8 @@ struct request_queue {
#endif
struct queue_limits limits;
+ bool notified_urgent;
+ bool dispatched_urgent;
/*
* sg stuff
@@ -993,6 +996,7 @@ extern struct request_queue *blk_init_queue_node(request_fn_proc *rfn,
extern struct request_queue *blk_init_queue(request_fn_proc *, spinlock_t *);
extern struct request_queue *blk_init_allocated_queue(struct request_queue *,
request_fn_proc *, spinlock_t *);
+extern void blk_urgent_request(struct request_queue *q, request_fn_proc *fn);
extern void blk_cleanup_queue(struct request_queue *);
extern void blk_queue_make_request(struct request_queue *, make_request_fn *);
extern void blk_queue_bounce_limit(struct request_queue *, u64);
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index d458ea48d..b3afa35d5 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -26,6 +26,7 @@ typedef int (elevator_dispatch_fn) (struct request_queue *, int);
typedef void (elevator_add_req_fn) (struct request_queue *, struct request *);
typedef int (elevator_reinsert_req_fn) (struct request_queue *,
struct request *);
+typedef bool (elevator_is_urgent_fn) (struct request_queue *);
typedef struct request *(elevator_request_list_fn) (struct request_queue *, struct request *);
typedef void (elevator_completed_req_fn) (struct request_queue *, struct request *);
typedef int (elevator_may_queue_fn) (struct request_queue *, int);
@@ -53,6 +54,7 @@ struct elevator_ops
elevator_dispatch_fn *elevator_dispatch_fn;
elevator_add_req_fn *elevator_add_req_fn;
elevator_reinsert_req_fn *elevator_reinsert_req_fn;
+ elevator_is_urgent_fn *elevator_is_urgent_fn;
elevator_activate_req_fn *elevator_activate_req_fn;
elevator_deactivate_req_fn *elevator_deactivate_req_fn;