enable kexec

[linux-2.6.git] / include / linux / elevator.h

diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 27e8183..b42a9c4 100644 (file)
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -17,6 +17,7 @@ typedef void (elevator_requeue_req_fn) (request_queue_t *, struct request *);
 typedef struct request *(elevator_request_list_fn) (request_queue_t *, struct request *);
 typedef void (elevator_completed_req_fn) (request_queue_t *, struct request *);
 typedef int (elevator_may_queue_fn) (request_queue_t *, int);
+typedef void (elevator_set_congested_fn) (request_queue_t *);
 
 typedef int (elevator_set_req_fn) (request_queue_t *, struct request *, int);
 typedef void (elevator_put_req_fn) (request_queue_t *, struct request *);
@@ -45,6 +46,7 @@ struct elevator_s
        elevator_put_req_fn *elevator_put_req_fn;
 
        elevator_may_queue_fn *elevator_may_queue_fn;
+       elevator_set_congested_fn *elevator_set_congested_fn;
 
        elevator_init_fn *elevator_init_fn;
        elevator_exit_fn *elevator_exit_fn;
@@ -74,6 +76,7 @@ extern struct request *elv_latter_request(request_queue_t *, struct request *);
 extern int elv_register_queue(request_queue_t *q);
 extern void elv_unregister_queue(request_queue_t *q);
 extern int elv_may_queue(request_queue_t *, int);
+extern void elv_set_congested(request_queue_t *);
 extern void elv_completed_request(request_queue_t *, struct request *);
 extern int elv_set_request(request_queue_t *, struct request *, int);
 extern void elv_put_request(request_queue_t *, struct request *);
@@ -119,4 +122,6 @@ extern int elv_try_last_merge(request_queue_t *, struct bio *);
 #define ELEVATOR_INSERT_BACK   2
 #define ELEVATOR_INSERT_SORT   3
 
+#define RQ_ELV_DATA(rq)                (rq)->elevator_private
+
 #endif