4 #include <linux/blkdev.h>
5 #include <linux/elevator.h>
7 #include <linux/module.h>
8 #include <linux/init.h>
10 static void elevator_noop_add_request(request_queue_t
*q
, struct request
*rq
)
12 elv_dispatch_add_tail(q
, rq
);
15 static int elevator_noop_dispatch(request_queue_t
*q
, int force
)
20 static struct elevator_type elevator_noop
= {
22 .elevator_dispatch_fn
= elevator_noop_dispatch
,
23 .elevator_add_req_fn
= elevator_noop_add_request
,
25 .elevator_name
= "noop",
26 .elevator_owner
= THIS_MODULE
,
29 static int __init
noop_init(void)
31 return elv_register(&elevator_noop
);
34 static void __exit
noop_exit(void)
36 elv_unregister(&elevator_noop
);
39 module_init(noop_init
);
40 module_exit(noop_exit
);
43 MODULE_AUTHOR("Jens Axboe");
44 MODULE_LICENSE("GPL");
45 MODULE_DESCRIPTION("No-op IO scheduler");