02_blk_dispatch_queue_noop.patch
Update noop iosched to use generic dispatch queue
Signed-off-by: Tejun Heo <[email protected]>
noop-iosched.c | 17 +++++------------
1 files changed, 5 insertions(+), 12 deletions(-)
Index: blk-fixes/drivers/block/noop-iosched.c
===================================================================
--- blk-fixes.orig/drivers/block/noop-iosched.c 2005-06-16 13:55:36.000000000 +0900
+++ blk-fixes/drivers/block/noop-iosched.c 2005-06-16 13:55:38.000000000 +0900
@@ -28,13 +28,9 @@ static void elevator_noop_merge_requests
list_del_init(&next->queuelist);
}
-static void elevator_noop_add_request(request_queue_t *q, struct request *rq,
- int where)
+static void elevator_noop_add_request(request_queue_t *q, struct request *rq)
{
- if (where == ELEVATOR_INSERT_FRONT)
- list_add(&rq->queuelist, &q->queue_head);
- else
- list_add_tail(&rq->queuelist, &q->queue_head);
+ elv_dispatch_insert(q, rq, 0);
/*
* new merges must not precede this barrier
@@ -45,19 +41,16 @@ static void elevator_noop_add_request(re
q->last_merge = rq;
}
-static struct request *elevator_noop_next_request(request_queue_t *q)
+static int elevator_noop_dispatch(request_queue_t *q, int force)
{
- if (!list_empty(&q->queue_head))
- return list_entry_rq(q->queue_head.next);
-
- return NULL;
+ return 0;
}
static struct elevator_type elevator_noop = {
.ops = {
.elevator_merge_fn = elevator_noop_merge,
.elevator_merge_req_fn = elevator_noop_merge_requests,
- .elevator_next_req_fn = elevator_noop_next_request,
+ .elevator_dispatch_fn = elevator_noop_dispatch,
.elevator_add_req_fn = elevator_noop_add_request,
},
.elevator_name = "noop",
-
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