diff options
| author | Jens Axboe <axboe@suse.de> | 2006-06-16 15:35:39 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2006-06-23 17:10:39 +0200 |
| commit | fd61af0384014ca29428ace7c17a978b755aeddd (patch) | |
| tree | c7aa5ca9b91383b7c97199189214fa86a6a51b4f /block | |
| parent | [PATCH] cfq-iosched: many performance fixes (diff) | |
| download | linux-fd61af0384014ca29428ace7c17a978b755aeddd.tar.xz linux-fd61af0384014ca29428ace7c17a978b755aeddd.zip | |
[PATCH] cfq-iosched: rq update fixes
- Remember to set ->last_sector so that the cfq_choose_req() logic
works correctly.
- Remove redundant call to cfq_choose_req()
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'block')
| -rw-r--r-- | block/cfq-iosched.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 13c4793fdf5f..940364edf2b9 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -952,11 +952,15 @@ static void cfq_dispatch_insert(request_queue_t *q, struct cfq_rq *crq) { struct cfq_data *cfqd = q->elevator->elevator_data; struct cfq_queue *cfqq = crq->cfq_queue; + struct request *rq; cfqq->next_crq = cfq_find_next_crq(cfqd, cfqq, crq); cfq_remove_request(crq->request); cfqq->on_dispatch[cfq_crq_is_sync(crq)]++; elv_dispatch_sort(q, crq->request); + + rq = list_entry(q->queue_head.prev, struct request, queuelist); + cfqd->last_sector = rq->sector + rq->nr_sectors; } /* @@ -1767,11 +1771,7 @@ static void cfq_crq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq, struct cfq_rq *crq) { - struct cfq_io_context *cic; - - cfqq->next_crq = cfq_choose_req(cfqd, cfqq->next_crq, crq); - - cic = crq->io_context; + struct cfq_io_context *cic = crq->io_context; /* * we never wait for an async request and we don't allow preemption |