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[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>
This commit is contained in:
Jens Axboe 2006-06-16 15:35:39 +02:00 committed by Jens Axboe
parent caaa5f9f0a
commit fd61af0384
1 changed files with 5 additions and 5 deletions
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10
block/cfq-iosched.c
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@ -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