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authorJens Axboe <axboe@suse.de>2006-06-16 15:35:39 +0200
committerJens Axboe <axboe@nelson.home.kernel.dk>2006-06-23 17:10:39 +0200
commitfd61af0384014ca29428ace7c17a978b755aeddd (patch)
treec7aa5ca9b91383b7c97199189214fa86a6a51b4f /block
parentcaaa5f9f0a75d1dc5e812e69afdbb8720e077fd3 (diff)
downloadlinux-linaro-stable-fd61af0384014ca29428ace7c17a978b755aeddd.tar.gz
[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.c10
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