cfq-iosched: get rid of ->dispatch_slice
We can track it fairly accurately locally, let the slice handling
take care of the rest.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index f089eee..839086d 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -106,7 +106,6 @@
struct cfq_queue *active_queue;
struct cfq_io_context *active_cic;
- unsigned int dispatch_slice;
struct timer_list idle_class_timer;
@@ -775,8 +774,6 @@
put_io_context(cfqd->active_cic->ioc);
cfqd->active_cic = NULL;
}
-
- cfqd->dispatch_slice = 0;
}
static inline void cfq_slice_expired(struct cfq_data *cfqd, int timed_out)
@@ -1026,7 +1023,6 @@
*/
cfq_dispatch_insert(cfqd->queue, rq);
- cfqd->dispatch_slice++;
dispatched++;
if (!cfqd->active_cic) {
@@ -1044,7 +1040,7 @@
* queue always expire after 1 dispatch round.
*/
if (cfqd->busy_queues > 1 && ((!cfq_cfqq_sync(cfqq) &&
- cfqd->dispatch_slice >= cfq_prio_to_maxrq(cfqd, cfqq)) ||
+ dispatched >= cfq_prio_to_maxrq(cfqd, cfqq)) ||
cfq_class_idle(cfqq))) {
cfqq->slice_end = jiffies + 1;
cfq_slice_expired(cfqd, 0);