cfq-iosched: don't pass in queue for cfq_arm_slice_timer()
It must always be the active queue, otherwise it's a bug. So just
use the active_queue, don't pass it in explicitly.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 039b38c..3df41a0 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -822,14 +822,13 @@
#define CIC_SEEKY(cic) ((cic)->seek_mean > (128 * 1024))
-static int cfq_arm_slice_timer(struct cfq_data *cfqd, struct cfq_queue *cfqq)
-
+static int cfq_arm_slice_timer(struct cfq_data *cfqd)
{
+ struct cfq_queue *cfqq = cfqd->active_queue;
struct cfq_io_context *cic;
unsigned long sl;
WARN_ON(!RB_EMPTY_ROOT(&cfqq->sort_list));
- WARN_ON(cfqq != cfqd->active_queue);
/*
* idle is disabled, either manually or by past process history
@@ -937,7 +936,7 @@
cfqq = NULL;
goto keep_queue;
} else if (cfq_cfqq_class_sync(cfqq)) {
- if (cfq_arm_slice_timer(cfqd, cfqq))
+ if (cfq_arm_slice_timer(cfqd))
return NULL;
}
@@ -1734,7 +1733,7 @@
if (cfq_slice_used(cfqq))
cfq_slice_expired(cfqd, 0);
else if (sync && RB_EMPTY_ROOT(&cfqq->sort_list)) {
- if (!cfq_arm_slice_timer(cfqd, cfqq))
+ if (!cfq_arm_slice_timer(cfqd))
cfq_schedule_dispatch(cfqd);
}
}