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-rw-r--r--block/cfq-iosched.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 0fb78fb3c03c..15cad965b138 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -2934,7 +2934,8 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
* for devices that support queuing, otherwise we still have a problem
* with sync vs async workloads.
*/
- if (blk_queue_nonrot(cfqd->queue) && cfqd->hw_tag)
+ if (blk_queue_nonrot(cfqd->queue) && cfqd->hw_tag &&
+ !cfqd->cfq_group_idle)
return;
WARN_ON(!RB_EMPTY_ROOT(&cfqq->sort_list));
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