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Diffstat (limited to 'block/blk-mq.c')
-rw-r--r--block/blk-mq.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index fed8165973a3..7173d4bd64af 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -126,7 +126,8 @@ void blk_freeze_queue_start(struct request_queue *q)
freeze_depth = atomic_inc_return(&q->mq_freeze_depth);
if (freeze_depth == 1) {
percpu_ref_kill(&q->q_usage_counter);
- blk_mq_run_hw_queues(q, false);
+ if (q->mq_ops)
+ blk_mq_run_hw_queues(q, false);
}
}
EXPORT_SYMBOL_GPL(blk_freeze_queue_start);
@@ -256,13 +257,6 @@ void blk_mq_wake_waiters(struct request_queue *q)
queue_for_each_hw_ctx(q, hctx, i)
if (blk_mq_hw_queue_mapped(hctx))
blk_mq_tag_wakeup_all(hctx->tags, true);
-
- /*
- * If we are called because the queue has now been marked as
- * dying, we need to ensure that processes currently waiting on
- * the queue are notified as well.
- */
- wake_up_all(&q->mq_freeze_wq);
}
bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx)