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Diffstat (limited to 'block/blk-mq.c')
-rw-r--r--block/blk-mq.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 3af88ffc9e2c..7cd408408a37 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -4581,11 +4581,10 @@ EXPORT_SYMBOL_GPL(blk_mq_update_nr_hw_queues);
/* Enable polling stats and return whether they were already enabled. */
static bool blk_poll_stats_enable(struct request_queue *q)
{
- if (test_bit(QUEUE_FLAG_POLL_STATS, &q->queue_flags) ||
- blk_queue_flag_test_and_set(QUEUE_FLAG_POLL_STATS, q))
+ if (q->poll_stat)
return true;
- blk_stat_add_callback(q, q->poll_cb);
- return false;
+
+ return blk_stats_alloc_enable(q);
}
static void blk_mq_poll_stats_start(struct request_queue *q)
@@ -4594,8 +4593,7 @@ static void blk_mq_poll_stats_start(struct request_queue *q)
* We don't arm the callback if polling stats are not enabled or the
* callback is already active.
*/
- if (!test_bit(QUEUE_FLAG_POLL_STATS, &q->queue_flags) ||
- blk_stat_is_active(q->poll_cb))
+ if (!q->poll_stat || blk_stat_is_active(q->poll_cb))
return;
blk_stat_activate_msecs(q->poll_cb, 100);