blk-mq: remove pointless call of list_entry_rq() in hctx_show_busy_rq()

Just use rq directly, the usage of list_entry_rq() doesn't make any
sense.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index a2800bc..439b7c2 100644 (file)
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -401,8 +401,7 @@ static bool hctx_show_busy_rq(struct request *rq, void *data, bool reserved)
        const struct show_busy_params *params = data;
 
        if (rq->mq_hctx == params->hctx)
-               __blk_mq_debugfs_rq_show(params->m,
-                                        list_entry_rq(&rq->queuelist));
+               __blk_mq_debugfs_rq_show(params->m, rq);
 
        return true;
 }