block, bfq: use helper macro RQ_BFQQ to get bfqq of request

Use helper macro RQ_BFQQ to get bfqq of request.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230116095153.3810101-5-shikemeng@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 698c5918ad10d86767c84042c8d3aa399d3db9a0..6f38a01300347ca9224a53df0660ca61e5266a35 100644 (file)
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -6859,14 +6859,14 @@ static struct bfq_queue *bfq_init_rq(struct request *rq)
                return NULL;
 
        /*
-        * Assuming that elv.priv[1] is set only if everything is set
+        * Assuming that RQ_BFQQ(rq) is set only if everything is set
         * for this rq. This holds true, because this function is
         * invoked only for insertion or merging, and, after such
         * events, a request cannot be manipulated any longer before
         * being removed from bfq.
         */
-       if (rq->elv.priv[1])
-               return rq->elv.priv[1];
+       if (RQ_BFQQ(rq))
+               return RQ_BFQQ(rq);
 
        bic = icq_to_bic(rq->elv.icq);