if-else is more readable than goto here. Signed-off-by: Jinlong Chen <nickyc975@xxxxxxxxxx> --- block/blk-mq.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 453ad445a6bd..6ffca7af5b6f 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -544,25 +544,26 @@ static struct request *blk_mq_alloc_cached_request(struct request_queue *q, if (!plug) return NULL; + if (rq_list_empty(plug->cached_rq)) { if (plug->nr_ios == 1) return NULL; rq = blk_mq_rq_cache_fill(q, plug, opf, flags); - if (rq) - goto got_it; - return NULL; - } - rq = rq_list_peek(&plug->cached_rq); - if (!rq || rq->q != q) - return NULL; + if (!rq) + return NULL; + } else { + rq = rq_list_peek(&plug->cached_rq); + if (!rq || rq->q != q) + return NULL; - if (blk_mq_get_hctx_type(opf) != rq->mq_hctx->type) - return NULL; - if (op_is_flush(rq->cmd_flags) != op_is_flush(opf)) - return NULL; + if (blk_mq_get_hctx_type(opf) != rq->mq_hctx->type) + return NULL; + if (op_is_flush(rq->cmd_flags) != op_is_flush(opf)) + return NULL; + + plug->cached_rq = rq_list_next(rq); + } - plug->cached_rq = rq_list_next(rq); -got_it: rq->cmd_flags = opf; INIT_LIST_HEAD(&rq->queuelist); return rq; -- 2.31.1