[PATCH v3 13/14] blk-mq: use switch/case to improve readability in blk_mq_try_issue_list_directly

[Kemeng Shi]

Use switch/case handle error as other function do to improve
readability in blk_mq_try_issue_list_directly.

Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
---
 block/blk-mq.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 1b66a5169be2..baa65a15abb5 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2806,18 +2806,22 @@ void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
 
 		list_del_init(&rq->queuelist);
 		ret = blk_mq_request_issue_directly(rq, list_empty(list));
-		if (ret != BLK_STS_OK) {
-			if (ret == BLK_STS_RESOURCE ||
-					ret == BLK_STS_DEV_RESOURCE) {
-				blk_mq_request_bypass_insert(rq, false,
-							list_empty(list));
-				break;
-			}
-			blk_mq_end_request(rq, ret);
-		} else
+		switch (ret) {
+		case BLK_STS_OK:
 			queued++;
+			break;
+		case BLK_STS_RESOURCE:
+		case BLK_STS_DEV_RESOURCE:
+			blk_mq_request_bypass_insert(rq, false,
+					list_empty(list));
+			goto out;
+		default:
+			blk_mq_end_request(rq, ret);
+			break;
+		}
 	}
 
+out:
 	if (ret != BLK_STS_OK)
 		blk_mq_commit_rqs(hctx, queued);
 }
-- 
2.30.0