diff mbox series

[v3,09/15] md/raid5: Refactor for loop in raid5_make_request() into while loop

Message ID 20220616191945.23935-10-logang@deltatee.com (mailing list archive)
State Accepted, archived
Headers show
Series Improve Raid5 Lock Contention | expand

Commit Message

Logan Gunthorpe June 16, 2022, 7:19 p.m. UTC 
The for loop with retry label can be more cleanly expressed as a while
loop by moving the logical_sector increment into the success path.

No functional changes intended.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 drivers/md/raid5.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 345350d34623..17ddaa41147c 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5974,22 +5974,23 @@  static bool raid5_make_request(struct mddev *mddev, struct bio * bi)
 	}
 	md_account_bio(mddev, &bi);
 	prepare_to_wait(&conf->wait_for_overlap, &w, TASK_UNINTERRUPTIBLE);
-	for (; logical_sector < last_sector; logical_sector += RAID5_STRIPE_SECTORS(conf)) {
-	retry:
+	while (logical_sector < last_sector) {
 		res = make_stripe_request(mddev, conf, &ctx, logical_sector,
 					  bi);
 		if (res == STRIPE_FAIL)
 			break;
 
 		if (res == STRIPE_RETRY)
-			goto retry;
+			continue;
 
 		if (res == STRIPE_SCHEDULE_AND_RETRY) {
 			schedule();
 			prepare_to_wait(&conf->wait_for_overlap, &w,
 					TASK_UNINTERRUPTIBLE);
-			goto retry;
+			continue;
 		}
+
+		logical_sector += RAID5_STRIPE_SECTORS(conf);
 	}
 
 	finish_wait(&conf->wait_for_overlap, &w);