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Subject[PATCH v3 09/15] md/raid5: Refactor for loop in raid5_make_request() into while loop
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 --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);
--
2.30.2
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