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md/raid5: call roundup_pow_of_two in raid5_run

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Let's call roundup_pow_of_two here instead of open code.

Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Guoqing Jiang 2021-10-04 23:34:52 +08:00 committed by Jens Axboe
parent 2e94275ed5
commit c6efe4341d
1 changed files with 1 additions and 4 deletions
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5
drivers/md/raid5.c
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@ -7732,10 +7732,7 @@ static int raid5_run(struct mddev *mddev)
* discard data disk but write parity disk
*/
stripe = stripe * PAGE_SIZE;
/* Round up to power of 2, as discard handling
* currently assumes that */
while ((stripe-1) & stripe)
stripe = (stripe | (stripe-1)) + 1;
stripe = roundup_pow_of_two(stripe);
mddev->queue->limits.discard_alignment = stripe;
mddev->queue->limits.discard_granularity = stripe;