linux-kernel - [PATCH RFC 2/4] md/raid10: set chunk

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Message-Id: <20250605150857.4061971-3-john.g.garry@oracle.com>
Date: Thu,  5 Jun 2025 15:08:55 +0000
From: John Garry <john.g.garry@...cle.com>
To: agk@...hat.com, snitzer@...nel.org, mpatocka@...hat.com, song@...nel.org,
        yukuai3@...wei.com, hch@....de, nilay@...ux.ibm.com, axboe@...nel.dk
Cc: dm-devel@...ts.linux.dev, linux-kernel@...r.kernel.org,
        linux-raid@...r.kernel.org, linux-block@...r.kernel.org,
        ojaswin@...ux.ibm.com, martin.petersen@...cle.com,
        John Garry <john.g.garry@...cle.com>
Subject: [PATCH RFC 2/4] md/raid10: set chunk_sectors limit

Same as done for raid0, set chunk_sectors limit to appropriately set the
atomic write size limit.

Signed-off-by: John Garry <john.g.garry@...cle.com>
---
 drivers/md/raid10.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index dce06bf65016..60abe063f248 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -4003,6 +4003,7 @@ static int raid10_set_queue_limits(struct mddev *mddev)
 	md_init_stacking_limits(&lim);
 	lim.max_write_zeroes_sectors = 0;
 	lim.io_min = mddev->chunk_sectors << 9;
+	lim.chunk_sectors = mddev->chunk_sectors;
 	lim.io_opt = lim.io_min * raid10_nr_stripes(conf);
 	lim.features |= BLK_FEAT_ATOMIC_WRITES;
 	err = mddev_stack_rdev_limits(mddev, &lim, MDDEV_STACK_INTEGRITY);
-- 
2.31.1