md/raid10: set chunk_sectors limit

JIRA: https://issues.redhat.com/browse/RHEL-94433

commit 7ef50c4
Author: John Garry <john.g.garry@oracle.com>
Date:   Fri Jul 11 10:52:56 2025 +0000

    md/raid10: set chunk_sectors limit

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

    Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
    Reviewed-by: Yu Kuai <yukuai3@huawei.com>
    Signed-off-by: John Garry <john.g.garry@oracle.com>
    Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
    Link: https://lore.kernel.org/r/20250711105258.3135198-5-john.g.garry@oracle.com
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

Signed-off-by: Nigel Croxon <ncroxon@redhat.com>

Author: ncroxon

drivers/md/raid10.c

@@ -4009,6 +4009,7 @@ 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);