From: Yu Kuai Date: Sat, 24 May 2025 06:13:10 +0000 (+0800) Subject: md/md-bitmap: fix dm-raid max_write_behind setting X-Git-Tag: v6.16-rc1~26^2~14^2~3 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2afe17794cfed5f80295b1b9facd66e6f65e5002;p=thirdparty%2Fkernel%2Flinux.git md/md-bitmap: fix dm-raid max_write_behind setting It's supposed to be COUNTER_MAX / 2, not COUNTER_MAX. Link: https://lore.kernel.org/linux-raid/20250524061320.370630-14-yukuai1@huaweicloud.com Signed-off-by: Yu Kuai Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke --- diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index 37b08f26c62f..45dd3d9f01a8 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -789,7 +789,7 @@ static int md_bitmap_new_disk_sb(struct bitmap *bitmap) * is a good choice? We choose COUNTER_MAX / 2 arbitrarily. */ write_behind = bitmap->mddev->bitmap_info.max_write_behind; - if (write_behind > COUNTER_MAX) + if (write_behind > COUNTER_MAX / 2) write_behind = COUNTER_MAX / 2; sb->write_behind = cpu_to_le32(write_behind); bitmap->mddev->bitmap_info.max_write_behind = write_behind;