md: merge mddev has_superblock into mddev_flags

There is not need to use a separate field in struct mddev, there are no
functional changes.

Link: https://lore.kernel.org/linux-raid/20260114171241.3043364-3-yukuai@fnnas.com
Signed-off-by: Yu Kuai <yukuai@fnnas.com>
Reviewed-by: Li Nan <linan122@huawei.com>
This commit is contained in:
Yu Kuai 2026-01-15 01:12:30 +08:00
commit fba4a98040
2 changed files with 5 additions and 4 deletions