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Commit 62e1e389 authored by NeilBrown's avatar NeilBrown
Browse files

md: always update level / chunk_size / layout when writing v1.x metadata. 



We previously didn't update these fields when writing the metadata
because they could never change.  They can now, so we better write
them.
v0.90 metadata always updated these fields.

Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 59a3759d

drivers/md/md.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -1375,6 +1375,9 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev) 




	sb->raid_disks = cpu_to_le32(mddev->raid_disks);

	sb->raid_disks = cpu_to_le32(mddev->raid_disks);

	sb->size = cpu_to_le64(mddev->dev_sectors);

	sb->size = cpu_to_le64(mddev->dev_sectors);

	sb->chunksize = cpu_to_le32(mddev->chunk_size >> 9);

	sb->level = cpu_to_le32(mddev->level);

	sb->layout = cpu_to_le32(mddev->layout);





	if (mddev->bitmap && mddev->bitmap_file == NULL) {

	if (mddev->bitmap && mddev->bitmap_file == NULL) {

		sb->bitmap_offset = cpu_to_le32((__u32)mddev->bitmap_offset);

		sb->bitmap_offset = cpu_to_le32((__u32)mddev->bitmap_offset);