In the function set_metadata_uuid(), we set the flag
BTRFS_SUPER_FLAG_CHANGING_FSID_V2 in step 1 at line 71 as shown below:
71 super_flags |= BTRFS_SUPER_FLAG_CHANGING_FSID_V2;
72 btrfs_set_super_flags(disk_super, super_flags);
73 ret = btrfs_commit_transaction(trans, root);
However, we fail to reset this flag if there is no change in the fsid on
the incoming disks, as we return too early.
105 } else {
106 /* Setting the same fsid as current, do nothing */
107 return 0;
Fix this by allowing the thread to pass through the step 2, where we
reset the flag.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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