btrfs-progs: Add open_ctree check for uuid changing

Now open_ctree will exit if it found the superblock is marked
CHANGING_FSID, except given IGNORE_FSID open ctree flags.

Kernel will do the same thing later.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[removed the chunk tree flag, reworded the error message]
Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 1 insertions, 0 deletions

diff --git a/ctree.h b/ctree.h
index 7c1bef55..98cb1fb9 100644
--- a/ctree.h
+++ b/ctree.h
@@ -1011,6 +1011,7 @@ struct btrfs_fs_info {
 	unsigned int is_chunk_recover:1;
 	unsigned int quota_enabled:1;
 	unsigned int suppress_check_block_errors:1;
+	unsigned int ignore_fsid_mismatch:1;
 
 	int (*free_extent_hook)(struct btrfs_trans_handle *trans,
 				struct btrfs_root *root,