diff options
| author | Stefan Behrens <sbehrens@giantdisaster.de> | 2013-06-26 17:17:55 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2013-08-09 14:32:31 +0200 |
| commit | 64075c5be95b96f3b986b0bf8f6b8e4d910ef1a0 (patch) | |
| tree | 034871aa9e842434219ba24b728a83f6a4772500 /ctree.h | |
| parent | a54a29a0cd3e46ebd8a73c8ebc3cbbb66aec5d0a (diff) | |
Btrfs-progs: Support UUID tree and UUID items in btrfs-debug-tree
Support printing these things.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'ctree.h')
| -rw-r--r-- | ctree.h | 15 |
1 files changed, 15 insertions, 0 deletions
@@ -71,6 +71,8 @@ struct btrfs_free_space_ctl; #define BTRFS_CSUM_TREE_OBJECTID 7ULL #define BTRFS_QUOTA_TREE_OBJECTID 8ULL +/* for storing items that use the BTRFS_UUID_KEY* */ +#define BTRFS_UUID_TREE_OBJECTID 9ULL /* for storing balance parameters in the root tree */ #define BTRFS_BALANCE_OBJECTID -4ULL @@ -1108,6 +1110,19 @@ struct btrfs_root { #define BTRFS_DEV_REPLACE_KEY 250 /* + * Stores items that allow to quickly map UUIDs to something else. + * These items are part of the filesystem UUID tree. + * The key is built like this: + * (UUID_upper_64_bits, BTRFS_UUID_KEY*, UUID_lower_64_bits). + */ +#if BTRFS_UUID_SIZE != 16 +#error "UUID items require BTRFS_UUID_SIZE == 16!" +#endif +#define BTRFS_UUID_KEY_SUBVOL 251 /* for UUIDs assigned to subvols */ +#define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252 /* for UUIDs assigned to + * received subvols */ + +/* * string items are for debugging. They just store a short string of * data in the FS */ |