summaryrefslogtreecommitdiff
path: root/ctree.h
diff options
context:
space:
mode:
Diffstat (limited to 'ctree.h')
-rw-r--r--ctree.h23
1 files changed, 18 insertions, 5 deletions
diff --git a/ctree.h b/ctree.h
index f9c49d6..abc20e2 100644
--- a/ctree.h
+++ b/ctree.h
@@ -330,6 +330,7 @@ static inline unsigned long btrfs_chunk_item_size(int num_stripes)
#define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33)
#define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34)
#define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35)
+#define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36)
#define BTRFS_BACKREF_REV_MAX 256
#define BTRFS_BACKREF_REV_SHIFT 56
@@ -454,8 +455,9 @@ struct btrfs_super_block {
__le64 cache_generation;
__le64 uuid_tree_generation;
+ u8 metadata_uuid[BTRFS_FSID_SIZE];
/* future expansion */
- __le64 reserved[30];
+ __le64 reserved[28];
u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE];
struct btrfs_root_backup super_roots[BTRFS_NUM_BACKUP_ROOTS];
} __attribute__ ((__packed__));
@@ -489,6 +491,7 @@ struct btrfs_super_block {
#define BTRFS_FEATURE_INCOMPAT_RAID56 (1ULL << 7)
#define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA (1ULL << 8)
#define BTRFS_FEATURE_INCOMPAT_NO_HOLES (1ULL << 9)
+#define BTRFS_FEATURE_INCOMPAT_METADATA_UUID (1ULL << 10)
#define BTRFS_FEATURE_COMPAT_SUPP 0ULL
@@ -511,7 +514,8 @@ struct btrfs_super_block {
BTRFS_FEATURE_INCOMPAT_RAID56 | \
BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS | \
BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA | \
- BTRFS_FEATURE_INCOMPAT_NO_HOLES)
+ BTRFS_FEATURE_INCOMPAT_NO_HOLES | \
+ BTRFS_FEATURE_INCOMPAT_METADATA_UUID)
/*
* A leaf is full of items. offset and size tell us where to find
@@ -1089,8 +1093,6 @@ struct btrfs_block_group_cache {
struct btrfs_device;
struct btrfs_fs_devices;
struct btrfs_fs_info {
- u8 fsid[BTRFS_FSID_SIZE];
- u8 *new_fsid;
u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
u8 *new_chunk_tree_uuid;
struct btrfs_root *fs_root;
@@ -1101,6 +1103,7 @@ struct btrfs_fs_info {
struct btrfs_root *csum_root;
struct btrfs_root *quota_root;
struct btrfs_root *free_space_root;
+ struct btrfs_root *uuid_root;
struct rb_root fs_root_tree;
@@ -2720,6 +2723,10 @@ int btrfs_insert_xattr_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root, const char *name,
u16 name_len, const void *data, u16 data_len,
u64 dir);
+struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_root *root,
+ struct btrfs_path *path,
+ const char *name, int name_len);
+
/* inode-map.c */
int btrfs_find_free_objectid(struct btrfs_trans_handle *trans,
struct btrfs_root *fs_root,
@@ -2774,11 +2781,15 @@ int btrfs_csum_truncate(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct btrfs_path *path,
u64 isize);
-/* uuid-tree.c */
+/* uuid-tree.c, interface for mounted mounted filesystem */
int btrfs_lookup_uuid_subvol_item(int fd, const u8 *uuid, u64 *subvol_id);
int btrfs_lookup_uuid_received_subvol_item(int fd, const u8 *uuid,
u64 *subvol_id);
+/* uuid-tree.c, interface for unmounte filesystem */
+int btrfs_uuid_tree_add(struct btrfs_trans_handle *trans, u8 *uuid, u8 type,
+ u64 subvol_id_cpu);
+
static inline int is_fstree(u64 rootid)
{
if (rootid == BTRFS_FS_TREE_OBJECTID ||
@@ -2787,6 +2798,8 @@ static inline int is_fstree(u64 rootid)
return 0;
}
+void btrfs_uuid_to_key(const u8 *uuid, u64 *key_objectid, u64 *key_offset);
+
/* inode.c */
int check_dir_conflict(struct btrfs_root *root, char *name, int namelen,
u64 dir, u64 index);