diff options
Diffstat (limited to 'ctree.h')
| -rw-r--r-- | ctree.h | 38 |
1 files changed, 38 insertions, 0 deletions
@@ -58,6 +58,7 @@ struct btrfs_header { u8 fsid[16]; /* FS specific uuid */ __le64 blocknr; /* which block this node is supposed to live in */ __le64 generation; + __le64 owner; __le16 nritems; __le16 flags; u8 level; @@ -144,12 +145,17 @@ struct btrfs_path { int slots[BTRFS_MAX_LEVEL]; }; +/* values for the type field in btrfs_extent_item */ +#define BTRFS_EXTENT_TREE 1 +#define BTRFS_EXTENT_FILE 2 /* * items in the extent btree are used to record the objectid of the * owner of the block and the number of references */ struct btrfs_extent_item { __le32 refs; + __le64 owner; + u8 type; } __attribute__ ((__packed__)); struct btrfs_inode_timespec { @@ -461,11 +467,32 @@ static inline void btrfs_set_extent_refs(struct btrfs_extent_item *ei, u32 val) ei->refs = cpu_to_le32(val); } +static inline u64 btrfs_extent_owner(struct btrfs_extent_item *ei) +{ + return le64_to_cpu(ei->owner); +} + +static inline void btrfs_set_extent_owner(struct btrfs_extent_item *ei, u64 val) +{ + ei->owner = cpu_to_le64(val); +} + +static inline u8 btrfs_extent_type(struct btrfs_extent_item *ei) +{ + return ei->type; +} + +static inline void btrfs_set_extent_type(struct btrfs_extent_item *ei, u8 val) +{ + ei->type = val; +} + static inline u64 btrfs_node_blockptr(struct btrfs_node *n, int nr) { return le64_to_cpu(n->ptrs[nr].blockptr); } + static inline void btrfs_set_node_blockptr(struct btrfs_node *n, int nr, u64 val) { @@ -624,6 +651,17 @@ static inline void btrfs_set_header_generation(struct btrfs_header *h, h->generation = cpu_to_le64(val); } +static inline u64 btrfs_header_owner(struct btrfs_header *h) +{ + return le64_to_cpu(h->owner); +} + +static inline void btrfs_set_header_owner(struct btrfs_header *h, + u64 val) +{ + h->owner = cpu_to_le64(val); +} + static inline u16 btrfs_header_nritems(struct btrfs_header *h) { return le16_to_cpu(h->nritems); |