diff options
author | Yan <yanzheng@21cn.com> | 2007-12-05 10:41:38 -0500 |
---|---|---|
committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-12-05 10:41:38 -0500 |
commit | 07a4f1b81df6cd9b9e09773f680fc098faed310c (patch) | |
tree | 3543dcbdbe4fd1c153f468d2976bcebc34b72ae7 /ctree.h | |
parent | 1c2b38fe25fe6496d51d41aee7a5a1eb2e2694d8 (diff) |
Update btrfs-progs to better match the kernel
Diffstat (limited to 'ctree.h')
-rw-r--r-- | ctree.h | 64 |
1 files changed, 54 insertions, 10 deletions
@@ -23,9 +23,8 @@ #include "kerncompat.h" #include "radix-tree.h" #include "extent-cache.h" - +struct btrfs_root; struct btrfs_trans_handle; - #define BTRFS_MAGIC "_B2RfS_M" #define BTRFS_ROOT_TREE_OBJECTID 1ULL @@ -102,7 +101,9 @@ struct btrfs_header { (sizeof(struct btrfs_disk_key) + sizeof(u64))) #define __BTRFS_LEAF_DATA_SIZE(bs) ((bs) - sizeof(struct btrfs_header)) #define BTRFS_LEAF_DATA_SIZE(r) (__BTRFS_LEAF_DATA_SIZE(r->leafsize)) - +#define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \ + sizeof(struct btrfs_item) - \ + sizeof(struct btrfs_file_extent_item)) struct btrfs_buffer; /* * the super block basically lists the main trees of the FS @@ -759,6 +760,17 @@ static inline void btrfs_set_root_bytenr(struct btrfs_root_item *item, u64 val) item->bytenr = cpu_to_le64(val); } +static inline u64 btrfs_root_byte_limit(struct btrfs_root_item *item) +{ + return le64_to_cpu(item->byte_limit); +} + +static inline void btrfs_set_root_byte_limit(struct btrfs_root_item *item, + u64 val) +{ + item->byte_limit = cpu_to_le64(val); +} + static inline u8 btrfs_root_level(struct btrfs_root_item *item) { return item->level; @@ -1028,6 +1040,9 @@ static inline void btrfs_set_file_extent_num_bytes(struct #define btrfs_item_ptr(leaf, slot, type) \ ((type *)(btrfs_leaf_data(leaf) + \ btrfs_item_offset((leaf)->items + (slot)))) +#define btrfs_item_ptr_offset(leaf, slot) \ + ((unsigned long)(btrfs_leaf_data(leaf) + \ + btrfs_item_offset_nr(leaf, slot))) static inline u32 btrfs_level_size(struct btrfs_root *root, int level) { @@ -1036,15 +1051,25 @@ static inline u32 btrfs_level_size(struct btrfs_root *root, int level) return root->nodesize; } int btrfs_comp_keys(struct btrfs_disk_key *disk, struct btrfs_key *k2); -int btrfs_extend_item(struct btrfs_trans_handle *trans, struct btrfs_root - *root, struct btrfs_path *path, u32 data_size); struct btrfs_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, u32 blocksize); int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_buffer *buf); +int btrfs_inc_root_ref(struct btrfs_trans_handle *trans, + struct btrfs_root *root); int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytenr, u64 num_bytes, int pin); +int btrfs_cow_block(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct btrfs_buffer *buf, + struct btrfs_buffer *parent, int parent_slot, + struct btrfs_buffer **cow_ret); +int btrfs_extend_item(struct btrfs_trans_handle *trans, struct btrfs_root + *root, struct btrfs_path *path, u32 data_size); +int btrfs_truncate_item(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + struct btrfs_path *path, + u32 new_size, int from_end); int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_key *key, struct btrfs_path *p, int ins_len, int cow); @@ -1076,11 +1101,16 @@ int btrfs_find_last_root(struct btrfs_root *root, u64 objectid, struct int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, char *name, int name_len, u64 dir, struct btrfs_key *location, u8 type); -int btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root - *root, struct btrfs_path *path, u64 dir, char *name, - int name_len, int mod); -int btrfs_match_dir_item_name(struct btrfs_root *root, struct btrfs_path *path, - char *name, int name_len); +struct btrfs_dir_item *btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct btrfs_path *path, + u64 dir, char *name, int name_len, int mod); +struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_root *root, + struct btrfs_path *path, + const char *name, int name_len); +int btrfs_delete_one_dir_name(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + struct btrfs_path *path, + struct btrfs_dir_item *di); int btrfs_find_free_objectid(struct btrfs_trans_handle *trans, struct btrfs_root *fs_root, u64 dirid, u64 *objectid); @@ -1097,4 +1127,18 @@ int btrfs_insert_block_group(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_key *key, struct btrfs_block_group_item *bi); +/* file-item.c */ +int btrfs_insert_file_extent(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + u64 objectid, u64 pos, u64 offset, + u64 disk_num_bytes, u64 num_bytes); +int btrfs_insert_inline_file_extent(struct btrfs_trans_handle *trans, + struct btrfs_root *root, u64 objectid, + u64 offset, char *buffer, size_t size); +int btrfs_lookup_csum(struct btrfs_trans_handle *trans, struct btrfs_root + *root, struct btrfs_path *path, u64 objectid, + u64 offset, int cow, struct btrfs_csum_item **item_ret); +int btrfs_csum_file_block(struct btrfs_trans_handle *trans, struct btrfs_root + *root, struct btrfs_inode_item *inode, + u64 objectid, u64 offset, char *data, size_t len); #endif |