projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c8ede16 JB |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | ||
| 3 | #ifndef BTRFS_FILE_ITEM_H | |
| 4 | #define BTRFS_FILE_ITEM_H | |
| 5 | ||
| 6bfd0ffa JB |
6 | #include "accessors.h" |
| 7 | ||
| 8 | #define BTRFS_FILE_EXTENT_INLINE_DATA_START \ | |
| 9 | (offsetof(struct btrfs_file_extent_item, disk_bytenr)) | |
| 10 | ||
| 11 | static inline u32 BTRFS_MAX_INLINE_DATA_SIZE(const struct btrfs_fs_info *info) | |
| 12 | { | |
| 13 | return BTRFS_MAX_ITEM_SIZE(info) - BTRFS_FILE_EXTENT_INLINE_DATA_START; | |
| 14 | } | |
| 15 | ||
| 16 | /* | |
| 17 | * Return the number of bytes used by the item on disk, minus the size of any | |
| 18 | * extent headers. If a file is compressed on disk, this is the compressed | |
| 19 | * size. | |
| 20 | */ | |
| 21 | static inline u32 btrfs_file_extent_inline_item_len( | |
| 22 | const struct extent_buffer *eb, | |
| 23 | int nr) | |
| 24 | { | |
| 25 | return btrfs_item_size(eb, nr) - BTRFS_FILE_EXTENT_INLINE_DATA_START; | |
| 26 | } | |
| 27 | ||
| 28 | static inline unsigned long btrfs_file_extent_inline_start( | |
| 29 | const struct btrfs_file_extent_item *e) | |
| 30 | { | |
| 31 | return (unsigned long)e + BTRFS_FILE_EXTENT_INLINE_DATA_START; | |
| 32 | } | |
| 33 | ||
| 34 | static inline u32 btrfs_file_extent_calc_inline_size(u32 datasize) | |
| 35 | { | |
| 36 | return BTRFS_FILE_EXTENT_INLINE_DATA_START + datasize; | |
| 37 | } | |
| 38 | ||
| 7c8ede16 JB |
39 | int btrfs_del_csums(struct btrfs_trans_handle *trans, |
| 40 | struct btrfs_root *root, u64 bytenr, u64 len); | |
| 4ae2edf1 | 41 | blk_status_t btrfs_lookup_bio_sums(struct btrfs_bio *bbio); |
| 7c8ede16 JB |
42 | int btrfs_insert_hole_extent(struct btrfs_trans_handle *trans, |
| 43 | struct btrfs_root *root, u64 objectid, u64 pos, | |
| 44 | u64 num_bytes); | |
| 45 | int btrfs_lookup_file_extent(struct btrfs_trans_handle *trans, | |
| 46 | struct btrfs_root *root, | |
| 47 | struct btrfs_path *path, u64 objectid, | |
| 48 | u64 bytenr, int mod); | |
| 49 | int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans, | |
| 50 | struct btrfs_root *root, | |
| 51 | struct btrfs_ordered_sum *sums); | |
| f8c44673 CH |
52 | blk_status_t btrfs_csum_one_bio(struct btrfs_bio *bbio); |
| 53 | int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, | |
| 54 | struct list_head *list, int search_commit, | |
| 55 | bool nowait); | |
| 97e38239 QW |
56 | int btrfs_lookup_csums_list(struct btrfs_root *root, u64 start, u64 end, |
| 57 | struct list_head *list, int search_commit, | |
| 58 | bool nowait); | |
| 59 | int btrfs_lookup_csums_bitmap(struct btrfs_root *root, u64 start, u64 end, | |
| b9795475 QW |
60 | u8 *csum_buf, unsigned long *csum_bitmap, |
| 61 | bool search_commit); | |
| 7c8ede16 JB |
62 | void btrfs_extent_item_to_extent_map(struct btrfs_inode *inode, |
| 63 | const struct btrfs_path *path, | |
| 64 | struct btrfs_file_extent_item *fi, | |
| 7c8ede16 JB |
65 | struct extent_map *em); |
| 66 | int btrfs_inode_clear_file_extent_range(struct btrfs_inode *inode, u64 start, | |
| 67 | u64 len); | |
| 68 | int btrfs_inode_set_file_extent_range(struct btrfs_inode *inode, u64 start, u64 len); | |
| 69 | void btrfs_inode_safe_disk_i_size_write(struct btrfs_inode *inode, u64 new_i_size); | |
| 70 | u64 btrfs_file_extent_end(const struct btrfs_path *path); | |
| 71 | ||
| 72 | #endif |