projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a542ad1b JS |
1 | /* |
| 2 | * Copyright (C) 2011 STRATO. All rights reserved. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public | |
| 6 | * License v2 as published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, | |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 11 | * General Public License for more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU General Public | |
| 14 | * License along with this program; if not, write to the | |
| 15 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 16 | * Boston, MA 021110-1307, USA. | |
| 17 | */ | |
| 18 | ||
| 19 | #ifndef __BTRFS_BACKREF__ | |
| 20 | #define __BTRFS_BACKREF__ | |
| 21 | ||
| 22 | #include "ioctl.h" | |
| 8da6d581 | 23 | #include "ulist.h" |
| a542ad1b | 24 | |
| 7a3ae2f8 JS |
25 | #define BTRFS_BACKREF_SEARCH_COMMIT_ROOT ((struct btrfs_trans_handle *)0) |
| 26 | ||
| a542ad1b JS |
27 | struct inode_fs_paths { |
| 28 | struct btrfs_path *btrfs_path; | |
| 29 | struct btrfs_root *fs_root; | |
| 30 | struct btrfs_data_container *fspath; | |
| 31 | }; | |
| 32 | ||
| 33 | typedef int (iterate_extent_inodes_t)(u64 inum, u64 offset, u64 root, | |
| 34 | void *ctx); | |
| 35 | typedef int (iterate_irefs_t)(u64 parent, struct btrfs_inode_ref *iref, | |
| 36 | struct extent_buffer *eb, void *ctx); | |
| 37 | ||
| 38 | int inode_item_info(u64 inum, u64 ioff, struct btrfs_root *fs_root, | |
| 39 | struct btrfs_path *path); | |
| 40 | ||
| 41 | int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical, | |
| 42 | struct btrfs_path *path, struct btrfs_key *found_key); | |
| 43 | ||
| 44 | int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb, | |
| 45 | struct btrfs_extent_item *ei, u32 item_size, | |
| 46 | u64 *out_root, u8 *out_level); | |
| 47 | ||
| 48 | int iterate_extent_inodes(struct btrfs_fs_info *fs_info, | |
| a542ad1b | 49 | u64 extent_item_objectid, |
| 7a3ae2f8 | 50 | u64 extent_offset, int search_commit_root, |
| a542ad1b JS |
51 | iterate_extent_inodes_t *iterate, void *ctx); |
| 52 | ||
| 53 | int iterate_inodes_from_logical(u64 logical, struct btrfs_fs_info *fs_info, | |
| 54 | struct btrfs_path *path, | |
| 55 | iterate_extent_inodes_t *iterate, void *ctx); | |
| 56 | ||
| 57 | int paths_from_inode(u64 inum, struct inode_fs_paths *ipath); | |
| 58 | ||
| 8da6d581 JS |
59 | int btrfs_find_all_roots(struct btrfs_trans_handle *trans, |
| 60 | struct btrfs_fs_info *fs_info, u64 bytenr, | |
| 61 | u64 num_bytes, u64 seq, struct ulist **roots); | |
| 62 | ||
| a542ad1b JS |
63 | struct btrfs_data_container *init_data_container(u32 total_bytes); |
| 64 | struct inode_fs_paths *init_ipath(s32 total_bytes, struct btrfs_root *fs_root, | |
| 65 | struct btrfs_path *path); | |
| 66 | void free_ipath(struct inode_fs_paths *ipath); | |
| 67 | ||
| 68 | #endif |