| /* |
| * Copyright (C) 2011 STRATO. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public |
| * License v2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public |
| * License along with this program; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 021110-1307, USA. |
| */ |
| |
| #ifndef __BTRFS_BACKREF__ |
| #define __BTRFS_BACKREF__ |
| |
| #include "ioctl.h" |
| #include "ulist.h" |
| |
| #define BTRFS_BACKREF_SEARCH_COMMIT_ROOT ((struct btrfs_trans_handle *)0) |
| |
| struct inode_fs_paths { |
| struct btrfs_path *btrfs_path; |
| struct btrfs_root *fs_root; |
| struct btrfs_data_container *fspath; |
| }; |
| |
| typedef int (iterate_extent_inodes_t)(u64 inum, u64 offset, u64 root, |
| void *ctx); |
| typedef int (iterate_irefs_t)(u64 parent, struct btrfs_inode_ref *iref, |
| struct extent_buffer *eb, void *ctx); |
| |
| int inode_item_info(u64 inum, u64 ioff, struct btrfs_root *fs_root, |
| struct btrfs_path *path); |
| |
| int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical, |
| struct btrfs_path *path, struct btrfs_key *found_key); |
| |
| int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb, |
| struct btrfs_extent_item *ei, u32 item_size, |
| u64 *out_root, u8 *out_level); |
| |
| int iterate_extent_inodes(struct btrfs_fs_info *fs_info, |
| u64 extent_item_objectid, |
| u64 extent_offset, int search_commit_root, |
| iterate_extent_inodes_t *iterate, void *ctx); |
| |
| int iterate_inodes_from_logical(u64 logical, struct btrfs_fs_info *fs_info, |
| struct btrfs_path *path, |
| iterate_extent_inodes_t *iterate, void *ctx); |
| |
| int paths_from_inode(u64 inum, struct inode_fs_paths *ipath); |
| |
| int btrfs_find_all_roots(struct btrfs_trans_handle *trans, |
| struct btrfs_fs_info *fs_info, u64 bytenr, |
| u64 seq, struct ulist **roots); |
| |
| struct btrfs_data_container *init_data_container(u32 total_bytes); |
| struct inode_fs_paths *init_ipath(s32 total_bytes, struct btrfs_root *fs_root, |
| struct btrfs_path *path); |
| void free_ipath(struct inode_fs_paths *ipath); |
| |
| #endif |