68 строки
2.3 KiB
C
68 строки
2.3 KiB
C
/*
|
|
* 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"
|
|
|
|
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,
|
|
struct btrfs_path *path,
|
|
u64 extent_item_objectid,
|
|
u64 extent_offset,
|
|
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 num_bytes, 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
|