/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2011 STRATO. All rights reserved. */ #ifndef BTRFS_BACKREF_H #define BTRFS_BACKREF_H #include <linux/btrfs.h> #include "ulist.h" #include "extent_io.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); int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical, struct btrfs_path *path, struct btrfs_key *found_key, u64 *flags); int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb, struct btrfs_key *key, 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, bool ignore_offset); int iterate_inodes_from_logical(u64 logical, struct btrfs_fs_info *fs_info, struct btrfs_path *path, iterate_extent_inodes_t *iterate, void *ctx, bool ignore_offset); 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 time_seq, struct ulist **roots, bool ignore_offset); char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, u32 name_len, unsigned long name_off, struct extent_buffer *eb_in, u64 parent, char *dest, u32 size); 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); int btrfs_find_one_extref(struct btrfs_root *root, u64 inode_objectid, u64 start_off, struct btrfs_path *path, struct btrfs_inode_extref **ret_extref, u64 *found_off); int btrfs_check_shared(struct btrfs_root *root, u64 inum, u64 bytenr); int __init btrfs_prelim_ref_init(void); void __cold btrfs_prelim_ref_exit(void); struct prelim_ref { struct rb_node rbnode; u64 root_id; struct btrfs_key key_for_search; int level; int count; struct extent_inode_elem *inode_list; u64 parent; u64 wanted_disk_byte; }; #endif