fs/btrfs/ref-verify.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2014 Facebook.  All rights reserved.
   4  */
   5
   6 #ifndef BTRFS_REF_VERIFY_H
   7 #define BTRFS_REF_VERIFY_H
   8
   9 #ifdef CONFIG_BTRFS_FS_REF_VERIFY
  10 int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info);
  11 void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info);
  12 int btrfs_ref_tree_mod(struct btrfs_root *root, u64 bytenr, u64 num_bytes,
  13                        u64 parent, u64 ref_root, u64 owner, u64 offset,
  14                        int action);
  15 void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info, u64 start,
  16                                u64 len);
  17
  18 static inline void btrfs_init_ref_verify(struct btrfs_fs_info *fs_info)
  19 {
  20         spin_lock_init(&fs_info->ref_verify_lock);
  21         fs_info->block_tree = RB_ROOT;
  22 }
  23 #else
  24 static inline int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info)
  25 {
  26         return 0;
  27 }
  28
  29 static inline void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info)
  30 {
  31 }
  32
  33 static inline int btrfs_ref_tree_mod(struct btrfs_root *root, u64 bytenr,
  34                                      u64 num_bytes, u64 parent, u64 ref_root,
  35                                      u64 owner, u64 offset, int action)
  36 {
  37         return 0;
  38 }
  39
  40 static inline void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info,
  41                                              u64 start, u64 len)
  42 {
  43 }
  44
  45 static inline void btrfs_init_ref_verify(struct btrfs_fs_info *fs_info)
  46 {
  47 }
  48
  49 #endif /* CONFIG_BTRFS_FS_REF_VERIFY */
  50
  51 #endif