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 #include <linux/types.h>
  10 #include <linux/rbtree_types.h>
  11
  12 struct btrfs_fs_info;
  13 struct btrfs_ref;
  14
  15 #ifdef CONFIG_BTRFS_FS_REF_VERIFY
  16
  17 #include <linux/spinlock.h>
  18
  19 int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info);
  20 void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info);
  21 int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info,
  22                        struct btrfs_ref *generic_ref);
  23 void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info, u64 start,
  24                                u64 len);
  25
  26 static inline void btrfs_init_ref_verify(struct btrfs_fs_info *fs_info)
  27 {
  28         spin_lock_init(&fs_info->ref_verify_lock);
  29         fs_info->block_tree = RB_ROOT;
  30 }
  31 #else
  32 static inline int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info)
  33 {
  34         return 0;
  35 }
  36
  37 static inline void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info)
  38 {
  39 }
  40
  41 static inline int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info,
  42                        struct btrfs_ref *generic_ref)
  43 {
  44         return 0;
  45 }
  46
  47 static inline void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info,
  48                                              u64 start, u64 len)
  49 {
  50 }
  51
  52 static inline void btrfs_init_ref_verify(struct btrfs_fs_info *fs_info)
  53 {
  54 }
  55
  56 #endif /* CONFIG_BTRFS_FS_REF_VERIFY */
  57
  58 #endif