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 59