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9888c340 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
e02119d5 CM |
2 | /* |
3 | * Copyright (C) 2008 Oracle. All rights reserved. | |
e02119d5 CM |
4 | */ |
5 | ||
9888c340 DS |
6 | #ifndef BTRFS_TREE_LOG_H |
7 | #define BTRFS_TREE_LOG_H | |
e02119d5 | 8 | |
995946dd MX |
9 | #include "ctree.h" |
10 | #include "transaction.h" | |
11 | ||
257c62e1 CM |
12 | /* return value for btrfs_log_dentry_safe that means we don't need to log it at all */ |
13 | #define BTRFS_NO_LOG_SYNC 256 | |
14 | ||
8b050d35 MX |
15 | struct btrfs_log_ctx { |
16 | int log_ret; | |
d1433deb | 17 | int log_transid; |
2f2ff0ee | 18 | bool log_new_dentries; |
28a23593 | 19 | struct inode *inode; |
8b050d35 MX |
20 | struct list_head list; |
21 | }; | |
22 | ||
28a23593 FM |
23 | static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx, |
24 | struct inode *inode) | |
8b050d35 MX |
25 | { |
26 | ctx->log_ret = 0; | |
d1433deb | 27 | ctx->log_transid = 0; |
2f2ff0ee | 28 | ctx->log_new_dentries = false; |
28a23593 | 29 | ctx->inode = inode; |
8b050d35 MX |
30 | INIT_LIST_HEAD(&ctx->list); |
31 | } | |
32 | ||
90787766 | 33 | static inline void btrfs_set_log_full_commit(struct btrfs_trans_handle *trans) |
995946dd | 34 | { |
90787766 | 35 | WRITE_ONCE(trans->fs_info->last_trans_log_full_commit, trans->transid); |
995946dd MX |
36 | } |
37 | ||
4884b8e8 | 38 | static inline int btrfs_need_log_full_commit(struct btrfs_trans_handle *trans) |
995946dd | 39 | { |
4884b8e8 | 40 | return READ_ONCE(trans->fs_info->last_trans_log_full_commit) == |
995946dd MX |
41 | trans->transid; |
42 | } | |
43 | ||
e02119d5 | 44 | int btrfs_sync_log(struct btrfs_trans_handle *trans, |
8b050d35 | 45 | struct btrfs_root *root, struct btrfs_log_ctx *ctx); |
e02119d5 | 46 | int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root); |
4a500fd1 YZ |
47 | int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans, |
48 | struct btrfs_fs_info *fs_info); | |
e02119d5 CM |
49 | int btrfs_recover_log_trees(struct btrfs_root *tree_root); |
50 | int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans, | |
e5b84f7a | 51 | struct dentry *dentry, |
49dae1bc FM |
52 | const loff_t start, |
53 | const loff_t end, | |
8b050d35 | 54 | struct btrfs_log_ctx *ctx); |
e02119d5 CM |
55 | int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans, |
56 | struct btrfs_root *root, | |
57 | const char *name, int name_len, | |
49f34d1f | 58 | struct btrfs_inode *dir, u64 index); |
e02119d5 CM |
59 | int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans, |
60 | struct btrfs_root *root, | |
61 | const char *name, int name_len, | |
a491abb2 | 62 | struct btrfs_inode *inode, u64 dirid); |
143bede5 | 63 | void btrfs_end_log_trans(struct btrfs_root *root); |
45128b08 | 64 | void btrfs_pin_log_trans(struct btrfs_root *root); |
12fcfd22 | 65 | void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans, |
4176bdbf | 66 | struct btrfs_inode *dir, struct btrfs_inode *inode, |
12fcfd22 | 67 | int for_rename); |
1ec9a1ae | 68 | void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans, |
43663557 | 69 | struct btrfs_inode *dir); |
d4682ba0 FM |
70 | /* Return values for btrfs_log_new_name() */ |
71 | enum { | |
72 | BTRFS_DONT_NEED_TRANS_COMMIT, | |
73 | BTRFS_NEED_TRANS_COMMIT, | |
74 | BTRFS_DONT_NEED_LOG_SYNC, | |
75 | BTRFS_NEED_LOG_SYNC, | |
76 | }; | |
12fcfd22 | 77 | int btrfs_log_new_name(struct btrfs_trans_handle *trans, |
9ca5fbfb | 78 | struct btrfs_inode *inode, struct btrfs_inode *old_dir, |
d4682ba0 FM |
79 | struct dentry *parent, |
80 | bool sync_log, struct btrfs_log_ctx *ctx); | |
9888c340 | 81 | |
e02119d5 | 82 | #endif |