Commit | Line | Data |
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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 | ||
995946dd MX |
33 | static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info, |
34 | struct btrfs_trans_handle *trans) | |
35 | { | |
20c7bcec | 36 | WRITE_ONCE(fs_info->last_trans_log_full_commit, trans->transid); |
995946dd MX |
37 | } |
38 | ||
39 | static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info, | |
40 | struct btrfs_trans_handle *trans) | |
41 | { | |
20c7bcec | 42 | return READ_ONCE(fs_info->last_trans_log_full_commit) == |
995946dd MX |
43 | trans->transid; |
44 | } | |
45 | ||
e02119d5 | 46 | int btrfs_sync_log(struct btrfs_trans_handle *trans, |
8b050d35 | 47 | struct btrfs_root *root, struct btrfs_log_ctx *ctx); |
e02119d5 | 48 | int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root); |
4a500fd1 YZ |
49 | int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans, |
50 | struct btrfs_fs_info *fs_info); | |
e02119d5 CM |
51 | int btrfs_recover_log_trees(struct btrfs_root *tree_root); |
52 | int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans, | |
e5b84f7a | 53 | struct dentry *dentry, |
49dae1bc FM |
54 | const loff_t start, |
55 | const loff_t end, | |
8b050d35 | 56 | struct btrfs_log_ctx *ctx); |
e02119d5 CM |
57 | int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans, |
58 | struct btrfs_root *root, | |
59 | const char *name, int name_len, | |
49f34d1f | 60 | struct btrfs_inode *dir, u64 index); |
e02119d5 CM |
61 | int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans, |
62 | struct btrfs_root *root, | |
63 | const char *name, int name_len, | |
a491abb2 | 64 | struct btrfs_inode *inode, u64 dirid); |
143bede5 | 65 | void btrfs_end_log_trans(struct btrfs_root *root); |
45128b08 | 66 | void btrfs_pin_log_trans(struct btrfs_root *root); |
12fcfd22 | 67 | void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans, |
4176bdbf | 68 | struct btrfs_inode *dir, struct btrfs_inode *inode, |
12fcfd22 | 69 | int for_rename); |
1ec9a1ae | 70 | void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans, |
43663557 | 71 | struct btrfs_inode *dir); |
d4682ba0 FM |
72 | /* Return values for btrfs_log_new_name() */ |
73 | enum { | |
74 | BTRFS_DONT_NEED_TRANS_COMMIT, | |
75 | BTRFS_NEED_TRANS_COMMIT, | |
76 | BTRFS_DONT_NEED_LOG_SYNC, | |
77 | BTRFS_NEED_LOG_SYNC, | |
78 | }; | |
12fcfd22 | 79 | int btrfs_log_new_name(struct btrfs_trans_handle *trans, |
9ca5fbfb | 80 | struct btrfs_inode *inode, struct btrfs_inode *old_dir, |
d4682ba0 FM |
81 | struct dentry *parent, |
82 | bool sync_log, struct btrfs_log_ctx *ctx); | |
9888c340 | 83 | |
e02119d5 | 84 | #endif |