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e02119d5 CM |
1 | /* |
2 | * Copyright (C) 2008 Oracle. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public | |
6 | * License v2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public | |
14 | * License along with this program; if not, write to the | |
15 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
16 | * Boston, MA 021110-1307, USA. | |
17 | */ | |
18 | ||
19 | #ifndef __TREE_LOG_ | |
20 | #define __TREE_LOG_ | |
21 | ||
995946dd MX |
22 | #include "ctree.h" |
23 | #include "transaction.h" | |
24 | ||
257c62e1 CM |
25 | /* return value for btrfs_log_dentry_safe that means we don't need to log it at all */ |
26 | #define BTRFS_NO_LOG_SYNC 256 | |
27 | ||
8b050d35 MX |
28 | struct btrfs_log_ctx { |
29 | int log_ret; | |
d1433deb | 30 | int log_transid; |
8b050d35 MX |
31 | struct list_head list; |
32 | }; | |
33 | ||
34 | static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx) | |
35 | { | |
36 | ctx->log_ret = 0; | |
d1433deb | 37 | ctx->log_transid = 0; |
8b050d35 MX |
38 | INIT_LIST_HEAD(&ctx->list); |
39 | } | |
40 | ||
995946dd MX |
41 | static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info, |
42 | struct btrfs_trans_handle *trans) | |
43 | { | |
44 | ACCESS_ONCE(fs_info->last_trans_log_full_commit) = trans->transid; | |
45 | } | |
46 | ||
47 | static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info, | |
48 | struct btrfs_trans_handle *trans) | |
49 | { | |
50 | return ACCESS_ONCE(fs_info->last_trans_log_full_commit) == | |
51 | trans->transid; | |
52 | } | |
53 | ||
e02119d5 | 54 | int btrfs_sync_log(struct btrfs_trans_handle *trans, |
8b050d35 | 55 | struct btrfs_root *root, struct btrfs_log_ctx *ctx); |
e02119d5 | 56 | int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root); |
4a500fd1 YZ |
57 | int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans, |
58 | struct btrfs_fs_info *fs_info); | |
e02119d5 CM |
59 | int btrfs_recover_log_trees(struct btrfs_root *tree_root); |
60 | int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans, | |
8b050d35 MX |
61 | struct btrfs_root *root, struct dentry *dentry, |
62 | struct btrfs_log_ctx *ctx); | |
e02119d5 CM |
63 | int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans, |
64 | struct btrfs_root *root, | |
65 | const char *name, int name_len, | |
66 | struct inode *dir, u64 index); | |
67 | int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans, | |
68 | struct btrfs_root *root, | |
69 | const char *name, int name_len, | |
70 | struct inode *inode, u64 dirid); | |
143bede5 | 71 | void btrfs_end_log_trans(struct btrfs_root *root); |
12fcfd22 | 72 | int btrfs_pin_log_trans(struct btrfs_root *root); |
12fcfd22 CM |
73 | void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans, |
74 | struct inode *dir, struct inode *inode, | |
75 | int for_rename); | |
76 | int btrfs_log_new_name(struct btrfs_trans_handle *trans, | |
77 | struct inode *inode, struct inode *old_dir, | |
78 | struct dentry *parent); | |
e02119d5 | 79 | #endif |