2 * Copyright (C) 2008 Oracle. All rights reserved.
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.
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.
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.
23 #include "transaction.h"
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
28 struct btrfs_log_ctx {
32 bool log_new_dentries;
34 struct list_head list;
37 static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx,
43 ctx->log_new_dentries = false;
45 INIT_LIST_HEAD(&ctx->list);
48 static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info,
49 struct btrfs_trans_handle *trans)
51 ACCESS_ONCE(fs_info->last_trans_log_full_commit) = trans->transid;
54 static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info,
55 struct btrfs_trans_handle *trans)
57 return ACCESS_ONCE(fs_info->last_trans_log_full_commit) ==
61 int btrfs_sync_log(struct btrfs_trans_handle *trans,
62 struct btrfs_root *root, struct btrfs_log_ctx *ctx);
63 int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root);
64 int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans,
65 struct btrfs_fs_info *fs_info);
66 int btrfs_recover_log_trees(struct btrfs_root *tree_root);
67 int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
68 struct btrfs_root *root, struct dentry *dentry,
71 struct btrfs_log_ctx *ctx);
72 int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
73 struct btrfs_root *root,
74 const char *name, int name_len,
75 struct inode *dir, u64 index);
76 int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
77 struct btrfs_root *root,
78 const char *name, int name_len,
79 struct inode *inode, u64 dirid);
80 void btrfs_end_log_trans(struct btrfs_root *root);
81 int btrfs_pin_log_trans(struct btrfs_root *root);
82 void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
83 struct inode *dir, struct inode *inode,
85 void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans,
87 int btrfs_log_new_name(struct btrfs_trans_handle *trans,
88 struct inode *inode, struct inode *old_dir,
89 struct dentry *parent);