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 struct list_head list
;
35 static inline void btrfs_init_log_ctx(struct btrfs_log_ctx
*ctx
)
40 INIT_LIST_HEAD(&ctx
->list
);
43 static inline void btrfs_set_log_full_commit(struct btrfs_fs_info
*fs_info
,
44 struct btrfs_trans_handle
*trans
)
46 ACCESS_ONCE(fs_info
->last_trans_log_full_commit
) = trans
->transid
;
49 static inline int btrfs_need_log_full_commit(struct btrfs_fs_info
*fs_info
,
50 struct btrfs_trans_handle
*trans
)
52 return ACCESS_ONCE(fs_info
->last_trans_log_full_commit
) ==
56 int btrfs_sync_log(struct btrfs_trans_handle
*trans
,
57 struct btrfs_root
*root
, struct btrfs_log_ctx
*ctx
);
58 int btrfs_free_log(struct btrfs_trans_handle
*trans
, struct btrfs_root
*root
);
59 int btrfs_free_log_root_tree(struct btrfs_trans_handle
*trans
,
60 struct btrfs_fs_info
*fs_info
);
61 int btrfs_recover_log_trees(struct btrfs_root
*tree_root
);
62 int btrfs_log_dentry_safe(struct btrfs_trans_handle
*trans
,
63 struct btrfs_root
*root
, struct dentry
*dentry
,
66 struct btrfs_log_ctx
*ctx
);
67 int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle
*trans
,
68 struct btrfs_root
*root
,
69 const char *name
, int name_len
,
70 struct inode
*dir
, u64 index
);
71 int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle
*trans
,
72 struct btrfs_root
*root
,
73 const char *name
, int name_len
,
74 struct inode
*inode
, u64 dirid
);
75 void btrfs_end_log_trans(struct btrfs_root
*root
);
76 int btrfs_pin_log_trans(struct btrfs_root
*root
);
77 void btrfs_record_unlink_dir(struct btrfs_trans_handle
*trans
,
78 struct inode
*dir
, struct inode
*inode
,
80 int btrfs_log_new_name(struct btrfs_trans_handle
*trans
,
81 struct inode
*inode
, struct inode
*old_dir
,
82 struct dentry
*parent
);