1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (C) 2008 Oracle.  All rights reserved.
 4 */
 5
 6#ifndef BTRFS_TREE_LOG_H
 7#define BTRFS_TREE_LOG_H
 8
 9#include "ctree.h"
10#include "transaction.h"
11
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
15struct btrfs_log_ctx {
16	int log_ret;
17	int log_transid;
 
18	bool log_new_dentries;
19	struct inode *inode;
20	struct list_head list;
21};
22
23static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx,
24				      struct inode *inode)
25{
26	ctx->log_ret = 0;
27	ctx->log_transid = 0;
 
28	ctx->log_new_dentries = false;
29	ctx->inode = inode;
30	INIT_LIST_HEAD(&ctx->list);
31}
32
33static inline void btrfs_set_log_full_commit(struct btrfs_trans_handle *trans)
 
34{
35	WRITE_ONCE(trans->fs_info->last_trans_log_full_commit, trans->transid);
36}
37
38static inline int btrfs_need_log_full_commit(struct btrfs_trans_handle *trans)
 
39{
40	return READ_ONCE(trans->fs_info->last_trans_log_full_commit) ==
41		trans->transid;
42}
43
44int btrfs_sync_log(struct btrfs_trans_handle *trans,
45		   struct btrfs_root *root, struct btrfs_log_ctx *ctx);
46int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root);
47int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans,
48			     struct btrfs_fs_info *fs_info);
49int btrfs_recover_log_trees(struct btrfs_root *tree_root);
50int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
51			  struct dentry *dentry,
52			  const loff_t start,
53			  const loff_t end,
54			  struct btrfs_log_ctx *ctx);
55int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
56				 struct btrfs_root *root,
57				 const char *name, int name_len,
58				 struct btrfs_inode *dir, u64 index);
59int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
60			       struct btrfs_root *root,
61			       const char *name, int name_len,
62			       struct btrfs_inode *inode, u64 dirid);
63void btrfs_end_log_trans(struct btrfs_root *root);
64void btrfs_pin_log_trans(struct btrfs_root *root);
65void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
66			     struct btrfs_inode *dir, struct btrfs_inode *inode,
67			     int for_rename);
68void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans,
69				   struct btrfs_inode *dir);
70/* Return values for btrfs_log_new_name() */
71enum {
72	BTRFS_DONT_NEED_TRANS_COMMIT,
73	BTRFS_NEED_TRANS_COMMIT,
74	BTRFS_DONT_NEED_LOG_SYNC,
75	BTRFS_NEED_LOG_SYNC,
76};
77int btrfs_log_new_name(struct btrfs_trans_handle *trans,
78			struct btrfs_inode *inode, struct btrfs_inode *old_dir,
79			struct dentry *parent,
80			bool sync_log, struct btrfs_log_ctx *ctx);
81
82#endif

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (C) 2008 Oracle.  All rights reserved.
 4 */
 5
 6#ifndef BTRFS_TREE_LOG_H
 7#define BTRFS_TREE_LOG_H
 8
 9#include "ctree.h"
10#include "transaction.h"
11
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
15struct btrfs_log_ctx {
16	int log_ret;
17	int log_transid;
18	int io_err;
19	bool log_new_dentries;
20	struct inode *inode;
21	struct list_head list;
22};
23
24static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx,
25				      struct inode *inode)
26{
27	ctx->log_ret = 0;
28	ctx->log_transid = 0;
29	ctx->io_err = 0;
30	ctx->log_new_dentries = false;
31	ctx->inode = inode;
32	INIT_LIST_HEAD(&ctx->list);
33}
34
35static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info,
36					     struct btrfs_trans_handle *trans)
37{
38	WRITE_ONCE(fs_info->last_trans_log_full_commit, trans->transid);
39}
40
41static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info,
42					     struct btrfs_trans_handle *trans)
43{
44	return READ_ONCE(fs_info->last_trans_log_full_commit) ==
45		trans->transid;
46}
47
48int btrfs_sync_log(struct btrfs_trans_handle *trans,
49		   struct btrfs_root *root, struct btrfs_log_ctx *ctx);
50int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root);
51int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans,
52			     struct btrfs_fs_info *fs_info);
53int btrfs_recover_log_trees(struct btrfs_root *tree_root);
54int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
55			  struct dentry *dentry,
56			  const loff_t start,
57			  const loff_t end,
58			  struct btrfs_log_ctx *ctx);
59int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
60				 struct btrfs_root *root,
61				 const char *name, int name_len,
62				 struct btrfs_inode *dir, u64 index);
63int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
64			       struct btrfs_root *root,
65			       const char *name, int name_len,
66			       struct btrfs_inode *inode, u64 dirid);
67void btrfs_end_log_trans(struct btrfs_root *root);
68int btrfs_pin_log_trans(struct btrfs_root *root);
69void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
70			     struct btrfs_inode *dir, struct btrfs_inode *inode,
71			     int for_rename);
72void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans,
73				   struct btrfs_inode *dir);
 
 
 
 
 
 
 
74int btrfs_log_new_name(struct btrfs_trans_handle *trans,
75			struct btrfs_inode *inode, struct btrfs_inode *old_dir,
76			struct dentry *parent);
 
77
78#endif