1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
8 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public
21 * License along with this program; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 021110-1307, USA.
29 struct ocfs2_dx_hinfo
{
34 struct ocfs2_dir_lookup_result
{
35 struct buffer_head
*dl_leaf_bh
; /* Unindexed leaf
37 struct ocfs2_dir_entry
*dl_entry
; /* Target dirent in
40 struct buffer_head
*dl_dx_root_bh
; /* Root of indexed
43 struct buffer_head
*dl_dx_leaf_bh
; /* Indexed leaf block */
44 struct ocfs2_dx_entry
*dl_dx_entry
; /* Target dx_entry in
46 struct ocfs2_dx_hinfo dl_hinfo
; /* Name hash results */
48 struct buffer_head
*dl_prev_leaf_bh
;/* Previous entry in
55 void ocfs2_free_dir_lookup_result(struct ocfs2_dir_lookup_result
*res
);
57 int ocfs2_find_entry(const char *name
, int namelen
,
59 struct ocfs2_dir_lookup_result
*lookup
);
60 int ocfs2_delete_entry(handle_t
*handle
,
62 struct ocfs2_dir_lookup_result
*res
);
63 int __ocfs2_add_entry(handle_t
*handle
,
65 const char *name
, int namelen
,
66 struct inode
*inode
, u64 blkno
,
67 struct buffer_head
*parent_fe_bh
,
68 struct ocfs2_dir_lookup_result
*lookup
);
69 static inline int ocfs2_add_entry(handle_t
*handle
,
70 struct dentry
*dentry
,
71 struct inode
*inode
, u64 blkno
,
72 struct buffer_head
*parent_fe_bh
,
73 struct ocfs2_dir_lookup_result
*lookup
)
75 return __ocfs2_add_entry(handle
, d_inode(dentry
->d_parent
),
76 dentry
->d_name
.name
, dentry
->d_name
.len
,
77 inode
, blkno
, parent_fe_bh
, lookup
);
79 int ocfs2_update_entry(struct inode
*dir
, handle_t
*handle
,
80 struct ocfs2_dir_lookup_result
*res
,
81 struct inode
*new_entry_inode
);
83 int ocfs2_check_dir_for_entry(struct inode
*dir
,
86 int ocfs2_empty_dir(struct inode
*inode
);
88 int ocfs2_find_files_on_disk(const char *name
,
92 struct ocfs2_dir_lookup_result
*res
);
93 int ocfs2_lookup_ino_from_name(struct inode
*dir
, const char *name
,
94 int namelen
, u64
*blkno
);
95 int ocfs2_readdir(struct file
*file
, struct dir_context
*ctx
);
96 int ocfs2_dir_foreach(struct inode
*inode
, struct dir_context
*ctx
);
97 int ocfs2_prepare_dir_for_insert(struct ocfs2_super
*osb
,
99 struct buffer_head
*parent_fe_bh
,
102 struct ocfs2_dir_lookup_result
*lookup
);
103 struct ocfs2_alloc_context
;
104 int ocfs2_fill_new_dir(struct ocfs2_super
*osb
,
106 struct inode
*parent
,
108 struct buffer_head
*fe_bh
,
109 struct ocfs2_alloc_context
*data_ac
,
110 struct ocfs2_alloc_context
*meta_ac
);
112 int ocfs2_dx_dir_truncate(struct inode
*dir
, struct buffer_head
*di_bh
);
114 struct ocfs2_dir_block_trailer
*ocfs2_dir_trailer_from_size(int blocksize
,
116 #endif /* OCFS2_DIR_H */
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