diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/xfs/xfs_dir2.h |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'fs/xfs/xfs_dir2.h')
-rw-r--r-- | fs/xfs/xfs_dir2.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h new file mode 100644 index 000000000000..8f4fc7f23bcd --- /dev/null +++ b/fs/xfs/xfs_dir2.h | |||
@@ -0,0 +1,109 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms of version 2 of the GNU General Public License as | ||
6 | * published by the Free Software Foundation. | ||
7 | * | ||
8 | * This program is distributed in the hope that it would be useful, but | ||
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
11 | * | ||
12 | * Further, this software is distributed without any warranty that it is | ||
13 | * free of the rightful claim of any third person regarding infringement | ||
14 | * or the like. Any license provided herein, whether implied or | ||
15 | * otherwise, applies only to this software file. Patent licenses, if | ||
16 | * any, provided herein do not apply to combinations of this program with | ||
17 | * other software, or any other product whatsoever. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License along | ||
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | ||
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | ||
22 | * | ||
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | ||
24 | * Mountain View, CA 94043, or: | ||
25 | * | ||
26 | * http://www.sgi.com | ||
27 | * | ||
28 | * For further information regarding this notice, see: | ||
29 | * | ||
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | ||
31 | */ | ||
32 | #ifndef __XFS_DIR2_H__ | ||
33 | #define __XFS_DIR2_H__ | ||
34 | |||
35 | struct uio; | ||
36 | struct xfs_dabuf; | ||
37 | struct xfs_da_args; | ||
38 | struct xfs_dir2_put_args; | ||
39 | struct xfs_inode; | ||
40 | struct xfs_trans; | ||
41 | |||
42 | /* | ||
43 | * Directory version 2. | ||
44 | * There are 4 possible formats: | ||
45 | * shortform | ||
46 | * single block - data with embedded leaf at the end | ||
47 | * multiple data blocks, single leaf+freeindex block | ||
48 | * data blocks, node&leaf blocks (btree), freeindex blocks | ||
49 | * | ||
50 | * The shortform format is in xfs_dir2_sf.h. | ||
51 | * The single block format is in xfs_dir2_block.h. | ||
52 | * The data block format is in xfs_dir2_data.h. | ||
53 | * The leaf and freeindex block formats are in xfs_dir2_leaf.h. | ||
54 | * Node blocks are the same as the other version, in xfs_da_btree.h. | ||
55 | */ | ||
56 | |||
57 | /* | ||
58 | * Byte offset in data block and shortform entry. | ||
59 | */ | ||
60 | typedef __uint16_t xfs_dir2_data_off_t; | ||
61 | #define NULLDATAOFF 0xffffU | ||
62 | typedef uint xfs_dir2_data_aoff_t; /* argument form */ | ||
63 | |||
64 | /* | ||
65 | * Directory block number (logical dirblk in file) | ||
66 | */ | ||
67 | typedef __uint32_t xfs_dir2_db_t; | ||
68 | |||
69 | /* | ||
70 | * Byte offset in a directory. | ||
71 | */ | ||
72 | typedef xfs_off_t xfs_dir2_off_t; | ||
73 | |||
74 | /* | ||
75 | * For getdents, argument struct for put routines. | ||
76 | */ | ||
77 | typedef int (*xfs_dir2_put_t)(struct xfs_dir2_put_args *pa); | ||
78 | typedef struct xfs_dir2_put_args { | ||
79 | xfs_off_t cook; /* cookie of (next) entry */ | ||
80 | xfs_intino_t ino; /* inode number */ | ||
81 | struct xfs_dirent *dbp; /* buffer pointer */ | ||
82 | char *name; /* directory entry name */ | ||
83 | int namelen; /* length of name */ | ||
84 | int done; /* output: set if value was stored */ | ||
85 | xfs_dir2_put_t put; /* put function ptr (i/o) */ | ||
86 | struct uio *uio; /* uio control structure */ | ||
87 | } xfs_dir2_put_args_t; | ||
88 | |||
89 | #define XFS_DIR_IS_V2(mp) ((mp)->m_dirversion == 2) | ||
90 | extern xfs_dirops_t xfsv2_dirops; | ||
91 | |||
92 | /* | ||
93 | * Other interfaces used by the rest of the dir v2 code. | ||
94 | */ | ||
95 | extern int | ||
96 | xfs_dir2_grow_inode(struct xfs_da_args *args, int space, | ||
97 | xfs_dir2_db_t *dbp); | ||
98 | |||
99 | extern int | ||
100 | xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *vp); | ||
101 | |||
102 | extern int | ||
103 | xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *vp); | ||
104 | |||
105 | extern int | ||
106 | xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db, | ||
107 | struct xfs_dabuf *bp); | ||
108 | |||
109 | #endif /* __XFS_DIR2_H__ */ | ||