1/*
2 * Copyright (c) 1982, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)inode.h 8.9 (Berkeley) 5/14/95
| 1/*
2 * Copyright (c) 1982, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)inode.h 8.9 (Berkeley) 5/14/95
|
40 */
41
42#ifndef _UFS_UFS_INODE_H_
43#define _UFS_UFS_INODE_H_
44
45#include <sys/lock.h>
46#include <sys/queue.h>
47#include <ufs/ufs/dinode.h>
48
49/*
50 * The size of a logical block number.
51 */
52typedef long ufs_lbn_t;
53
54/*
55 * This must agree with the definition in <ufs/ufs/dir.h>.
56 */
57#define doff_t int32_t
58
59/*
60 * The inode is used to describe each active (or recently active) file in the
61 * UFS filesystem. It is composed of two types of information. The first part
62 * is the information that is needed only while the file is active (such as
63 * the identity of the file and linkage to speed its lookup). The second part
64 * is the permanent meta-data associated with the file which is read in
65 * from the permanent dinode from long term storage when the file becomes
66 * active, and is put back when the file is no longer being used.
67 */
68struct inode {
69 LIST_ENTRY(inode) i_hash;/* Hash chain. */
70 TAILQ_ENTRY(inode) i_nextsnap; /* snapshot file list */
71 struct vnode *i_vnode;/* Vnode associated with this inode. */
72 struct vnode *i_devvp;/* Vnode for block I/O. */
73 u_int32_t i_flag; /* flags, see below */
74 dev_t i_dev; /* Device associated with the inode. */
75 ino_t i_number; /* The identity of the inode. */
76 int i_effnlink; /* i_nlink when I/O completes */
77
78 union { /* Associated filesystem. */
79 struct fs *fs; /* FFS */
80 struct ext2_sb_info *e2fs; /* EXT2FS */
81 } inode_u;
82#define i_fs inode_u.fs
83#define i_e2fs inode_u.e2fs
84 struct dquot *i_dquot[MAXQUOTAS]; /* Dquot structures. */
85 u_quad_t i_modrev; /* Revision level for NFS lease. */
86 struct lockf *i_lockf;/* Head of byte-level lock list. */
87 /*
88 * Side effects; used during directory lookup.
89 */
90 int32_t i_count; /* Size of free slot in directory. */
91 doff_t i_endoff; /* End of useful stuff in directory. */
92 doff_t i_diroff; /* Offset in dir, where we found last entry. */
93 doff_t i_offset; /* Offset of free space in directory. */
94 ino_t i_ino; /* Inode number of found directory. */
95 u_int32_t i_reclen; /* Size of found directory entry. */
96 u_int32_t i_spare[4]; /* XXX actually non-spare (for ext2fs). */
| 40 */
41
42#ifndef _UFS_UFS_INODE_H_
43#define _UFS_UFS_INODE_H_
44
45#include <sys/lock.h>
46#include <sys/queue.h>
47#include <ufs/ufs/dinode.h>
48
49/*
50 * The size of a logical block number.
51 */
52typedef long ufs_lbn_t;
53
54/*
55 * This must agree with the definition in <ufs/ufs/dir.h>.
56 */
57#define doff_t int32_t
58
59/*
60 * The inode is used to describe each active (or recently active) file in the
61 * UFS filesystem. It is composed of two types of information. The first part
62 * is the information that is needed only while the file is active (such as
63 * the identity of the file and linkage to speed its lookup). The second part
64 * is the permanent meta-data associated with the file which is read in
65 * from the permanent dinode from long term storage when the file becomes
66 * active, and is put back when the file is no longer being used.
67 */
68struct inode {
69 LIST_ENTRY(inode) i_hash;/* Hash chain. */
70 TAILQ_ENTRY(inode) i_nextsnap; /* snapshot file list */
71 struct vnode *i_vnode;/* Vnode associated with this inode. */
72 struct vnode *i_devvp;/* Vnode for block I/O. */
73 u_int32_t i_flag; /* flags, see below */
74 dev_t i_dev; /* Device associated with the inode. */
75 ino_t i_number; /* The identity of the inode. */
76 int i_effnlink; /* i_nlink when I/O completes */
77
78 union { /* Associated filesystem. */
79 struct fs *fs; /* FFS */
80 struct ext2_sb_info *e2fs; /* EXT2FS */
81 } inode_u;
82#define i_fs inode_u.fs
83#define i_e2fs inode_u.e2fs
84 struct dquot *i_dquot[MAXQUOTAS]; /* Dquot structures. */
85 u_quad_t i_modrev; /* Revision level for NFS lease. */
86 struct lockf *i_lockf;/* Head of byte-level lock list. */
87 /*
88 * Side effects; used during directory lookup.
89 */
90 int32_t i_count; /* Size of free slot in directory. */
91 doff_t i_endoff; /* End of useful stuff in directory. */
92 doff_t i_diroff; /* Offset in dir, where we found last entry. */
93 doff_t i_offset; /* Offset of free space in directory. */
94 ino_t i_ino; /* Inode number of found directory. */
95 u_int32_t i_reclen; /* Size of found directory entry. */
96 u_int32_t i_spare[4]; /* XXX actually non-spare (for ext2fs). */
|