1/*
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)ufsmount.h 8.2 (Berkeley) 1/12/94
| 1/*
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)ufsmount.h 8.2 (Berkeley) 1/12/94
|
37struct buf;
38struct inode;
39struct nameidata;
40struct timeval;
41struct ucred;
42struct uio;
43struct vnode;
44struct netexport;
45
46/* This structure describes the UFS specific mount structure data. */
47struct ufsmount {
48 struct mount *um_mountp; /* filesystem vfs structure */
49 dev_t um_dev; /* device mounted */
50 struct vnode *um_devvp; /* block device mounted vnode */
51 union { /* pointer to superblock */
52 struct lfs *lfs; /* LFS */
53 struct fs *fs; /* FFS */
54 } ufsmount_u;
55#define um_fs ufsmount_u.fs
56#define um_lfs ufsmount_u.lfs
57 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
58 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */
59 u_long um_nindir; /* indirect ptrs per block */
60 u_long um_bptrtodb; /* indir ptr to disk block */
61 u_long um_seqinc; /* inc between seq blocks */
62 time_t um_btime[MAXQUOTAS]; /* block quota time limit */
63 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
64 char um_qflags[MAXQUOTAS]; /* quota specific flags */
65 struct netexport um_export; /* export information */
66};
67/*
68 * Flags describing the state of quotas.
69 */
70#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
71#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
72
73/* Convert mount ptr to ufsmount ptr. */
74#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
75
76/*
77 * Macros to access file system parameters in the ufsmount structure.
78 * Used by ufs_bmap.
79 */
80#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
81#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)
82#define MNINDIR(ump) ((ump)->um_nindir)
83
| 40struct buf;
41struct inode;
42struct nameidata;
43struct timeval;
44struct ucred;
45struct uio;
46struct vnode;
47struct netexport;
48
49/* This structure describes the UFS specific mount structure data. */
50struct ufsmount {
51 struct mount *um_mountp; /* filesystem vfs structure */
52 dev_t um_dev; /* device mounted */
53 struct vnode *um_devvp; /* block device mounted vnode */
54 union { /* pointer to superblock */
55 struct lfs *lfs; /* LFS */
56 struct fs *fs; /* FFS */
57 } ufsmount_u;
58#define um_fs ufsmount_u.fs
59#define um_lfs ufsmount_u.lfs
60 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
61 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */
62 u_long um_nindir; /* indirect ptrs per block */
63 u_long um_bptrtodb; /* indir ptr to disk block */
64 u_long um_seqinc; /* inc between seq blocks */
65 time_t um_btime[MAXQUOTAS]; /* block quota time limit */
66 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
67 char um_qflags[MAXQUOTAS]; /* quota specific flags */
68 struct netexport um_export; /* export information */
69};
70/*
71 * Flags describing the state of quotas.
72 */
73#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
74#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
75
76/* Convert mount ptr to ufsmount ptr. */
77#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
78
79/*
80 * Macros to access file system parameters in the ufsmount structure.
81 * Used by ufs_bmap.
82 */
83#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
84#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)
85#define MNINDIR(ump) ((ump)->um_nindir)
86
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