2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
34 * $FreeBSD: src/sys/ufs/ufs/ufsmount.h,v 1.17 1999/12/29 04:55:06 peter Exp $
35 * $DragonFly: src/sys/vfs/ufs/ufsmount.h,v 1.3 2003/06/25 03:56:12 dillon Exp $
38 #ifndef _UFS_UFS_UFSMOUNT_H_
39 #define _UFS_UFS_UFSMOUNT_H_
42 * Arguments to mount UFS-based filesystems
45 char *fspec; /* block special device to mount */
46 struct export_args export; /* network export information */
50 * Arguments to mount MFS
53 char *fspec; /* name to export for statfs */
54 struct export_args export; /* if exported MFSes are supported */
55 caddr_t base; /* base of file system in memory */
56 u_long size; /* size of file system */
62 MALLOC_DECLARE(M_UFSMNT);
74 /* This structure describes the UFS specific mount structure data. */
76 struct mount *um_mountp; /* filesystem vfs structure */
77 dev_t um_dev; /* device mounted */
78 struct vnode *um_devvp; /* block device mounted vnode */
80 union { /* pointer to superblock */
81 struct fs *fs; /* FFS */
82 struct ext2_sb_info *e2fs; /* EXT2FS */
84 #define um_fs ufsmount_u.fs
85 #define um_e2fs ufsmount_u.e2fs
86 #define um_e2fsb ufsmount_u.e2fs->s_es
88 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
89 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */
90 u_long um_nindir; /* indirect ptrs per block */
91 u_long um_bptrtodb; /* indir ptr to disk block */
92 u_long um_seqinc; /* inc between seq blocks */
93 time_t um_btime[MAXQUOTAS]; /* block quota time limit */
94 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
95 char um_qflags[MAXQUOTAS]; /* quota specific flags */
96 struct netexport um_export; /* export information */
97 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */
98 struct malloc_type *um_malloctype; /* The inodes malloctype */
99 int um_i_effnlink_valid; /* i_effnlink valid? */
100 int (*um_blkatoff) __P((struct vnode *, off_t, char **, struct buf **));
101 int (*um_truncate) __P((struct vnode *, off_t, int, struct ucred *, struct thread *));
102 int (*um_update) __P((struct vnode *, int));
103 int (*um_valloc) __P((struct vnode *, int, struct ucred *, struct vnode **));
104 int (*um_vfree) __P((struct vnode *, ino_t, int));
107 #define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd)
108 #define UFS_TRUNCATE(aa, bb, cc, dd, ee) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd, ee)
109 #define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb)
110 #define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd)
111 #define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc)
114 * Flags describing the state of quotas.
116 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
117 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
119 /* Convert mount ptr to ufsmount ptr. */
120 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
123 * Macros to access file system parameters in the ufsmount structure.
126 #define MNINDIR(ump) ((ump)->um_nindir)
127 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
128 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)