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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
33 #ifndef _UFS_UFS_UFSMOUNT_H_
34 #define _UFS_UFS_UFSMOUNT_H_
36 #include <sys/buf.h> /* XXX For struct workhead. */
39 * Arguments to mount UFS-based filesystems
42 char *fspec; /* block special device to mount */
43 struct export_args export; /* network export information */
49 MALLOC_DECLARE(M_UFSMNT);
59 struct ufs_extattr_per_mount;
61 /* This structure describes the UFS specific mount structure data. */
63 struct mount *um_mountp; /* filesystem vfs structure */
64 struct cdev *um_dev; /* device mounted */
65 struct g_consumer *um_cp;
66 struct bufobj *um_bo; /* Buffer cache object */
67 struct vnode *um_devvp; /* block device mounted vnode */
68 u_long um_fstype; /* type of filesystem */
69 struct fs *um_fs; /* pointer to superblock */
70 struct ufs_extattr_per_mount um_extattr; /* extended attrs */
71 u_long um_nindir; /* indirect ptrs per block */
72 u_long um_bptrtodb; /* indir ptr to disk block */
73 u_long um_seqinc; /* inc between seq blocks */
74 struct mtx um_lock; /* Protects ufsmount & fs */
75 long um_numindirdeps; /* outstanding indirdeps */
76 struct workhead softdep_workitem_pending; /* softdep work queue */
77 struct worklist *softdep_worklist_tail; /* Tail pointer for above */
78 int softdep_on_worklist; /* Items on the worklist */
79 int softdep_on_worklist_inprogress; /* Busy items on worklist */
80 int softdep_deps; /* Total dependency count */
81 int softdep_accdeps; /* accumulated dep count */
82 int softdep_req; /* Wakeup when deps hits 0. */
83 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
84 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */
85 time_t um_btime[MAXQUOTAS]; /* block quota time limit */
86 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
87 char um_qflags[MAXQUOTAS]; /* quota specific flags */
88 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */
89 int (*um_balloc)(struct vnode *, off_t, int, struct ucred *, int, struct buf **);
90 int (*um_blkatoff)(struct vnode *, off_t, char **, struct buf **);
91 int (*um_truncate)(struct vnode *, off_t, int, struct ucred *, struct thread *);
92 int (*um_update)(struct vnode *, int);
93 int (*um_valloc)(struct vnode *, int, struct ucred *, struct vnode **);
94 int (*um_vfree)(struct vnode *, ino_t, int);
95 void (*um_ifree)(struct ufsmount *, struct inode *);
98 #define UFS_BALLOC(aa, bb, cc, dd, ee, ff) VFSTOUFS((aa)->v_mount)->um_balloc(aa, bb, cc, dd, ee, ff)
99 #define UFS_BLKATOFF(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd)
100 #define UFS_TRUNCATE(aa, bb, cc, dd, ee) VFSTOUFS((aa)->v_mount)->um_truncate(aa, bb, cc, dd, ee)
101 #define UFS_UPDATE(aa, bb) VFSTOUFS((aa)->v_mount)->um_update(aa, bb)
102 #define UFS_VALLOC(aa, bb, cc, dd) VFSTOUFS((aa)->v_mount)->um_valloc(aa, bb, cc, dd)
103 #define UFS_VFREE(aa, bb, cc) VFSTOUFS((aa)->v_mount)->um_vfree(aa, bb, cc)
104 #define UFS_IFREE(aa, bb) ((aa)->um_ifree(aa, bb))
106 #define UFS_LOCK(aa) mtx_lock(&(aa)->um_lock)
107 #define UFS_UNLOCK(aa) mtx_unlock(&(aa)->um_lock)
108 #define UFS_MTX(aa) (&(aa)->um_lock)
117 * Flags describing the state of quotas.
119 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
120 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
122 /* Convert mount ptr to ufsmount ptr. */
123 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
124 #define UFSTOVFS(ump) (ump)->um_mountp
127 * Macros to access filesystem parameters in the ufsmount structure.
130 #define MNINDIR(ump) ((ump)->um_nindir)
131 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
132 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)