ffs_extern.h revision 1.12 1 /* $NetBSD: ffs_extern.h,v 1.12 1999/02/26 23:44:49 wrstuden Exp $ */
2
3 /*-
4 * Copyright (c) 1991, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)ffs_extern.h 8.6 (Berkeley) 3/30/95
36 */
37
38 /*
39 * Sysctl values for the fast filesystem.
40 */
41 #define FFS_CLUSTERREAD 1 /* cluster reading enabled */
42 #define FFS_CLUSTERWRITE 2 /* cluster writing enabled */
43 #define FFS_REALLOCBLKS 3 /* block reallocation enabled */
44 #define FFS_ASYNCFREE 4 /* asynchronous block freeing enabled */
45 #define FFS_MAXID 5 /* number of valid ffs ids */
46
47 #define FFS_NAMES { \
48 { 0, 0 }, \
49 { "doclusterread", CTLTYPE_INT }, \
50 { "doclusterwrite", CTLTYPE_INT }, \
51 { "doreallocblks", CTLTYPE_INT }, \
52 { "doasyncfree", CTLTYPE_INT }, \
53 }
54
55 struct buf;
56 struct fid;
57 struct fs;
58 struct inode;
59 struct dinode;
60 struct mount;
61 struct nameidata;
62 struct proc;
63 struct statfs;
64 struct timeval;
65 struct ucred;
66 struct ufsmount;
67 struct uio;
68 struct vnode;
69 struct mbuf;
70 struct cg;
71
72 extern struct pool ffs_inode_pool; /* memory pool for inodes */
73
74 __BEGIN_DECLS
75
76 /* ffs_alloc.c */
77 int ffs_alloc __P((struct inode *, ufs_daddr_t, ufs_daddr_t , int, struct ucred *,
78 ufs_daddr_t *));
79 int ffs_realloccg __P((struct inode *, ufs_daddr_t, ufs_daddr_t, int, int ,
80 struct ucred *, struct buf **));
81 int ffs_reallocblks __P((void *));
82 int ffs_valloc __P((void *));
83 ufs_daddr_t ffs_blkpref __P((struct inode *, ufs_daddr_t, int, ufs_daddr_t *));
84 void ffs_blkfree __P((struct inode *, ufs_daddr_t, long));
85 int ffs_vfree __P((void *));
86 void ffs_clusteracct __P((int, struct fs *, struct cg *, ufs_daddr_t, int));
87
88 /* ffs_balloc.c */
89 int ffs_balloc __P((struct inode *, ufs_daddr_t, int, struct ucred *,
90 struct buf **, int));
91
92 /* ffs_bswap.c */
93 void ffs_sb_swap __P((struct fs*, struct fs *, int));
94 void ffs_dinode_swap __P((struct dinode *, struct dinode *));
95 void ffs_csum_swap __P((struct csum *, struct csum *, int));
96
97 /* ffs_inode.c */
98 void ffs_init __P((void));
99 int ffs_update __P((void *));
100 int ffs_truncate __P((void *));
101
102 /* ffs_subr.c */
103 int ffs_blkatoff __P((void *));
104 void ffs_fragacct __P((struct fs *, int, int32_t[], int, int));
105 #ifdef DIAGNOSTIC
106 void ffs_checkoverlap __P((struct buf *, struct inode *));
107 #endif
108 int ffs_isblock __P((struct fs *, unsigned char *, ufs_daddr_t));
109 void ffs_clrblock __P((struct fs *, u_char *, ufs_daddr_t));
110 void ffs_setblock __P((struct fs *, unsigned char *, ufs_daddr_t));
111
112 /* ffs_vfsops.c */
113 int ffs_mountroot __P((void));
114 int ffs_mount __P((struct mount *, const char *, void *, struct nameidata *,
115 struct proc *));
116 int ffs_reload __P((struct mount *, struct ucred *, struct proc *));
117 int ffs_mountfs __P((struct vnode *, struct mount *, struct proc *));
118 int ffs_oldfscompat __P((struct fs *));
119 int ffs_unmount __P((struct mount *, int, struct proc *));
120 int ffs_flushfiles __P((struct mount *, int, struct proc *));
121 int ffs_statfs __P((struct mount *, struct statfs *, struct proc *));
122 int ffs_sync __P((struct mount *, int, struct ucred *, struct proc *));
123 int ffs_vget __P((struct mount *, ino_t, struct vnode **));
124 int ffs_fhtovp __P((struct mount *, struct fid *, struct vnode **));
125 int ffs_vptofh __P((struct vnode *, struct fid *));
126 int ffs_sysctl __P((int *, u_int, void *, size_t *, void *, size_t,
127 struct proc *));
128 int ffs_sbupdate __P((struct ufsmount *, int));
129 int ffs_cgupdate __P((struct ufsmount *, int));
130
131 /* ffs_vnops.c */
132 int ffs_read __P((void *));
133 int ffs_write __P((void *));
134 #define ffs_fsync genfs_fsync
135 int ffs_reclaim __P((void *));
136 __END_DECLS
137
138 extern int (**ffs_vnodeop_p) __P((void *));
139 extern int (**ffs_specop_p) __P((void *));
140 extern int (**ffs_fifoop_p) __P((void *));
141
142
143