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b688fc87 WJ |
1 | /* |
2 | * Copyright (c) 1989 The Regents of the University of California. | |
3 | * 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 | * @(#)mfsnode.h 7.3 (Berkeley) 4/16/91 | |
34 | */ | |
35 | ||
36 | /* | |
37 | * This structure defines the control data for the memory | |
38 | * based file system. | |
39 | */ | |
40 | ||
41 | struct mfsnode { | |
42 | struct vnode *mfs_vnode; /* vnode associated with this mfsnode */ | |
43 | caddr_t mfs_baseoff; /* base of file system in memory */ | |
44 | long mfs_size; /* size of memory file system */ | |
45 | pid_t mfs_pid; /* supporting process pid */ | |
46 | struct buf *mfs_buflist; /* list of I/O requests */ | |
47 | long mfs_spare[4]; | |
48 | }; | |
49 | ||
50 | /* | |
51 | * Convert between mfsnode pointers and vnode pointers | |
52 | */ | |
53 | #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data) | |
54 | #define MFSTOV(mfsp) ((mfsp)->mfs_vnode) | |
55 | ||
56 | /* | |
57 | * Prototypes for MFS operations on vnodes. | |
58 | */ | |
59 | int mfs_badop(); | |
60 | #define mfs_lookup ((int (*) __P(( \ | |
61 | struct vnode *vp, \ | |
62 | struct nameidata *ndp, \ | |
63 | struct proc *p))) mfs_badop) | |
64 | #define mfs_create ((int (*) __P(( \ | |
65 | struct nameidata *ndp, \ | |
66 | struct vattr *vap, \ | |
67 | struct proc *p))) mfs_badop) | |
68 | #define mfs_mknod ((int (*) __P(( \ | |
69 | struct nameidata *ndp, \ | |
70 | struct vattr *vap, \ | |
71 | struct ucred *cred, \ | |
72 | struct proc *p))) mfs_badop) | |
73 | int mfs_open __P(( | |
74 | struct vnode *vp, | |
75 | int mode, | |
76 | struct ucred *cred, | |
77 | struct proc *p)); | |
78 | int mfs_close __P(( | |
79 | struct vnode *vp, | |
80 | int fflag, | |
81 | struct ucred *cred, | |
82 | struct proc *p)); | |
83 | #define mfs_access ((int (*) __P(( \ | |
84 | struct vnode *vp, \ | |
85 | int mode, \ | |
86 | struct ucred *cred, \ | |
87 | struct proc *p))) mfs_badop) | |
88 | #define mfs_getattr ((int (*) __P(( \ | |
89 | struct vnode *vp, \ | |
90 | struct vattr *vap, \ | |
91 | struct ucred *cred, \ | |
92 | struct proc *p))) mfs_badop) | |
93 | #define mfs_setattr ((int (*) __P(( \ | |
94 | struct vnode *vp, \ | |
95 | struct vattr *vap, \ | |
96 | struct ucred *cred, \ | |
97 | struct proc *p))) mfs_badop) | |
98 | #define mfs_read ((int (*) __P(( \ | |
99 | struct vnode *vp, \ | |
100 | struct uio *uio, \ | |
101 | int ioflag, \ | |
102 | struct ucred *cred))) mfs_badop) | |
103 | #define mfs_write ((int (*) __P(( \ | |
104 | struct vnode *vp, \ | |
105 | struct uio *uio, \ | |
106 | int ioflag, \ | |
107 | struct ucred *cred))) mfs_badop) | |
108 | int mfs_ioctl __P(( | |
109 | struct vnode *vp, | |
110 | int command, | |
111 | caddr_t data, | |
112 | int fflag, | |
113 | struct ucred *cred, | |
114 | struct proc *p)); | |
115 | #define mfs_select ((int (*) __P(( \ | |
116 | struct vnode *vp, \ | |
117 | int which, \ | |
118 | int fflags, \ | |
119 | struct ucred *cred, \ | |
120 | struct proc *p))) mfs_badop) | |
121 | #define mfs_mmap ((int (*) __P(( \ | |
122 | struct vnode *vp, \ | |
123 | int fflags, \ | |
124 | struct ucred *cred, \ | |
125 | struct proc *p))) mfs_badop) | |
126 | #define mfs_fsync ((int (*) __P(( \ | |
127 | struct vnode *vp, \ | |
128 | int fflags, \ | |
129 | struct ucred *cred, \ | |
130 | int waitfor, \ | |
131 | struct proc *p))) mfs_badop) | |
132 | #define mfs_seek ((int (*) __P(( \ | |
133 | struct vnode *vp, \ | |
134 | off_t oldoff, \ | |
135 | off_t newoff, \ | |
136 | struct ucred *cred))) mfs_badop) | |
137 | #define mfs_remove ((int (*) __P(( \ | |
138 | struct nameidata *ndp, \ | |
139 | struct proc *p))) mfs_badop) | |
140 | #define mfs_link ((int (*) __P(( \ | |
141 | struct vnode *vp, \ | |
142 | struct nameidata *ndp, \ | |
143 | struct proc *p))) mfs_badop) | |
144 | #define mfs_rename ((int (*) __P(( \ | |
145 | struct nameidata *fndp, \ | |
146 | struct nameidata *tdnp, \ | |
147 | struct proc *p))) mfs_badop) | |
148 | #define mfs_mkdir ((int (*) __P(( \ | |
149 | struct nameidata *ndp, \ | |
150 | struct vattr *vap, \ | |
151 | struct proc *p))) mfs_badop) | |
152 | #define mfs_rmdir ((int (*) __P(( \ | |
153 | struct nameidata *ndp, \ | |
154 | struct proc *p))) mfs_badop) | |
155 | #define mfs_symlink ((int (*) __P(( \ | |
156 | struct nameidata *ndp, \ | |
157 | struct vattr *vap, \ | |
158 | char *target, \ | |
159 | struct proc *p))) mfs_badop) | |
160 | #define mfs_readdir ((int (*) __P(( \ | |
161 | struct vnode *vp, \ | |
162 | struct uio *uio, \ | |
163 | struct ucred *cred, \ | |
164 | int *eofflagp))) mfs_badop) | |
165 | #define mfs_readlink ((int (*) __P(( \ | |
166 | struct vnode *vp, \ | |
167 | struct uio *uio, \ | |
168 | struct ucred *cred))) mfs_badop) | |
169 | #define mfs_abortop ((int (*) __P(( \ | |
170 | struct nameidata *ndp))) mfs_badop) | |
171 | int mfs_inactive __P(( | |
172 | struct vnode *vp, | |
173 | struct proc *p)); | |
174 | #define mfs_reclaim ((int (*) __P(( \ | |
175 | struct vnode *vp))) nullop) | |
176 | #define mfs_lock ((int (*) __P(( \ | |
177 | struct vnode *vp))) nullop) | |
178 | #define mfs_unlock ((int (*) __P(( \ | |
179 | struct vnode *vp))) nullop) | |
180 | int mfs_bmap __P(( | |
181 | struct vnode *vp, | |
182 | daddr_t bn, | |
183 | struct vnode **vpp, | |
184 | daddr_t *bnp)); | |
185 | int mfs_strategy __P(( | |
186 | struct buf *bp)); | |
187 | int mfs_print __P(( | |
188 | struct vnode *vp)); | |
189 | #define mfs_islocked ((int (*) __P(( \ | |
190 | struct vnode *vp))) nullop) | |
191 | #define mfs_advlock ((int (*) __P(( \ | |
192 | struct vnode *vp, \ | |
193 | caddr_t id, \ | |
194 | int op, \ | |
195 | struct flock *fl, \ | |
196 | int flags))) mfs_badop) |