Annotation of sys/ufs/mfs/mfsnode.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: mfsnode.h,v 1.11 2003/09/23 16:51:13 millert Exp $ */
2: /* $NetBSD: mfsnode.h,v 1.3 1996/02/09 22:31:31 christos Exp $ */
3:
4: /*
5: * Copyright (c) 1989, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the University nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * @(#)mfsnode.h 8.2 (Berkeley) 8/11/93
33: */
34:
35: /*
36: * This structure defines the control data for the memory based file system.
37: */
38:
39: struct mfsnode {
40: struct vnode *mfs_vnode; /* vnode associated with this mfsnode */
41: caddr_t mfs_baseoff; /* base of file system in memory */
42: long mfs_size; /* size of memory file system */
43: pid_t mfs_pid; /* supporting process pid */
44: struct buf *mfs_buflist; /* list of I/O requests */
45: long mfs_spare[4];
46: };
47:
48: /*
49: * Convert between mfsnode pointers and vnode pointers
50: */
51: #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data)
52: #define MFSTOV(mfsp) ((mfsp)->mfs_vnode)
53:
54: /* Prototypes for MFS operations on vnodes. */
55: #define mfs_lookup mfs_badop
56: #define mfs_create mfs_badop
57: #define mfs_mknod mfs_badop
58: #define mfs_access mfs_badop
59: #define mfs_getattr mfs_badop
60: #define mfs_setattr mfs_badop
61: #define mfs_read mfs_badop
62: #define mfs_write mfs_badop
63: #define mfs_poll mfs_badop
64: #define mfs_mmap mfs_badop
65: #define mfs_seek mfs_badop
66: #define mfs_remove mfs_badop
67: #define mfs_link mfs_badop
68: #define mfs_rename mfs_badop
69: #define mfs_mkdir mfs_badop
70: #define mfs_rmdir mfs_badop
71: #define mfs_symlink mfs_badop
72: #define mfs_readdir mfs_badop
73: #define mfs_readlink mfs_badop
74: #define mfs_abortop mfs_badop
75: #define mfs_lock vop_generic_lock
76: #define mfs_unlock vop_generic_unlock
77: #define mfs_islocked vop_generic_islocked
78: #define mfs_pathconf mfs_badop
79: #define mfs_advlock mfs_badop
80: #define mfs_blkatoff mfs_badop
81: #define mfs_valloc mfs_badop
82: #define mfs_vfree mfs_badop
83: #define mfs_truncate mfs_badop
84: #define mfs_update nullop
85: #define mfs_bwrite vop_generic_bwrite
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