bsd/ufs/ffs/ffs_extern.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23
  24 /*-
  25  * Copyright (c) 1991, 1993, 1994
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  *      @(#)ffs_extern.h        8.6 (Berkeley) 3/30/95
  57  */
  58
  59 /*
  60  * Sysctl values for the fast filesystem.
  61  */
  62 #define FFS_CLUSTERREAD         1       /* cluster reading enabled */
  63 #define FFS_CLUSTERWRITE        2       /* cluster writing enabled */
  64 #define FFS_REALLOCBLKS         3       /* block reallocation enabled */
  65 #define FFS_ASYNCFREE           4       /* asynchronous block freeing enabled */
  66 #define FFS_MAXID               5       /* number of valid ffs ids */
  67
  68 #define FFS_NAMES { \
  69         { 0, 0 }, \
  70         { "doclusterread", CTLTYPE_INT }, \
  71         { "doclusterwrite", CTLTYPE_INT }, \
  72         { "doreallocblks", CTLTYPE_INT }, \
  73         { "doasyncfree", CTLTYPE_INT }, \
  74 }
  75
  76 struct buf;
  77 struct fid;
  78 struct fs;
  79 struct inode;
  80 struct mount;
  81 struct nameidata;
  82 struct proc;
  83 struct statfs;
  84 struct timeval;
  85 struct ucred;
  86 struct uio;
  87 struct vnode;
  88 struct mbuf;
  89 struct vfsconf;
  90
  91 __BEGIN_DECLS
  92 int     ffs_alloc __P((struct inode *,
  93             ufs_daddr_t, ufs_daddr_t, int, struct ucred *, ufs_daddr_t *));
  94 int     ffs_balloc __P((struct inode *,
  95             ufs_daddr_t, int, struct ucred *, struct buf **, int, int *));
  96 int     ffs_blkatoff __P((struct vop_blkatoff_args *));
  97 int     ffs_blkfree __P((struct inode *, ufs_daddr_t, long));
  98 ufs_daddr_t ffs_blkpref __P((struct inode *, ufs_daddr_t, int, ufs_daddr_t *));
  99 int     ffs_bmap __P((struct vop_bmap_args *));
 100 void    ffs_clrblock __P((struct fs *, u_char *, ufs_daddr_t));
 101 int     ffs_fhtovp __P((struct mount *, struct fid *, struct mbuf *,
 102             struct vnode **, int *, struct ucred **));
 103 void    ffs_fragacct __P((struct fs *, int, int32_t [], int));
 104 int     ffs_fsync __P((struct vop_fsync_args *));
 105 int     ffs_init __P((struct vfsconf *));
 106 int     ffs_isblock __P((struct fs *, u_char *, ufs_daddr_t));
 107 int     ffs_mount __P((struct mount *,
 108             char *, caddr_t, struct nameidata *, struct proc *));
 109 int     ffs_mountfs __P((struct vnode *, struct mount *, struct proc *));
 110 int     ffs_mountroot __P((void));
 111 int     ffs_read __P((struct vop_read_args *));
 112 int     ffs_reallocblks __P((struct vop_reallocblks_args *));
 113 int     ffs_realloccg __P((struct inode *,
 114             ufs_daddr_t, ufs_daddr_t, int, int, struct ucred *, struct buf **));
 115 int     ffs_reclaim __P((struct vop_reclaim_args *));
 116 void    ffs_setblock __P((struct fs *, u_char *, ufs_daddr_t));
 117 int     ffs_statfs __P((struct mount *, struct statfs *, struct proc *));
 118 int     ffs_sync __P((struct mount *, int, struct ucred *, struct proc *));
 119 int     ffs_sysctl __P((int *, u_int, void *, size_t *, void *, size_t,
 120             struct proc *));
 121 int     ffs_truncate __P((struct vop_truncate_args *));
 122 int     ffs_unmount __P((struct mount *, int, struct proc *));
 123 int     ffs_update __P((struct vop_update_args *));
 124 int     ffs_valloc __P((struct vop_valloc_args *));
 125 int     ffs_vfree __P((struct vop_vfree_args *));
 126 int     ffs_vget __P((struct mount *, ino_t, struct vnode **));
 127 int     ffs_vptofh __P((struct vnode *, struct fid *));
 128 int     ffs_write __P((struct vop_write_args *));
 129 int ffs_pagein __P((struct vop_pagein_args *));
 130 int ffs_pageout __P((struct vop_pageout_args *));
 131 int ffs_blktooff __P((struct vop_blktooff_args *));
 132 int ffs_offtoblk __P((struct vop_offtoblk_args *));
 133
 134 #if DIAGNOSTIC
 135 void    ffs_checkoverlap __P((struct buf *, struct inode *));
 136 #endif
 137 __END_DECLS
 138
 139 extern int (**ffs_vnodeop_p)(void *);
 140 extern int (**ffs_specop_p)(void *);
 141 #if FIFO
 142 extern int (**ffs_fifoop_p)(void *);
 143 #define FFS_FIFOOPS ffs_fifoop_p
 144 #else
 145 #define FFS_FIFOOPS NULL
 146 #endif