bsd/ufs/ffs/ffs_extern.h

   1 /*
   2  * Copyright (c) 2000-2002 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 #ifndef __UFS_FFS_FFS_EXTERN_H__
  59 #define __UFS_FFS_FFS_EXTERN_H__
  60
  61 #include <sys/appleapiopts.h>
  62
  63 #ifdef __APPLE_API_UNSTABLE
  64 /*
  65  * Sysctl values for the fast filesystem.
  66  */
  67 #define FFS_CLUSTERREAD         1       /* cluster reading enabled */
  68 #define FFS_CLUSTERWRITE        2       /* cluster writing enabled */
  69 #define FFS_REALLOCBLKS         3       /* block reallocation enabled */
  70 #define FFS_ASYNCFREE           4       /* asynchronous block freeing enabled */
  71 #define FFS_MAXID               5       /* number of valid ffs ids */
  72
  73 #define FFS_NAMES { \
  74         { 0, 0 }, \
  75         { "doclusterread", CTLTYPE_INT }, \
  76         { "doclusterwrite", CTLTYPE_INT }, \
  77         { "doreallocblks", CTLTYPE_INT }, \
  78         { "doasyncfree", CTLTYPE_INT }, \
  79 }
  80 #endif /* __APPLE_API_UNSTABLE */
  81
  82 struct buf;
  83 struct fs;
  84 struct inode;
  85 struct mount;
  86 struct nameidata;
  87 struct proc;
  88 struct vfsstatfs;
  89 struct timeval;
  90 struct ucred;
  91 struct uio;
  92 struct vnode;
  93 struct mbuf;
  94 struct vfsconf;
  95
  96 #ifdef __APPLE_API_PRIVATE
  97 __BEGIN_DECLS
  98 int     ffs_fsync_internal(vnode_t, int);
  99
 100 int     ffs_blkatoff(vnode_t, off_t, char **, buf_t *);
 101
 102 int     ffs_alloc(struct inode *,
 103             ufs_daddr_t, ufs_daddr_t, int, struct ucred *, ufs_daddr_t *);
 104 int     ffs_balloc(struct inode *,
 105             ufs_daddr_t, int, struct ucred *, struct buf **, int, int *);
 106 void    ffs_blkfree(struct inode *, ufs_daddr_t, long);
 107 ufs_daddr_t ffs_blkpref(struct inode *, ufs_daddr_t, int, ufs_daddr_t *);
 108 void    ffs_clrblock(struct fs *, u_char *, ufs_daddr_t);
 109 int     ffs_fhtovp(struct mount *, int, unsigned char *, struct vnode **, vfs_context_t);
 110 void    ffs_fragacct(struct fs *, int, int32_t [], int);
 111 int     ffs_fsync(struct vnop_fsync_args *);
 112 int     ffs_init(struct vfsconf *);
 113 int     ffs_isblock(struct fs *, u_char *, ufs_daddr_t);
 114 int     ffs_mount(struct mount *, vnode_t , user_addr_t, vfs_context_t);
 115 int     ffs_mountfs(struct vnode *, struct mount *, vfs_context_t);
 116 int     ffs_mountroot(mount_t, vnode_t, vfs_context_t);
 117 int     ffs_read(struct vnop_read_args *);
 118 int     ffs_realloccg(struct inode *,
 119             ufs_daddr_t, ufs_daddr_t, int, int, struct ucred *, struct buf **);
 120 int     ffs_reclaim(struct vnop_reclaim_args *);
 121 void    ffs_setblock(struct fs *, u_char *, ufs_daddr_t);
 122 int     ffs_vfs_getattr(struct mount *, struct vfs_attr *, vfs_context_t);
 123 int     ffs_vfs_setattr(struct mount *, struct vfs_attr *, vfs_context_t);
 124 int     ffs_sync(struct mount *, int, vfs_context_t);
 125 int     ffs_sysctl(int *, u_int, user_addr_t, size_t *, user_addr_t, size_t, vfs_context_t);
 126 int     ffs_unmount(struct mount *, int, vfs_context_t);
 127 int     ffs_update(struct vnode *, struct timeval *, struct timeval *, int);
 128 int     ffs_valloc(vnode_t dvp, mode_t mode, kauth_cred_t cred, vnode_t *vpp);
 129 int     ffs_vfree(struct vnode *vp, ino_t ino, int mode);
 130 int     ffs_vget(struct mount *, ino64_t, struct vnode **, vfs_context_t);
 131 int     ffs_vptofh(struct vnode *, int *, unsigned char *, vfs_context_t);
 132 int     ffs_write(struct vnop_write_args *);
 133 int ffs_pagein(struct vnop_pagein_args *);
 134 int ffs_pageout(struct vnop_pageout_args *);
 135 int ffs_blktooff(struct vnop_blktooff_args *);
 136 int ffs_offtoblk(struct vnop_offtoblk_args *);
 137
 138 __END_DECLS
 139
 140 extern int (**ffs_vnodeop_p)(void *);
 141 extern int (**ffs_specop_p)(void *);
 142 #if FIFO
 143 extern int (**ffs_fifoop_p)(void *);
 144 #define FFS_FIFOOPS ffs_fifoop_p
 145 #else
 146 #define FFS_FIFOOPS NULL
 147 #endif
 148
 149 #endif /* __APPLE_API_PRIVATE */
 150 #endif /* __UFS_FFS_FFS_EXTERN_H__ */