bsd/ufs/ffs/ffs_extern.h

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  31
  32 /*-
  33  * Copyright (c) 1991, 1993, 1994
  34  *      The Regents of the University of California.  All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. All advertising materials mentioning features or use of this software
  45  *    must display the following acknowledgement:
  46  *      This product includes software developed by the University of
  47  *      California, Berkeley and its contributors.
  48  * 4. Neither the name of the University nor the names of its contributors
  49  *    may be used to endorse or promote products derived from this software
  50  *    without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  62  * SUCH DAMAGE.
  63  *
  64  *      @(#)ffs_extern.h        8.6 (Berkeley) 3/30/95
  65  */
  66 #ifndef __UFS_FFS_FFS_EXTERN_H__
  67 #define __UFS_FFS_FFS_EXTERN_H__
  68
  69 #include <sys/appleapiopts.h>
  70
  71 #ifdef __APPLE_API_UNSTABLE
  72 /*
  73  * Sysctl values for the fast filesystem.
  74  */
  75 #define FFS_CLUSTERREAD         1       /* cluster reading enabled */
  76 #define FFS_CLUSTERWRITE        2       /* cluster writing enabled */
  77 #define FFS_REALLOCBLKS         3       /* block reallocation enabled */
  78 #define FFS_ASYNCFREE           4       /* asynchronous block freeing enabled */
  79 #define FFS_MAXID               5       /* number of valid ffs ids */
  80
  81 #define FFS_NAMES { \
  82         { 0, 0 }, \
  83         { "doclusterread", CTLTYPE_INT }, \
  84         { "doclusterwrite", CTLTYPE_INT }, \
  85         { "doreallocblks", CTLTYPE_INT }, \
  86         { "doasyncfree", CTLTYPE_INT }, \
  87 }
  88 #endif /* __APPLE_API_UNSTABLE */
  89
  90 struct buf;
  91 struct fs;
  92 struct inode;
  93 struct mount;
  94 struct nameidata;
  95 struct proc;
  96 struct vfsstatfs;
  97 struct timeval;
  98 struct ucred;
  99 struct uio;
 100 struct vnode;
 101 struct mbuf;
 102 struct vfsconf;
 103
 104 #ifdef __APPLE_API_PRIVATE
 105 __BEGIN_DECLS
 106 int     ffs_fsync_internal(vnode_t, int);
 107
 108 int     ffs_blkatoff(vnode_t, off_t, char **, buf_t *);
 109
 110 int     ffs_alloc(struct inode *,
 111             ufs_daddr_t, ufs_daddr_t, int, struct ucred *, ufs_daddr_t *);
 112 int     ffs_balloc(struct inode *,
 113             ufs_daddr_t, int, struct ucred *, struct buf **, int, int *);
 114 void    ffs_blkfree(struct inode *, ufs_daddr_t, long);
 115 ufs_daddr_t ffs_blkpref(struct inode *, ufs_daddr_t, int, ufs_daddr_t *);
 116 void    ffs_clrblock(struct fs *, u_char *, ufs_daddr_t);
 117 int     ffs_fhtovp(struct mount *, int, unsigned char *, struct vnode **, vfs_context_t);
 118 void    ffs_fragacct(struct fs *, int, int32_t [], int);
 119 int     ffs_fsync(struct vnop_fsync_args *);
 120 int     ffs_init(struct vfsconf *);
 121 int     ffs_isblock(struct fs *, u_char *, ufs_daddr_t);
 122 int     ffs_mount(struct mount *, vnode_t , user_addr_t, vfs_context_t);
 123 int     ffs_mountfs(struct vnode *, struct mount *, vfs_context_t);
 124 int     ffs_mountroot(mount_t, vnode_t, vfs_context_t);
 125 int     ffs_read(struct vnop_read_args *);
 126 int     ffs_realloccg(struct inode *,
 127             ufs_daddr_t, ufs_daddr_t, int, int, struct ucred *, struct buf **);
 128 int     ffs_reclaim(struct vnop_reclaim_args *);
 129 void    ffs_setblock(struct fs *, u_char *, ufs_daddr_t);
 130 int     ffs_vfs_getattr(struct mount *, struct vfs_attr *, vfs_context_t);
 131 int     ffs_vfs_setattr(struct mount *, struct vfs_attr *, vfs_context_t);
 132 int     ffs_sync(struct mount *, int, vfs_context_t);
 133 int     ffs_sysctl(int *, u_int, user_addr_t, size_t *, user_addr_t, size_t, vfs_context_t);
 134 int     ffs_unmount(struct mount *, int, vfs_context_t);
 135 int     ffs_update(struct vnode *, struct timeval *, struct timeval *, int);
 136 int     ffs_valloc(vnode_t dvp, mode_t mode, kauth_cred_t cred, vnode_t *vpp);
 137 int     ffs_vfree(struct vnode *vp, ino_t ino, int mode);
 138 int     ffs_vget(struct mount *, ino64_t, struct vnode **, vfs_context_t);
 139 int     ffs_vptofh(struct vnode *, int *, unsigned char *, vfs_context_t);
 140 int     ffs_write(struct vnop_write_args *);
 141 int ffs_pagein(struct vnop_pagein_args *);
 142 int ffs_pageout(struct vnop_pageout_args *);
 143 int ffs_blktooff(struct vnop_blktooff_args *);
 144 int ffs_offtoblk(struct vnop_offtoblk_args *);
 145
 146 __END_DECLS
 147
 148 extern int (**ffs_vnodeop_p)(void *);
 149 extern int (**ffs_specop_p)(void *);
 150 #if FIFO
 151 extern int (**ffs_fifoop_p)(void *);
 152 #define FFS_FIFOOPS ffs_fifoop_p
 153 #else
 154 #define FFS_FIFOOPS NULL
 155 #endif
 156
 157 #endif /* __APPLE_API_PRIVATE */
 158 #endif /* __UFS_FFS_FFS_EXTERN_H__ */