sys/vfs/ufs/ffs_softdep_stub.c

   1
   2 /*
   3  * Copyright 1998 Marshall Kirk McKusick. All Rights Reserved.
   4  *
   5  * The soft updates code is derived from the appendix of a University
   6  * of Michigan technical report (Gregory R. Ganger and Yale N. Patt,
   7  * "Soft Updates: A Solution to the Metadata Update Problem in File
   8  * Systems", CSE-TR-254-95, August 1995).
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. None of the names of McKusick, Ganger, or the University of Michigan
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY MARSHALL KIRK MCKUSICK ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL MARSHALL KIRK MCKUSICK BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      from: @(#)ffs_softdep_stub.c    9.1 (McKusick) 7/10/97
  35  * $FreeBSD: src/sys/ufs/ffs/ffs_softdep_stub.c,v 1.7.2.1 2000/12/28 11:01:45 ps Exp $
  36  * $DragonFly: src/sys/vfs/ufs/ffs_softdep_stub.c,v 1.8 2006/05/06 16:20:19 dillon Exp $
  37  */
  38
  39 /*
  40  * Use this file as ffs_softdep.c if you do not wish the real ffs_softdep.c
  41  * to be included in your system. (e.g for legal reasons )
  42  * The real files are in /usr/src/contrib/sys/softupdates.
  43  * You must copy them here before you can use soft updates.
  44  * Read the README for legal and technical information.
  45  */
  46
  47 #include "opt_ffs.h"
  48 #if (SOFTUPDATES == 0 ) /* SOFTUPDATES not configured in, use these stubs. */
  49 #include <sys/param.h>
  50 #include <sys/systm.h>
  51 #include <sys/malloc.h>
  52 #include <sys/vnode.h>
  53 #include "quota.h"
  54 #include "inode.h"
  55 #include "ffs_extern.h"
  56 #include "ufs_extern.h"
  57
  58 int
  59 softdep_flushfiles(struct mount *oldmnt, int flags)
  60 {
  61         panic("softdep_flushfiles called");
  62 }
  63
  64 int
  65 softdep_mount(struct vnode *devvp, struct mount *mp, struct fs *fs)
  66 {
  67         return (0);
  68 }
  69
  70 void
  71 softdep_initialize(void)
  72 {
  73         /* empty */
  74 }
  75
  76 void
  77 softdep_setup_inomapdep(struct buf *bp, struct inode *ip, ino_t newinum)
  78 {
  79         panic("softdep_setup_inomapdep called");
  80 }
  81
  82 void
  83 softdep_setup_blkmapdep(struct buf *bp, struct fs *fs, ufs_daddr_t newblkno)
  84 {
  85         panic("softdep_setup_blkmapdep called");
  86 }
  87
  88 void
  89 softdep_setup_allocdirect(struct inode *ip, ufs_lbn_t lbn,
  90                           ufs_daddr_t newblkno, ufs_daddr_t oldblkno,
  91                           long newsize, long oldsize, struct buf *bp)
  92 {
  93         panic("softdep_setup_allocdirect called");
  94 }
  95
  96 void
  97 softdep_setup_allocindir_page(struct inode *ip, ufs_lbn_t lbn, struct buf *bp,
  98                               int ptrno, ufs_daddr_t newblkno,
  99                               ufs_daddr_t oldblkno, struct buf *nbp)
 100 {
 101         panic("softdep_setup_allocindir_page called");
 102 }
 103
 104 void
 105 softdep_setup_allocindir_meta(struct buf *nbp, struct inode *ip, struct buf *bp,
 106                               int ptrno, ufs_daddr_t newblkno)
 107 {
 108         panic("softdep_setup_allocindir_meta called");
 109 }
 110
 111 void
 112 softdep_setup_freeblocks(struct inode *ip, off_t length)
 113 {
 114         panic("softdep_setup_freeblocks called");
 115 }
 116
 117 /* XXX needed to change this for FreeBSD.. hit poul */
 118 void
 119 softdep_freefile(struct vnode *pvp, ino_t ino, int mode)
 120 {
 121         panic("softdep_freefile called");
 122 }
 123
 124 void
 125 softdep_setup_directory_add(struct buf *bp, struct inode *dp, off_t diroffset,
 126                             ino_t newinum, struct buf *newdirbp)
 127 {
 128         panic("softdep_setup_directory_add called");
 129 }
 130
 131 void
 132 softdep_change_directoryentry_offset(struct inode *dp, caddr_t base,
 133                                      caddr_t oldloc, caddr_t newloc,
 134                                      int entrysize)
 135 {
 136         panic("softdep_change_directoryentry_offset called");
 137 }
 138
 139 void
 140 softdep_setup_remove(struct buf *bp, struct inode *dp, struct inode *ip,
 141                      int isrmdir)
 142 {
 143         panic("softdep_setup_remove called");
 144 }
 145
 146 void
 147 softdep_setup_directory_change(struct buf *bp, struct inode *dp,
 148                                struct inode *ip, ino_t newinum, int isrmdir)
 149 {
 150         panic("softdep_setup_directory_change called");
 151 }
 152
 153 void
 154 softdep_change_linkcnt(struct inode *ip)
 155 {
 156         panic("softdep_change_linkcnt called");
 157 }
 158
 159 void
 160 softdep_load_inodeblock(struct inode *ip)
 161 {
 162         panic("softdep_load_inodeblock called");
 163 }
 164
 165 void
 166 softdep_update_inodeblock(struct inode *ip, struct buf *bp, int waitfor)
 167 {
 168         panic("softdep_update_inodeblock called");
 169 }
 170
 171 void
 172 softdep_fsync_mountdev(struct vnode *vp)
 173 {
 174         return;
 175 }
 176
 177 /*
 178  * softdep_sync_metadata(struct vnode *vp, struct thread *td)
 179  */
 180 int
 181 softdep_sync_metadata(struct vnode *vp, struct thread *td)
 182 {
 183         return (0);
 184 }
 185
 186 int
 187 softdep_slowdown(struct vnode *vp)
 188 {
 189         panic("softdep_slowdown called");
 190 }
 191 #endif  /* SOFTUPDATES not configured in */