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 1.5 2004/05/18 00:16:46 cpressey 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, thread_t td) 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 long 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, long 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 *a_vp, struct ucred *a_cred, 179 * int a_waitfor, struct proc *a_p) 180 */ 181 int 182 softdep_sync_metadata(struct vop_fsync_args *ap) 183 { 184 return (0); 185 } 186 187 int 188 softdep_slowdown(struct vnode *vp) 189 { 190 panic("softdep_slowdown called"); 191 } 192 #endif /* SOFTUPDATES not configured in */ 193