lfs_extern.h revision 1.29
1 /* $NetBSD: lfs_extern.h,v 1.29 2002/05/12 23:06:29 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Konrad E. Schroder <perseant (at) hhhh.org>. 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 /*- 39 * Copyright (c) 1991, 1993, 1994 40 * The Regents of the University of California. All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by the University of 53 * California, Berkeley and its contributors. 54 * 4. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 * 70 * @(#)lfs_extern.h 8.6 (Berkeley) 5/8/95 71 */ 72 73 /* Copied from ext2fs for ITIMES. XXX This is a bogus use of v_tag. */ 74 #define IS_LFS_VNODE(vp) (vp->v_tag == VT_LFS) 75 76 /* 77 * Sysctl values for LFS. 78 */ 79 #define LFS_WRITEINDIR 1 /* flush indirect blocks on non-checkpoint writes */ 80 #define LFS_CLEAN_VNHEAD 2 /* put prev unrefed cleaned vnodes on head of free list */ 81 #define LFS_DOSTATS 3 82 #define LFS_STATS 4 83 #define LFS_MAXID 5 84 85 #define LFS_NAMES { \ 86 { 0, 0 }, \ 87 { "flushindir", CTLTYPE_INT }, \ 88 { "clean_vnhead", CTLTYPE_INT }, \ 89 { "dostats", CTLTYPE_INT }, \ 90 { "stats", CTLTYPE_STRUCT }, \ 91 } 92 93 struct fid; 94 struct mount; 95 struct nameidata; 96 struct proc; 97 struct statfs; 98 struct timeval; 99 struct inode; 100 struct uio; 101 struct mbuf; 102 struct dinode; 103 struct buf; 104 struct vnode; 105 struct dlfs; 106 struct lfs; 107 struct segment; 108 struct ucred; 109 110 extern int lfs_allclean_wakeup; 111 extern struct pool lfs_inode_pool; /* memory pool for inodes */ 112 113 __BEGIN_DECLS 114 /* lfs_alloc.c */ 115 int lfs_rf_valloc(struct lfs *, ino_t, int, struct proc *, struct vnode **); 116 void lfs_vcreate(struct mount *, ino_t, struct vnode *); 117 /* lfs_bio.c */ 118 int lfs_availwait(struct lfs *, int); 119 int lfs_bwrite_ext(struct buf *, int); 120 int lfs_fits(struct lfs *, int); 121 void lfs_flush_fs(struct lfs *, int); 122 void lfs_flush(struct lfs *, int); 123 int lfs_check(struct vnode *, ufs_daddr_t, int); 124 #ifdef MALLOCLOG 125 void lfs_freebuf_malloclog(struct buf *, char *, int); 126 struct buf *lfs_newbuf_malloclog(struct lfs *, struct vnode *, 127 ufs_daddr_t, size_t, char *, int); 128 #define lfs_freebuf(BP) lfs_freebuf_malloclog((BP), __FILE__, __LINE__) 129 #define lfs_newbuf(F, V, A, S) lfs_newbuf_malloclog((F),(V),(A),(S),__FILE__,__LINE__) 130 #else 131 void lfs_freebuf(struct buf *); 132 struct buf *lfs_newbuf(struct lfs *, struct vnode *, ufs_daddr_t, size_t); 133 #endif 134 void lfs_countlocked(int *, long *); 135 int lfs_reserve(struct lfs *, struct vnode *, int); 136 137 /* lfs_cksum.c */ 138 u_int32_t cksum(void *, size_t); 139 u_int32_t lfs_sb_cksum(struct dlfs *); 140 141 /* lfs_debug.c */ 142 #ifdef DEBUG 143 void lfs_dump_super(struct lfs *); 144 void lfs_dump_dinode(struct dinode *); 145 void lfs_check_bpp(struct lfs *, struct segment *, char *, int); 146 void lfs_check_segsum(struct lfs *, struct segment *, char *, int); 147 #endif /* DEBUG */ 148 149 /* lfs_inode.c */ 150 struct dinode *lfs_ifind(struct lfs *, ino_t, struct buf *); 151 152 /* lfs_segment.c */ 153 void lfs_imtime(struct lfs *); 154 int lfs_vflush(struct vnode *); 155 int lfs_writevnodes(struct lfs *, struct mount *, struct segment *, int); 156 int lfs_segwrite(struct mount *, int); 157 void lfs_writefile(struct lfs *, struct segment *, struct vnode *); 158 int lfs_writeinode(struct lfs *, struct segment *, struct inode *); 159 int lfs_gatherblock(struct segment *, struct buf *, int *); 160 int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *)); 161 void lfs_updatemeta(struct segment *); 162 int lfs_initseg(struct lfs *); 163 void lfs_newseg(struct lfs *); 164 int lfs_writeseg(struct lfs *, struct segment *); 165 void lfs_writesuper(struct lfs *, daddr_t); 166 int lfs_match_data(struct lfs *, struct buf *); 167 int lfs_match_indir(struct lfs *, struct buf *); 168 int lfs_match_dindir(struct lfs *, struct buf *); 169 int lfs_match_tindir(struct lfs *, struct buf *); 170 void lfs_callback(struct buf *); 171 void lfs_supercallback(struct buf *); 172 void lfs_shellsort(struct buf **, ufs_daddr_t *, int); 173 int lfs_vref(struct vnode *); 174 void lfs_vunref(struct vnode *); 175 void lfs_vunref_head(struct vnode *); 176 177 /* lfs_subr.c */ 178 void lfs_seglock(struct lfs *, unsigned long); 179 void lfs_segunlock(struct lfs *); 180 181 /* lfs_syscalls.c */ 182 int lfs_fastvget(struct mount *, ino_t, ufs_daddr_t, struct vnode **, struct dinode *, int *); 183 struct buf *lfs_fakebuf(struct vnode *, int, size_t, caddr_t); 184 185 /* lfs_vfsops.c */ 186 void lfs_init(void); 187 void lfs_reinit(void); 188 void lfs_done(void); 189 int lfs_mountroot(void); 190 int lfs_mount(struct mount *, const char *, void *, struct nameidata *, struct proc *); 191 int lfs_mountfs(struct vnode *, struct mount *, struct proc *); 192 int lfs_unmount(struct mount *, int, struct proc *); 193 int lfs_statfs(struct mount *, struct statfs *, struct proc *); 194 int lfs_sync(struct mount *, int, struct ucred *, struct proc *); 195 int lfs_vget(struct mount *, ino_t, struct vnode **); 196 int lfs_fhtovp(struct mount *, struct fid *, struct vnode **); 197 int lfs_vptofh(struct vnode *, struct fid *); 198 int lfs_sysctl(int *, u_int, void *, size_t *, void *, size_t, struct proc *); 199 200 /* lfs_vnops.c */ 201 void lfs_unmark_vnode(struct vnode *); 202 void lfs_itimes(struct inode *, struct timespec *, struct timespec *, 203 struct timespec *); 204 205 int lfs_balloc (void *); 206 int lfs_valloc (void *); 207 int lfs_vfree (void *); 208 int lfs_bwrite (void *); 209 int lfs_update (void *); 210 int lfs_truncate(void *); 211 int lfs_blkatoff(void *); 212 int lfs_fsync (void *); 213 int lfs_symlink (void *); 214 int lfs_mknod (void *); 215 int lfs_create (void *); 216 int lfs_mkdir (void *); 217 int lfs_read (void *); 218 int lfs_remove (void *); 219 int lfs_rmdir (void *); 220 int lfs_link (void *); 221 int lfs_rename (void *); 222 int lfs_getattr (void *); 223 int lfs_setattr (void *); 224 int lfs_close (void *); 225 int lfs_inactive(void *); 226 int lfs_reclaim (void *); 227 int lfs_write (void *); 228 int lfs_whiteout(void *); 229 int lfs_getpages(void *); 230 int lfs_putpages(void *); 231 232 __END_DECLS 233 extern int lfs_mount_type; 234 extern int (**lfs_vnodeop_p)(void *); 235 extern int (**lfs_specop_p)(void *); 236 extern int (**lfs_fifoop_p)(void *); 237 extern struct genfs_ops lfs_genfsops; 238
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