lfs_extern.h revision 1.52
1 /* $NetBSD: lfs_extern.h,v 1.52 2003/07/12 16:17:07 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000, 2001, 2002, 2003 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 #ifndef _UFS_LFS_LFS_EXTERN_H_ 74 #define _UFS_LFS_LFS_EXTERN_H_ 75 76 #ifdef _KERNEL 77 #include <sys/mallocvar.h> 78 79 MALLOC_DECLARE(M_SEGMENT); 80 #endif 81 82 /* Copied from ext2fs for ITIMES. XXX This is a bogus use of v_tag. */ 83 #define IS_LFS_VNODE(vp) (vp->v_tag == VT_LFS) 84 85 /* 86 * Sysctl values for LFS. 87 */ 88 #define LFS_WRITEINDIR 1 /* flush indirect blocks on non-checkpoint writes */ 89 #define LFS_CLEAN_VNHEAD 2 /* put prev unrefed cleaned vnodes on head of free list */ 90 #define LFS_DOSTATS 3 91 #define LFS_MAXPAGES 4 92 #define LFS_MAXID 5 93 94 #define LFS_NAMES { \ 95 { 0, 0 }, \ 96 { "flushindir", CTLTYPE_INT }, \ 97 { "clean_vnhead", CTLTYPE_INT }, \ 98 { "dostats", CTLTYPE_INT }, \ 99 { "maxpages", CTLTYPE_INT }, \ 100 } 101 102 struct fid; 103 struct mount; 104 struct nameidata; 105 struct proc; 106 struct statfs; 107 struct timeval; 108 struct inode; 109 struct uio; 110 struct mbuf; 111 struct ufs1_dinode; 112 struct buf; 113 struct vnode; 114 struct dlfs; 115 struct lfs; 116 struct segment; 117 struct ucred; 118 struct block_info; 119 120 extern int lfs_allclean_wakeup; 121 extern struct pool lfs_inode_pool; /* memory pool for inodes */ 122 extern struct pool lfs_dinode_pool; /* memory pool for dinodes */ 123 extern struct pool lfs_inoext_pool; /* memory pool for inode extension */ 124 125 extern int locked_queue_count; 126 extern long locked_queue_bytes; 127 extern int lfs_subsys_pages; 128 extern int lfs_dirvcount; 129 extern struct simplelock lfs_subsys_lock; 130 131 __BEGIN_DECLS 132 /* lfs_alloc.c */ 133 int lfs_rf_valloc(struct lfs *, ino_t, int, struct proc *, struct vnode **); 134 void lfs_vcreate(struct mount *, ino_t, struct vnode *); 135 /* lfs_bio.c */ 136 int lfs_availwait(struct lfs *, int); 137 int lfs_bwrite_ext(struct buf *, int); 138 int lfs_fits(struct lfs *, int); 139 void lfs_flush_fs(struct lfs *, int); 140 void lfs_flush(struct lfs *, int); 141 int lfs_check(struct vnode *, daddr_t, int); 142 void lfs_freebuf(struct lfs *, struct buf *); 143 struct buf *lfs_newbuf(struct lfs *, struct vnode *, daddr_t, size_t, int); 144 void lfs_countlocked(int *, long *, char *); 145 int lfs_reserve(struct lfs *, struct vnode *, struct vnode *, int); 146 147 /* lfs_cksum.c */ 148 u_int32_t cksum(void *, size_t); 149 u_int32_t lfs_sb_cksum(struct dlfs *); 150 151 /* lfs_debug.c */ 152 #ifdef DEBUG 153 int lfs_bwrite_log(struct buf *, char *, int); 154 void lfs_dumplog(void); 155 void lfs_dump_super(struct lfs *); 156 void lfs_dump_dinode(struct ufs1_dinode *); 157 void lfs_check_bpp(struct lfs *, struct segment *, char *, int); 158 void lfs_check_segsum(struct lfs *, struct segment *, char *, int); 159 #endif /* DEBUG */ 160 161 /* lfs_inode.c */ 162 struct ufs1_dinode *lfs_ifind(struct lfs *, ino_t, struct buf *); 163 164 /* lfs_segment.c */ 165 void lfs_imtime(struct lfs *); 166 int lfs_vflush(struct vnode *); 167 int lfs_writevnodes(struct lfs *, struct mount *, struct segment *, int); 168 int lfs_segwrite(struct mount *, int); 169 void lfs_writefile(struct lfs *, struct segment *, struct vnode *); 170 int lfs_writeinode(struct lfs *, struct segment *, struct inode *); 171 int lfs_gatherblock(struct segment *, struct buf *, int *); 172 int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *)); 173 void lfs_update_single(struct lfs *, struct segment *, daddr_t, int32_t, int); 174 void lfs_updatemeta(struct segment *); 175 int lfs_initseg(struct lfs *); 176 void lfs_newseg(struct lfs *); 177 int lfs_writeseg(struct lfs *, struct segment *); 178 void lfs_writesuper(struct lfs *, daddr_t); 179 int lfs_match_data(struct lfs *, struct buf *); 180 int lfs_match_indir(struct lfs *, struct buf *); 181 int lfs_match_dindir(struct lfs *, struct buf *); 182 int lfs_match_tindir(struct lfs *, struct buf *); 183 void lfs_callback(struct buf *); 184 void lfs_supercallback(struct buf *); 185 /* XXX ondisk32 */ 186 void lfs_shellsort(struct buf **, int32_t *, int, int); 187 int lfs_vref(struct vnode *); 188 void lfs_vunref(struct vnode *); 189 void lfs_vunref_head(struct vnode *); 190 191 /* lfs_subr.c */ 192 void lfs_setup_resblks(struct lfs *); 193 void lfs_pad_check(unsigned char *, int, char *, int); 194 void lfs_free_resblks(struct lfs *); 195 void *lfs_malloc(struct lfs *, size_t, int); 196 void lfs_free(struct lfs *, void *, int); 197 int lfs_seglock(struct lfs *, unsigned long); 198 void lfs_segunlock(struct lfs *); 199 int lfs_writer_enter(struct lfs *, const char *); 200 void lfs_writer_leave(struct lfs *); 201 202 /* lfs_syscalls.c */ 203 int lfs_fastvget(struct mount *, ino_t, daddr_t, struct vnode **, struct ufs1_dinode *); 204 struct buf *lfs_fakebuf(struct lfs *, struct vnode *, int, size_t, caddr_t); 205 int lfs_do_segclean(struct lfs *, unsigned long); 206 void lfs_fakebuf_iodone(struct buf *); 207 int lfs_segwait(fsid_t *, struct timeval *); 208 int lfs_bmapv(struct proc *, fsid_t *, struct block_info *, int); 209 int lfs_markv(struct proc *, fsid_t *, struct block_info *, int); 210 211 /* lfs_vfsops.c */ 212 void lfs_init(void); 213 void lfs_reinit(void); 214 void lfs_done(void); 215 int lfs_mountroot(void); 216 int lfs_mount(struct mount *, const char *, void *, struct nameidata *, struct proc *); 217 int lfs_unmount(struct mount *, int, struct proc *); 218 int lfs_statfs(struct mount *, struct statfs *, struct proc *); 219 int lfs_sync(struct mount *, int, struct ucred *, struct proc *); 220 int lfs_vget(struct mount *, ino_t, struct vnode **); 221 int lfs_fhtovp(struct mount *, struct fid *, struct vnode **); 222 int lfs_vptofh(struct vnode *, struct fid *); 223 int lfs_sysctl(int *, u_int, void *, size_t *, void *, size_t, struct proc *); 224 void lfs_vinit(struct mount *mp, struct vnode *); 225 226 /* lfs_vnops.c */ 227 void lfs_unmark_vnode(struct vnode *); 228 void lfs_itimes(struct inode *, struct timespec *, struct timespec *, 229 struct timespec *); 230 int lfs_gop_alloc(struct vnode *, off_t, off_t, int, struct ucred *); 231 void lfs_gop_size(struct vnode *, off_t, off_t *, int); 232 int lfs_putpages_ext(void *, int); 233 int lfs_gatherpages(struct vnode *); 234 235 int lfs_balloc (void *); 236 int lfs_valloc (void *); 237 int lfs_vfree (void *); 238 int lfs_bwrite (void *); 239 int lfs_update (void *); 240 int lfs_truncate (void *); 241 int lfs_blkatoff (void *); 242 int lfs_fsync (void *); 243 int lfs_symlink (void *); 244 int lfs_mknod (void *); 245 int lfs_create (void *); 246 int lfs_mkdir (void *); 247 int lfs_read (void *); 248 int lfs_remove (void *); 249 int lfs_rmdir (void *); 250 int lfs_link (void *); 251 int lfs_mmap (void *); 252 int lfs_rename (void *); 253 int lfs_getattr (void *); 254 int lfs_setattr (void *); 255 int lfs_close (void *); 256 int lfsspec_close(void *); 257 int lfsfifo_close(void *); 258 int lfs_fcntl (void *); 259 int lfs_inactive (void *); 260 int lfs_reclaim (void *); 261 int lfs_strategy (void *); 262 int lfs_write (void *); 263 int lfs_getpages (void *); 264 int lfs_putpages (void *); 265 266 __END_DECLS 267 extern int lfs_mount_type; 268 extern int (**lfs_vnodeop_p)(void *); 269 extern int (**lfs_specop_p)(void *); 270 extern int (**lfs_fifoop_p)(void *); 271 extern struct genfs_ops lfs_genfsops; 272 273 #endif /* !_UFS_LFS_LFS_EXTERN_H_ */ 274
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