lfs_extern.h revision 1.78
1 /* $NetBSD: lfs_extern.h,v 1.78 2006/04/08 00:26:34 perseant 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. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)lfs_extern.h 8.6 (Berkeley) 5/8/95 67 */ 68 69 #ifndef _UFS_LFS_LFS_EXTERN_H_ 70 #define _UFS_LFS_LFS_EXTERN_H_ 71 72 #ifdef _KERNEL 73 #include <sys/mallocvar.h> 74 75 MALLOC_DECLARE(M_SEGMENT); 76 #endif 77 78 /* Copied from ext2fs for ITIMES. XXX This is a bogus use of v_tag. */ 79 #define IS_LFS_VNODE(vp) (vp->v_tag == VT_LFS) 80 81 /* 82 * Sysctl values for LFS. 83 */ 84 #define LFS_WRITEINDIR 1 /* flush indirect blocks on non-checkpoint writes */ 85 #define LFS_CLEAN_VNHEAD 2 /* put prev unrefed cleaned vnodes on head of free list */ 86 #define LFS_DOSTATS 3 87 #define LFS_MAXPAGES 4 88 #define LFS_FS_PAGETRIP 5 89 #define LFS_STATS 6 90 #define LFS_DO_RFW 7 91 #define LFS_DEBUGLOG 8 92 #define LFS_MAXID 9 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 { "debug", CTLTYPE_NODE }, \ 101 } 102 103 struct fid; 104 struct mount; 105 struct nameidata; 106 struct proc; 107 struct statvfs; 108 struct timeval; 109 struct inode; 110 struct uio; 111 struct mbuf; 112 struct ufs1_dinode; 113 struct buf; 114 struct vnode; 115 struct dlfs; 116 struct lfs; 117 struct segment; 118 struct ucred; 119 struct block_info; 120 121 extern int lfs_allclean_wakeup; 122 extern struct pool lfs_inode_pool; /* memory pool for inodes */ 123 extern struct pool lfs_dinode_pool; /* memory pool for dinodes */ 124 extern struct pool lfs_inoext_pool; /* memory pool for inode extension */ 125 extern struct pool lfs_lbnentry_pool; /* memory pool for balloc accounting */ 126 127 extern int locked_queue_count; 128 extern long locked_queue_bytes; 129 extern int lfs_subsys_pages; 130 extern int lfs_dirvcount; 131 extern struct simplelock lfs_subsys_lock; 132 extern int lfs_debug_log_subsys[]; 133 134 __BEGIN_DECLS 135 /* lfs_alloc.c */ 136 int lfs_rf_valloc(struct lfs *, ino_t, int, struct lwp *, struct vnode **); 137 void lfs_vcreate(struct mount *, ino_t, struct vnode *); 138 int lfs_valloc(struct vnode *, int, struct ucred *, struct vnode **); 139 int lfs_vfree(struct vnode *, ino_t, int); 140 void lfs_order_freelist(struct lfs *); 141 142 /* lfs_balloc.c */ 143 int lfs_balloc(struct vnode *, off_t, int, struct ucred *, int, struct buf **); 144 void lfs_register_block(struct vnode *, daddr_t); 145 void lfs_deregister_block(struct vnode *, daddr_t); 146 void lfs_deregister_all(struct vnode *); 147 148 /* lfs_bio.c */ 149 int lfs_availwait(struct lfs *, int); 150 int lfs_bwrite_ext(struct buf *, int); 151 int lfs_fits(struct lfs *, int); 152 void lfs_flush_fs(struct lfs *, int); 153 void lfs_flush(struct lfs *, int, int); 154 int lfs_check(struct vnode *, daddr_t, int); 155 void lfs_freebuf(struct lfs *, struct buf *); 156 struct buf *lfs_newbuf(struct lfs *, struct vnode *, daddr_t, size_t, int); 157 void lfs_countlocked(int *, long *, const char *); 158 int lfs_reserve(struct lfs *, struct vnode *, struct vnode *, int); 159 160 /* lfs_cksum.c */ 161 u_int32_t cksum(void *, size_t); 162 u_int32_t lfs_cksum_part(void *, size_t, u_int32_t); 163 #define lfs_cksum_fold(sum) (sum) 164 u_int32_t lfs_sb_cksum(struct dlfs *); 165 166 /* lfs_debug.c */ 167 #ifdef DEBUG 168 int lfs_bwrite_log(struct buf *, const char *, int); 169 void lfs_dumplog(void); 170 void lfs_dump_super(struct lfs *); 171 void lfs_dump_dinode(struct ufs1_dinode *); 172 void lfs_check_bpp(struct lfs *, struct segment *, char *, int); 173 void lfs_check_segsum(struct lfs *, struct segment *, char *, int); 174 void lfs_debug_log(int, const char *, ...); 175 #endif /* DEBUG */ 176 177 /* lfs_inode.c */ 178 int lfs_update(struct vnode *, const struct timespec *, const struct timespec *, 179 int); 180 int lfs_truncate(struct vnode *, off_t, int, struct ucred *, struct lwp *); 181 struct ufs1_dinode *lfs_ifind(struct lfs *, ino_t, struct buf *); 182 183 /* lfs_segment.c */ 184 void lfs_imtime(struct lfs *); 185 int lfs_vflush(struct vnode *); 186 int lfs_segwrite(struct mount *, int); 187 int lfs_writefile(struct lfs *, struct segment *, struct vnode *); 188 int lfs_writeinode(struct lfs *, struct segment *, struct inode *); 189 int lfs_gatherblock(struct segment *, struct buf *, int *); 190 int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *)); 191 void lfs_update_single(struct lfs *, struct segment *, struct vnode *, 192 daddr_t, int32_t, int); 193 void lfs_updatemeta(struct segment *); 194 int lfs_rewind(struct lfs *, int); 195 void lfs_unset_inval_all(struct lfs *); 196 int lfs_initseg(struct lfs *); 197 int lfs_writeseg(struct lfs *, struct segment *); 198 void lfs_writesuper(struct lfs *, daddr_t); 199 int lfs_match_data(struct lfs *, struct buf *); 200 int lfs_match_indir(struct lfs *, struct buf *); 201 int lfs_match_dindir(struct lfs *, struct buf *); 202 int lfs_match_tindir(struct lfs *, struct buf *); 203 void lfs_callback(struct buf *); 204 int lfs_vref(struct vnode *); 205 void lfs_vunref(struct vnode *); 206 void lfs_vunref_head(struct vnode *); 207 208 /* lfs_subr.c */ 209 void lfs_setup_resblks(struct lfs *); 210 void lfs_pad_check(unsigned char *, int, char *, int); 211 void lfs_free_resblks(struct lfs *); 212 void *lfs_malloc(struct lfs *, size_t, int); 213 void lfs_free(struct lfs *, void *, int); 214 int lfs_seglock(struct lfs *, unsigned long); 215 void lfs_segunlock(struct lfs *); 216 void lfs_segunlock_relock(struct lfs *); 217 int lfs_writer_enter(struct lfs *, const char *); 218 void lfs_writer_leave(struct lfs *); 219 220 /* lfs_syscalls.c */ 221 int lfs_fastvget(struct mount *, ino_t, daddr_t, struct vnode **, struct ufs1_dinode *); 222 struct buf *lfs_fakebuf(struct lfs *, struct vnode *, int, size_t, caddr_t); 223 int lfs_do_segclean(struct lfs *, unsigned long); 224 int lfs_segwait(fsid_t *, struct timeval *); 225 int lfs_bmapv(struct proc *, fsid_t *, struct block_info *, int); 226 int lfs_markv(struct proc *, fsid_t *, struct block_info *, int); 227 228 /* lfs_vfsops.c */ 229 void lfs_init(void); 230 void lfs_reinit(void); 231 void lfs_done(void); 232 int lfs_mountroot(void); 233 int lfs_mount(struct mount *, const char *, void *, struct nameidata *, struct lwp *); 234 int lfs_unmount(struct mount *, int, struct lwp *); 235 int lfs_statvfs(struct mount *, struct statvfs *, struct lwp *); 236 int lfs_sync(struct mount *, int, struct ucred *, struct lwp *); 237 int lfs_vget(struct mount *, ino_t, struct vnode **); 238 int lfs_fhtovp(struct mount *, struct fid *, struct vnode **); 239 int lfs_vptofh(struct vnode *, struct fid *); 240 void lfs_vinit(struct mount *, struct vnode **); 241 int lfs_resize_fs(struct lfs *, int); 242 243 /* lfs_vnops.c */ 244 void lfs_mark_vnode(struct vnode *); 245 void lfs_unmark_vnode(struct vnode *); 246 int lfs_gop_alloc(struct vnode *, off_t, off_t, int, struct ucred *); 247 void lfs_gop_size(struct vnode *, off_t, off_t *, int); 248 int lfs_putpages_ext(void *, int); 249 int lfs_gatherpages(struct vnode *); 250 void lfs_flush_pchain(struct lfs *); 251 252 int lfs_bwrite (void *); 253 int lfs_fsync (void *); 254 int lfs_symlink (void *); 255 int lfs_mknod (void *); 256 int lfs_create (void *); 257 int lfs_mkdir (void *); 258 int lfs_read (void *); 259 int lfs_remove (void *); 260 int lfs_rmdir (void *); 261 int lfs_link (void *); 262 int lfs_mmap (void *); 263 int lfs_rename (void *); 264 int lfs_getattr (void *); 265 int lfs_setattr (void *); 266 int lfs_close (void *); 267 int lfsspec_close(void *); 268 int lfsfifo_close(void *); 269 int lfs_fcntl (void *); 270 int lfs_inactive (void *); 271 int lfs_reclaim (void *); 272 int lfs_strategy (void *); 273 int lfs_write (void *); 274 int lfs_getpages (void *); 275 int lfs_putpages (void *); 276 277 #ifdef SYSCTL_SETUP_PROTO 278 SYSCTL_SETUP_PROTO(sysctl_vfs_lfs_setup); 279 #endif /* SYSCTL_SETUP_PROTO */ 280 281 __END_DECLS 282 extern int lfs_mount_type; 283 extern int (**lfs_vnodeop_p)(void *); 284 extern int (**lfs_specop_p)(void *); 285 extern int (**lfs_fifoop_p)(void *); 286 extern const struct genfs_ops lfs_genfsops; 287 288 #endif /* !_UFS_LFS_LFS_EXTERN_H_ */ 289
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