lfs_extern.h revision 1.85
1 /* $NetBSD: lfs_extern.h,v 1.85 2006/07/13 12:00:26 martin 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 struct fid; 95 struct mount; 96 struct nameidata; 97 struct proc; 98 struct statvfs; 99 struct timeval; 100 struct inode; 101 struct uio; 102 struct mbuf; 103 struct ufs1_dinode; 104 struct buf; 105 struct vnode; 106 struct dlfs; 107 struct lfs; 108 struct segment; 109 struct block_info; 110 111 #if defined(_KERNEL) 112 113 extern int lfs_allclean_wakeup; 114 extern struct pool lfs_inode_pool; /* memory pool for inodes */ 115 extern struct pool lfs_dinode_pool; /* memory pool for dinodes */ 116 extern struct pool lfs_inoext_pool; /* memory pool for inode extension */ 117 extern struct pool lfs_lbnentry_pool; /* memory pool for balloc accounting */ 118 119 extern int locked_queue_count; 120 extern long locked_queue_bytes; 121 extern int lfs_subsys_pages; 122 extern int lfs_dirvcount; 123 extern struct simplelock lfs_subsys_lock; 124 extern int lfs_debug_log_subsys[]; 125 126 __BEGIN_DECLS 127 /* lfs_alloc.c */ 128 int lfs_rf_valloc(struct lfs *, ino_t, int, struct lwp *, struct vnode **); 129 void lfs_vcreate(struct mount *, ino_t, struct vnode *); 130 int lfs_valloc(struct vnode *, int, kauth_cred_t, struct vnode **); 131 int lfs_vfree(struct vnode *, ino_t, int); 132 void lfs_order_freelist(struct lfs *); 133 134 /* lfs_balloc.c */ 135 int lfs_balloc(struct vnode *, off_t, int, kauth_cred_t, int, struct buf **); 136 void lfs_register_block(struct vnode *, daddr_t); 137 void lfs_deregister_block(struct vnode *, daddr_t); 138 void lfs_deregister_all(struct vnode *); 139 140 /* lfs_bio.c */ 141 int lfs_availwait(struct lfs *, int); 142 int lfs_bwrite_ext(struct buf *, int); 143 int lfs_fits(struct lfs *, int); 144 void lfs_flush_fs(struct lfs *, int); 145 void lfs_flush(struct lfs *, int, int); 146 int lfs_check(struct vnode *, daddr_t, int); 147 void lfs_freebuf(struct lfs *, struct buf *); 148 struct buf *lfs_newbuf(struct lfs *, struct vnode *, daddr_t, size_t, int); 149 void lfs_countlocked(int *, long *, const char *); 150 int lfs_reserve(struct lfs *, struct vnode *, struct vnode *, int); 151 152 /* lfs_debug.c */ 153 #ifdef DEBUG 154 int lfs_bwrite_log(struct buf *, const char *, int); 155 void lfs_dumplog(void); 156 void lfs_dump_super(struct lfs *); 157 void lfs_dump_dinode(struct ufs1_dinode *); 158 void lfs_check_bpp(struct lfs *, struct segment *, char *, int); 159 void lfs_check_segsum(struct lfs *, struct segment *, char *, int); 160 void lfs_debug_log(int, const char *, ...); 161 #endif /* DEBUG */ 162 163 /* lfs_inode.c */ 164 int lfs_update(struct vnode *, const struct timespec *, const struct timespec *, 165 int); 166 int lfs_truncate(struct vnode *, off_t, int, kauth_cred_t, struct lwp *); 167 struct ufs1_dinode *lfs_ifind(struct lfs *, ino_t, struct buf *); 168 void lfs_finalize_ino_seguse(struct lfs *, struct inode *); 169 void lfs_finalize_fs_seguse(struct lfs *); 170 171 /* lfs_segment.c */ 172 void lfs_imtime(struct lfs *); 173 int lfs_vflush(struct vnode *); 174 int lfs_segwrite(struct mount *, int); 175 int lfs_writefile(struct lfs *, struct segment *, struct vnode *); 176 int lfs_writeinode(struct lfs *, struct segment *, struct inode *); 177 int lfs_gatherblock(struct segment *, struct buf *, int *); 178 int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *)); 179 void lfs_update_single(struct lfs *, struct segment *, struct vnode *, 180 daddr_t, int32_t, int); 181 void lfs_updatemeta(struct segment *); 182 int lfs_rewind(struct lfs *, int); 183 void lfs_unset_inval_all(struct lfs *); 184 int lfs_initseg(struct lfs *); 185 int lfs_writeseg(struct lfs *, struct segment *); 186 void lfs_writesuper(struct lfs *, daddr_t); 187 int lfs_match_data(struct lfs *, struct buf *); 188 int lfs_match_indir(struct lfs *, struct buf *); 189 int lfs_match_dindir(struct lfs *, struct buf *); 190 int lfs_match_tindir(struct lfs *, struct buf *); 191 void lfs_callback(struct buf *); 192 int lfs_vref(struct vnode *); 193 void lfs_vunref(struct vnode *); 194 void lfs_vunref_head(struct vnode *); 195 void lfs_acquire_finfo(struct lfs *fs, ino_t, int); 196 void lfs_release_finfo(struct lfs *fs); 197 198 /* lfs_subr.c */ 199 void lfs_setup_resblks(struct lfs *); 200 void lfs_pad_check(unsigned char *, int, char *, int); 201 void lfs_free_resblks(struct lfs *); 202 void *lfs_malloc(struct lfs *, size_t, int); 203 void lfs_free(struct lfs *, void *, int); 204 int lfs_seglock(struct lfs *, unsigned long); 205 void lfs_segunlock(struct lfs *); 206 void lfs_segunlock_relock(struct lfs *); 207 int lfs_writer_enter(struct lfs *, const char *); 208 void lfs_writer_leave(struct lfs *); 209 void lfs_wakeup_cleaner(struct lfs *); 210 211 /* lfs_syscalls.c */ 212 int lfs_fastvget(struct mount *, ino_t, daddr_t, struct vnode **, struct ufs1_dinode *); 213 struct buf *lfs_fakebuf(struct lfs *, struct vnode *, int, size_t, caddr_t); 214 int lfs_do_segclean(struct lfs *, unsigned long); 215 int lfs_segwait(fsid_t *, struct timeval *); 216 int lfs_bmapv(struct proc *, fsid_t *, struct block_info *, int); 217 int lfs_markv(struct proc *, fsid_t *, struct block_info *, int); 218 219 /* lfs_vfsops.c */ 220 void lfs_init(void); 221 void lfs_reinit(void); 222 void lfs_done(void); 223 int lfs_mountroot(void); 224 int lfs_mount(struct mount *, const char *, void *, struct nameidata *, struct lwp *); 225 int lfs_unmount(struct mount *, int, struct lwp *); 226 int lfs_statvfs(struct mount *, struct statvfs *, struct lwp *); 227 int lfs_sync(struct mount *, int, kauth_cred_t, struct lwp *); 228 int lfs_vget(struct mount *, ino_t, struct vnode **); 229 int lfs_fhtovp(struct mount *, struct fid *, struct vnode **); 230 int lfs_vptofh(struct vnode *, struct fid *, size_t *); 231 void lfs_vinit(struct mount *, struct vnode **); 232 int lfs_resize_fs(struct lfs *, int); 233 234 /* lfs_vnops.c */ 235 void lfs_mark_vnode(struct vnode *); 236 void lfs_unmark_vnode(struct vnode *); 237 int lfs_gop_alloc(struct vnode *, off_t, off_t, int, kauth_cred_t); 238 void lfs_gop_size(struct vnode *, off_t, off_t *, int); 239 int lfs_putpages_ext(void *, int); 240 int lfs_gatherpages(struct vnode *); 241 void lfs_flush_dirops(struct lfs *); 242 void lfs_flush_pchain(struct lfs *); 243 244 int lfs_bwrite (void *); 245 int lfs_fsync (void *); 246 int lfs_symlink (void *); 247 int lfs_mknod (void *); 248 int lfs_create (void *); 249 int lfs_mkdir (void *); 250 int lfs_read (void *); 251 int lfs_remove (void *); 252 int lfs_rmdir (void *); 253 int lfs_link (void *); 254 int lfs_mmap (void *); 255 int lfs_rename (void *); 256 int lfs_getattr (void *); 257 int lfs_setattr (void *); 258 int lfs_close (void *); 259 int lfsspec_close(void *); 260 int lfsfifo_close(void *); 261 int lfs_fcntl (void *); 262 int lfs_inactive (void *); 263 int lfs_reclaim (void *); 264 int lfs_strategy (void *); 265 int lfs_write (void *); 266 int lfs_getpages (void *); 267 int lfs_putpages (void *); 268 269 #ifdef SYSCTL_SETUP_PROTO 270 SYSCTL_SETUP_PROTO(sysctl_vfs_lfs_setup); 271 #endif /* SYSCTL_SETUP_PROTO */ 272 273 extern int lfs_mount_type; 274 extern int (**lfs_vnodeop_p)(void *); 275 extern int (**lfs_specop_p)(void *); 276 extern int (**lfs_fifoop_p)(void *); 277 extern const struct genfs_ops lfs_genfsops; 278 279 #endif /* defined(_KERNEL) */ 280 281 /* lfs_cksum.c */ 282 u_int32_t cksum(void *, size_t); 283 u_int32_t lfs_cksum_part(void *, size_t, u_int32_t); 284 #define lfs_cksum_fold(sum) (sum) 285 u_int32_t lfs_sb_cksum(struct dlfs *); 286 287 __END_DECLS 288 289 #endif /* !_UFS_LFS_LFS_EXTERN_H_ */ 290
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