1 /* $NetBSD: lfs_extern.h,v 1.122 2025/09/17 04:01:53 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /*- 32 * Copyright (c) 1991, 1993, 1994 33 * The Regents of the University of California. All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. Neither the name of the University nor the names of its contributors 44 * may be used to endorse or promote products derived from this software 45 * without specific prior written permission. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 57 * SUCH DAMAGE. 58 * 59 * @(#)lfs_extern.h 8.6 (Berkeley) 5/8/95 60 */ 61 62 #ifndef _UFS_LFS_LFS_EXTERN_H_ 63 #define _UFS_LFS_LFS_EXTERN_H_ 64 65 #ifdef _KERNEL 66 #include <sys/mallocvar.h> 67 68 MALLOC_DECLARE(M_SEGMENT); 69 #endif 70 71 /* Copied from ext2fs for ITIMES. XXX This is a bogus use of v_tag. */ 72 #define IS_LFS_VNODE(vp) (vp->v_tag == VT_LFS) 73 74 /* 75 * Sysctl values for LFS. 76 */ 77 #define LFS_WRITEINDIR 1 /* flush indirect blocks on non-checkpoint writes */ 78 #define LFS_CLEAN_VNHEAD 2 /* put prev unrefed cleaned vnodes on head of free list */ 79 #define LFS_DOSTATS 3 80 #define LFS_MAXPAGES 4 81 #define LFS_FS_PAGETRIP 5 82 #define LFS_STATS 6 83 #define LFS_DO_RFW 7 84 #define LFS_DEBUG 8 85 #define LFS_DEBUG_FREELIST 1 86 #define LFS_DEBUG_LOG 2 87 #define LFS_IGNORE_LAZY_SYNC 9 88 #define LFS_RFW_LIMIT 10 89 90 /* not ours */ 91 struct fid; 92 struct mount; 93 struct nameidata; 94 struct proc; 95 struct statvfs; 96 struct timeval; 97 struct uio; 98 struct mbuf; 99 struct buf; 100 struct vnode; 101 struct work; 102 103 /* ours */ 104 struct inode; 105 union lfs_dinode; 106 struct dlfs; 107 struct lfs; 108 struct segment; 109 struct block_info; 110 111 __BEGIN_DECLS 112 113 #if defined(_KERNEL) 114 115 extern kcondvar_t lfs_allclean_wakeup; 116 extern struct pool lfs_inode_pool; /* memory pool for inodes */ 117 extern struct pool lfs_dinode_pool; /* memory pool for dinodes */ 118 extern struct pool lfs_inoext_pool; /* memory pool for inode extension */ 119 extern struct pool lfs_lbnentry_pool; /* memory pool for balloc accounting */ 120 121 extern int locked_queue_count; 122 extern long locked_queue_bytes; 123 extern int lfs_do_check_freelist; 124 extern int lfs_subsys_pages; 125 extern int lfs_dirvcount; 126 extern kmutex_t lfs_lock; 127 extern int lfs_debug_log_subsys[]; 128 extern kcondvar_t lfs_writing_cv; 129 extern kcondvar_t locked_queue_cv; 130 extern int lfs_rfw_max_psegs; 131 132 /* lfs_alloc.c */ 133 int lfs_valloc(struct vnode *, int, kauth_cred_t, ino_t *, int *); 134 int lfs_valloc_fixed(struct lfs *, ino_t, int); 135 int lfs_vfree(struct vnode *, ino_t, int); 136 void lfs_order_freelist(struct lfs *, ino_t **, size_t *); 137 int lfs_extend_ifile(struct lfs *, kauth_cred_t); 138 void lfs_orphan(struct lfs *, ino_t); 139 void lfs_free_orphans(struct lfs *, ino_t *, size_t); 140 #ifdef DEBUG 141 void lfs_check_freelist(struct lfs *, const char *, int); 142 # define DEBUG_CHECK_FREELIST(fs) \ 143 do { \ 144 if (lfs_do_check_freelist) \ 145 lfs_check_freelist((fs), __func__, __LINE__); \ 146 } while (0) 147 #else /* ! DEBUG */ 148 # define DEBUG_CHECK_FREELIST(fs) 149 #endif /* DEBUG */ 150 151 /* lfs_balloc.c */ 152 int lfs_balloc(struct vnode *, off_t, int, kauth_cred_t, int, struct buf **); 153 void lfs_register_block(struct vnode *, daddr_t); 154 void lfs_deregister_block(struct vnode *, daddr_t); 155 void lfs_deregister_all(struct vnode *); 156 157 /* lfs_bio.c */ 158 int lfs_availwait(struct lfs *, int); 159 int lfs_bwrite_ext(struct buf *, int); 160 int lfs_fits(struct lfs *, int); 161 void lfs_flush_fs(struct lfs *, int); 162 void lfs_flush(struct lfs *, int, int); 163 int lfs_check(struct vnode *, daddr_t, int); 164 void lfs_freebuf(struct lfs *, struct buf *); 165 struct buf *lfs_newbuf(struct lfs *, struct vnode *, daddr_t, size_t, int); 166 void lfs_countlocked(int *, long *, const char *); 167 int lfs_reserve(struct lfs *, struct vnode *, struct vnode *, int); 168 int lfs_max_bufs(void); 169 int lfs_wait_bufs(void); 170 171 /* lfs_debug.c */ 172 #ifdef DEBUG 173 int lfs_bwrite_log(struct buf *, const char *, int); 174 void lfs_dumplog(void); 175 void lfs_dump_super(struct lfs *); 176 void lfs_dump_dinode(struct lfs *, union lfs_dinode *); 177 void lfs_check_bpp(struct lfs *, struct segment *, char *, int); 178 void lfs_check_segsum(struct lfs *, struct segment *, char *, int); 179 void lfs_debug_log(int, const char *, ...); 180 #endif /* DEBUG */ 181 182 /* lfs_inode.c */ 183 int lfs_update(struct vnode *, const struct timespec *, const struct timespec *, 184 int); 185 int lfs_truncate(struct vnode *, off_t, int, kauth_cred_t); 186 union lfs_dinode *lfs_ifind(struct lfs *, ino_t, struct buf *); 187 void lfs_finalize_ino_seguse(struct lfs *, struct inode *); 188 void lfs_finalize_fs_seguse(struct lfs *); 189 190 /* lfs_rename.c */ 191 int lfs_rename(void *); 192 193 /* lfs_rfw.c */ 194 int lfs_rf_valloc(struct lfs *, ino_t, int, struct lwp *, struct vnode **, union lfs_dinode *); 195 void lfs_roll_forward(struct lfs *, struct mount *, struct lwp *); 196 197 /* lfs_segment.c */ 198 void lfs_imtime(struct lfs *); 199 int lfs_vflush(struct vnode *); 200 int lfs_segwrite(struct mount *, int); 201 int lfs_writefile(struct lfs *, struct segment *, struct vnode *); 202 int lfs_writeinode(struct lfs *, struct segment *, struct inode *); 203 int lfs_gatherblock(struct segment *, struct buf *, kmutex_t *); 204 int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *)); 205 void lfs_update_single(struct lfs *, struct segment *, struct vnode *, 206 daddr_t, daddr_t, int); 207 void lfs_updatemeta(struct segment *); 208 int lfs_rewind(struct lfs *, int); 209 void lfs_unset_inval_all(struct lfs *); 210 int lfs_initseg(struct lfs *, uint16_t); 211 int lfs_writeseg(struct lfs *, struct segment *); 212 void lfs_writesuper(struct lfs *, daddr_t); 213 int lfs_match_data(struct lfs *, struct buf *); 214 int lfs_match_indir(struct lfs *, struct buf *); 215 int lfs_match_dindir(struct lfs *, struct buf *); 216 int lfs_match_tindir(struct lfs *, struct buf *); 217 void lfs_acquire_finfo(struct lfs *fs, ino_t, int); 218 void lfs_release_finfo(struct lfs *fs); 219 void lfs_cluster_work(struct work *wk, void *arg); 220 void lfs_super_work(struct work *wk, void *arg); 221 void lfs_free_work(struct work *wk, void *arg); 222 void lfs_free_aiodone(struct buf *); 223 224 /* lfs_subr.c */ 225 void lfs_setup_resblks(struct lfs *); 226 void lfs_pad_check(unsigned char *, int, char *, int); 227 void lfs_free_resblks(struct lfs *); 228 void *lfs_malloc(struct lfs *, size_t, int); 229 void lfs_free(struct lfs *, void *, int); 230 int lfs_seglock(struct lfs *, unsigned long); 231 void lfs_segunlock(struct lfs *); 232 void lfs_segunlock_relock(struct lfs *); 233 void lfs_writer_enter(struct lfs *, const char *); 234 int lfs_writer_tryenter(struct lfs *); 235 void lfs_writer_leave(struct lfs *); 236 void lfs_wakeup_cleaner(struct lfs *); 237 238 /* lfs_syscalls.c */ 239 int lfs_do_segclean(struct lfs *, unsigned long); 240 int lfs_segwait(fsid_t *, struct timeval *); 241 int lfs_bmapv(struct lwp *, fsid_t *, struct block_info *, int); 242 int lfs_markv(struct lwp *, fsid_t *, struct block_info *, int); 243 244 /* lfs_vfsops.c */ 245 VFS_PROTOS(lfs); 246 void lfs_vinit(struct mount *, struct vnode **); 247 int lfs_resize_fs(struct lfs *, int); 248 void lfs_reset_avail(struct lfs *); 249 250 /* lfs_vnops.c */ 251 void lfs_mark_vnode(struct vnode *); 252 void lfs_unmark_vnode(struct vnode *); 253 int lfs_gop_alloc(struct vnode *, off_t, off_t, int, kauth_cred_t); 254 void lfs_gop_size(struct vnode *, off_t, off_t *, int); 255 int lfs_putpages_ext(void *, int); 256 int lfs_gatherpages(struct vnode *); 257 int lfs_flush_dirops(struct lfs *); 258 int lfs_flush_pchain(struct lfs *); 259 260 int lfs_bwrite (void *); 261 int lfs_fsync (void *); 262 int lfs_symlink (void *); 263 int lfs_mknod (void *); 264 int lfs_create (void *); 265 int lfs_mkdir (void *); 266 int lfs_read (void *); 267 int lfs_remove (void *); 268 int lfs_rmdir (void *); 269 int lfs_link (void *); 270 int lfs_mmap (void *); 271 int lfs_rename (void *); 272 int lfs_getattr (void *); 273 int lfs_setattr (void *); 274 int lfs_close (void *); 275 int lfsspec_close(void *); 276 int lfsfifo_close(void *); 277 int lfs_fcntl (void *); 278 int lfs_inactive (void *); 279 int lfs_reclaim (void *); 280 int lfs_strategy (void *); 281 int lfs_write (void *); 282 int lfs_getpages (void *); 283 int lfs_putpages (void *); 284 285 int lfs_bufrd(struct vnode *, struct uio *, int, kauth_cred_t); 286 int lfs_bufwr(struct vnode *, struct uio *, int, kauth_cred_t); 287 288 extern int lfs_mount_type; 289 extern int (**lfs_vnodeop_p)(void *); 290 extern int (**lfs_specop_p)(void *); 291 extern int (**lfs_fifoop_p)(void *); 292 extern const struct genfs_ops lfs_genfsops; 293 294 #endif /* defined(_KERNEL) */ 295 296 /* lfs_cksum.c */ 297 uint32_t cksum(void *, size_t); 298 uint32_t lfs_cksum_part(void *, size_t, uint32_t); 299 #define lfs_cksum_fold(sum) (sum) 300 uint32_t lfs_sb_cksum(struct lfs *); 301 302 __END_DECLS 303 304 #endif /* !_UFS_LFS_LFS_EXTERN_H_ */ 305
Indexes created Sun Sep 21 14:09:52 GMT 2025