1 /* $NetBSD: lfs_extern.h,v 1.118 2020/02/23 08:49:46 riastradh 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@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_DEBUGLOG 8 85 #define LFS_IGNORE_LAZY_SYNC 9 86 87 /* not ours */ 88 struct fid; 89 struct mount; 90 struct nameidata; 91 struct proc; 92 struct statvfs; 93 struct timeval; 94 struct uio; 95 struct mbuf; 96 struct buf; 97 struct vnode; 98 99 /* ours */ 100 struct inode; 101 union lfs_dinode; 102 struct dlfs; 103 struct lfs; 104 struct segment; 105 struct block_info; 106 107 __BEGIN_DECLS 108 109 #if defined(_KERNEL) 110 111 extern kcondvar_t lfs_allclean_wakeup; 112 extern struct pool lfs_inode_pool; /* memory pool for inodes */ 113 extern struct pool lfs_dinode_pool; /* memory pool for dinodes */ 114 extern struct pool lfs_inoext_pool; /* memory pool for inode extension */ 115 extern struct pool lfs_lbnentry_pool; /* memory pool for balloc accounting */ 116 117 extern int locked_queue_count; 118 extern long locked_queue_bytes; 119 extern int lfs_subsys_pages; 120 extern int lfs_dirvcount; 121 extern kmutex_t lfs_lock; 122 extern int lfs_debug_log_subsys[]; 123 extern kcondvar_t lfs_writing_cv; 124 extern kcondvar_t locked_queue_cv; 125 126 /* lfs_alloc.c */ 127 int lfs_valloc(struct vnode *, int, kauth_cred_t, ino_t *, int *); 128 int lfs_valloc_fixed(struct lfs *, ino_t, int); 129 int lfs_vfree(struct vnode *, ino_t, int); 130 void lfs_order_freelist(struct lfs *, ino_t **, size_t *); 131 int lfs_extend_ifile(struct lfs *, kauth_cred_t); 132 void lfs_orphan(struct lfs *, ino_t); 133 void lfs_free_orphans(struct lfs *, ino_t *, size_t); 134 135 /* lfs_balloc.c */ 136 int lfs_balloc(struct vnode *, off_t, int, kauth_cred_t, int, struct buf **); 137 void lfs_register_block(struct vnode *, daddr_t); 138 void lfs_deregister_block(struct vnode *, daddr_t); 139 void lfs_deregister_all(struct vnode *); 140 141 /* lfs_bio.c */ 142 int lfs_availwait(struct lfs *, int); 143 int lfs_bwrite_ext(struct buf *, int); 144 int lfs_fits(struct lfs *, int); 145 void lfs_flush_fs(struct lfs *, int); 146 void lfs_flush(struct lfs *, int, int); 147 int lfs_check(struct vnode *, daddr_t, int); 148 void lfs_freebuf(struct lfs *, struct buf *); 149 struct buf *lfs_newbuf(struct lfs *, struct vnode *, daddr_t, size_t, int); 150 void lfs_countlocked(int *, long *, const char *); 151 int lfs_reserve(struct lfs *, struct vnode *, struct vnode *, int); 152 int lfs_max_bufs(void); 153 int lfs_wait_bufs(void); 154 155 /* lfs_debug.c */ 156 #ifdef DEBUG 157 int lfs_bwrite_log(struct buf *, const char *, int); 158 void lfs_dumplog(void); 159 void lfs_dump_super(struct lfs *); 160 void lfs_dump_dinode(struct lfs *, union lfs_dinode *); 161 void lfs_check_bpp(struct lfs *, struct segment *, char *, int); 162 void lfs_check_segsum(struct lfs *, struct segment *, char *, int); 163 void lfs_debug_log(int, const char *, ...); 164 #endif /* DEBUG */ 165 166 /* lfs_inode.c */ 167 int lfs_update(struct vnode *, const struct timespec *, const struct timespec *, 168 int); 169 int lfs_truncate(struct vnode *, off_t, int, kauth_cred_t); 170 union lfs_dinode *lfs_ifind(struct lfs *, ino_t, struct buf *); 171 void lfs_finalize_ino_seguse(struct lfs *, struct inode *); 172 void lfs_finalize_fs_seguse(struct lfs *); 173 174 /* lfs_rename.c */ 175 int lfs_rename(void *); 176 177 /* lfs_rfw.c */ 178 int lfs_rf_valloc(struct lfs *, ino_t, int, struct lwp *, struct vnode **); 179 void lfs_roll_forward(struct lfs *, struct mount *, struct lwp *); 180 181 /* lfs_segment.c */ 182 void lfs_imtime(struct lfs *); 183 int lfs_vflush(struct vnode *); 184 int lfs_segwrite(struct mount *, int); 185 int lfs_writefile(struct lfs *, struct segment *, struct vnode *); 186 int lfs_writeinode(struct lfs *, struct segment *, struct inode *); 187 int lfs_gatherblock(struct segment *, struct buf *, kmutex_t *); 188 int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *)); 189 void lfs_update_single(struct lfs *, struct segment *, struct vnode *, 190 daddr_t, daddr_t, int); 191 void lfs_updatemeta(struct segment *); 192 int lfs_rewind(struct lfs *, int); 193 void lfs_unset_inval_all(struct lfs *); 194 int lfs_initseg(struct lfs *); 195 int lfs_writeseg(struct lfs *, struct segment *); 196 void lfs_writesuper(struct lfs *, daddr_t); 197 int lfs_match_data(struct lfs *, struct buf *); 198 int lfs_match_indir(struct lfs *, struct buf *); 199 int lfs_match_dindir(struct lfs *, struct buf *); 200 int lfs_match_tindir(struct lfs *, struct buf *); 201 void lfs_free_aiodone(struct buf *); 202 void lfs_acquire_finfo(struct lfs *fs, ino_t, int); 203 void lfs_release_finfo(struct lfs *fs); 204 205 /* lfs_subr.c */ 206 void lfs_setup_resblks(struct lfs *); 207 void lfs_pad_check(unsigned char *, int, char *, int); 208 void lfs_free_resblks(struct lfs *); 209 void *lfs_malloc(struct lfs *, size_t, int); 210 void lfs_free(struct lfs *, void *, int); 211 int lfs_seglock(struct lfs *, unsigned long); 212 void lfs_segunlock(struct lfs *); 213 void lfs_segunlock_relock(struct lfs *); 214 void lfs_writer_enter(struct lfs *, const char *); 215 int lfs_writer_tryenter(struct lfs *); 216 void lfs_writer_leave(struct lfs *); 217 void lfs_wakeup_cleaner(struct lfs *); 218 219 /* lfs_syscalls.c */ 220 int lfs_do_segclean(struct lfs *, unsigned long); 221 int lfs_segwait(fsid_t *, struct timeval *); 222 int lfs_bmapv(struct lwp *, fsid_t *, struct block_info *, int); 223 int lfs_markv(struct lwp *, fsid_t *, struct block_info *, int); 224 225 /* lfs_vfsops.c */ 226 VFS_PROTOS(lfs); 227 void lfs_vinit(struct mount *, struct vnode **); 228 int lfs_resize_fs(struct lfs *, int); 229 230 /* lfs_vnops.c */ 231 void lfs_mark_vnode(struct vnode *); 232 void lfs_unmark_vnode(struct vnode *); 233 int lfs_gop_alloc(struct vnode *, off_t, off_t, int, kauth_cred_t); 234 void lfs_gop_size(struct vnode *, off_t, off_t *, int); 235 int lfs_putpages_ext(void *, int); 236 int lfs_gatherpages(struct vnode *); 237 int lfs_flush_dirops(struct lfs *); 238 int lfs_flush_pchain(struct lfs *); 239 240 int lfs_bwrite (void *); 241 int lfs_fsync (void *); 242 int lfs_symlink (void *); 243 int lfs_mknod (void *); 244 int lfs_create (void *); 245 int lfs_mkdir (void *); 246 int lfs_read (void *); 247 int lfs_remove (void *); 248 int lfs_rmdir (void *); 249 int lfs_link (void *); 250 int lfs_mmap (void *); 251 int lfs_rename (void *); 252 int lfs_getattr (void *); 253 int lfs_setattr (void *); 254 int lfs_close (void *); 255 int lfsspec_close(void *); 256 int lfsfifo_close(void *); 257 int lfs_fcntl (void *); 258 int lfs_inactive (void *); 259 int lfs_reclaim (void *); 260 int lfs_strategy (void *); 261 int lfs_write (void *); 262 int lfs_getpages (void *); 263 int lfs_putpages (void *); 264 265 int lfs_bufrd(struct vnode *, struct uio *, int, kauth_cred_t); 266 int lfs_bufwr(struct vnode *, struct uio *, int, kauth_cred_t); 267 268 extern int lfs_mount_type; 269 extern int (**lfs_vnodeop_p)(void *); 270 extern int (**lfs_specop_p)(void *); 271 extern int (**lfs_fifoop_p)(void *); 272 extern const struct genfs_ops lfs_genfsops; 273 274 #endif /* defined(_KERNEL) */ 275 276 /* lfs_cksum.c */ 277 uint32_t cksum(void *, size_t); 278 uint32_t lfs_cksum_part(void *, size_t, uint32_t); 279 #define lfs_cksum_fold(sum) (sum) 280 uint32_t lfs_sb_cksum(struct lfs *); 281 282 __END_DECLS 283 284 #endif /* !_UFS_LFS_LFS_EXTERN_H_ */ 285