| 1 | /* $NetBSD: lfs_extern.h,v 1.111 2016/06/20 03:29:52 dholland 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 | #define LFS_MAXID 10 |
| 87 | |
| 88 | /* not ours */ |
| 89 | struct fid; |
| 90 | struct mount; |
| 91 | struct nameidata; |
| 92 | struct proc; |
| 93 | struct statvfs; |
| 94 | struct timeval; |
| 95 | struct uio; |
| 96 | struct mbuf; |
| 97 | struct buf; |
| 98 | struct vnode; |
| 99 | |
| 100 | /* ours */ |
| 101 | struct inode; |
| 102 | union lfs_dinode; |
| 103 | struct dlfs; |
| 104 | struct lfs; |
| 105 | struct segment; |
| 106 | struct block_info; |
| 107 | |
| 108 | __BEGIN_DECLS |
| 109 | |
| 110 | #if defined(_KERNEL) |
| 111 | |
| 112 | extern int lfs_allclean_wakeup; |
| 113 | extern struct pool lfs_inode_pool; /* memory pool for inodes */ |
| 114 | extern struct pool lfs_dinode_pool; /* memory pool for dinodes */ |
| 115 | extern struct pool lfs_inoext_pool; /* memory pool for inode extension */ |
| 116 | extern struct pool lfs_lbnentry_pool; /* memory pool for balloc accounting */ |
| 117 | |
| 118 | extern int locked_queue_count; |
| 119 | extern long locked_queue_bytes; |
| 120 | extern int lfs_subsys_pages; |
| 121 | extern int lfs_dirvcount; |
| 122 | extern kmutex_t lfs_lock; |
| 123 | extern int lfs_debug_log_subsys[]; |
| 124 | extern kcondvar_t lfs_writing_cv; |
| 125 | extern kcondvar_t locked_queue_cv; |
| 126 | |
| 127 | /* lfs_alloc.c */ |
| 128 | int lfs_valloc(struct vnode *, int, kauth_cred_t, ino_t *, int *); |
| 129 | int lfs_valloc_fixed(struct lfs *, ino_t, int); |
| 130 | int lfs_vfree(struct vnode *, ino_t, int); |
| 131 | void lfs_order_freelist(struct lfs *); |
| 132 | int lfs_extend_ifile(struct lfs *, kauth_cred_t); |
| 133 | void lfs_orphan(struct lfs *, ino_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 | |
| 153 | /* lfs_debug.c */ |
| 154 | #ifdef DEBUG |
| 155 | int lfs_bwrite_log(struct buf *, const char *, int); |
| 156 | void lfs_dumplog(void); |
| 157 | void lfs_dump_super(struct lfs *); |
| 158 | void lfs_dump_dinode(struct lfs *, union lfs_dinode *); |
| 159 | void lfs_check_bpp(struct lfs *, struct segment *, char *, int); |
| 160 | void lfs_check_segsum(struct lfs *, struct segment *, char *, int); |
| 161 | void lfs_debug_log(int, const char *, ...); |
| 162 | #endif /* DEBUG */ |
| 163 | |
| 164 | /* lfs_inode.c */ |
| 165 | int lfs_update(struct vnode *, const struct timespec *, const struct timespec *, |
| 166 | int); |
| 167 | int lfs_truncate(struct vnode *, off_t, int, kauth_cred_t); |
| 168 | union lfs_dinode *lfs_ifind(struct lfs *, ino_t, struct buf *); |
| 169 | void lfs_finalize_ino_seguse(struct lfs *, struct inode *); |
| 170 | void lfs_finalize_fs_seguse(struct lfs *); |
| 171 | |
| 172 | /* lfs_rename.c */ |
| 173 | int lfs_rename(void *); |
| 174 | |
| 175 | /* lfs_rfw.c */ |
| 176 | int lfs_rf_valloc(struct lfs *, ino_t, int, struct lwp *, struct vnode **); |
| 177 | void lfs_roll_forward(struct lfs *, struct mount *, struct lwp *); |
| 178 | |
| 179 | /* lfs_segment.c */ |
| 180 | void lfs_imtime(struct lfs *); |
| 181 | int lfs_vflush(struct vnode *); |
| 182 | int lfs_segwrite(struct mount *, int); |
| 183 | int lfs_writefile(struct lfs *, struct segment *, struct vnode *); |
| 184 | int lfs_writeinode(struct lfs *, struct segment *, struct inode *); |
| 185 | int lfs_gatherblock(struct segment *, struct buf *, kmutex_t *); |
| 186 | int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *)); |
| 187 | void lfs_update_single(struct lfs *, struct segment *, struct vnode *, |
| 188 | daddr_t, daddr_t, int); |
| 189 | void lfs_updatemeta(struct segment *); |
| 190 | int lfs_rewind(struct lfs *, int); |
| 191 | void lfs_unset_inval_all(struct lfs *); |
| 192 | int lfs_initseg(struct lfs *); |
| 193 | int lfs_writeseg(struct lfs *, struct segment *); |
| 194 | void lfs_writesuper(struct lfs *, daddr_t); |
| 195 | int lfs_match_data(struct lfs *, struct buf *); |
| 196 | int lfs_match_indir(struct lfs *, struct buf *); |
| 197 | int lfs_match_dindir(struct lfs *, struct buf *); |
| 198 | int lfs_match_tindir(struct lfs *, struct buf *); |
| 199 | void lfs_callback(struct buf *); |
| 200 | void lfs_acquire_finfo(struct lfs *fs, ino_t, int); |
| 201 | void lfs_release_finfo(struct lfs *fs); |
| 202 | |
| 203 | /* lfs_subr.c */ |
| 204 | void lfs_setup_resblks(struct lfs *); |
| 205 | void lfs_pad_check(unsigned char *, int, char *, int); |
| 206 | void lfs_free_resblks(struct lfs *); |
| 207 | void *lfs_malloc(struct lfs *, size_t, int); |
| 208 | void lfs_free(struct lfs *, void *, int); |
| 209 | int lfs_seglock(struct lfs *, unsigned long); |
| 210 | void lfs_segunlock(struct lfs *); |
| 211 | void lfs_segunlock_relock(struct lfs *); |
| 212 | int lfs_writer_enter(struct lfs *, const char *); |
| 213 | void lfs_writer_leave(struct lfs *); |
| 214 | void lfs_wakeup_cleaner(struct lfs *); |
| 215 | |
| 216 | /* lfs_syscalls.c */ |
| 217 | int lfs_do_segclean(struct lfs *, unsigned long); |
| 218 | int lfs_segwait(fsid_t *, struct timeval *); |
| 219 | int lfs_bmapv(struct lwp *, fsid_t *, struct block_info *, int); |
| 220 | int lfs_markv(struct lwp *, fsid_t *, struct block_info *, int); |
| 221 | |
| 222 | /* lfs_vfsops.c */ |
| 223 | VFS_PROTOS(lfs); |
| 224 | void lfs_vinit(struct mount *, struct vnode **); |
| 225 | int lfs_resize_fs(struct lfs *, int); |
| 226 | |
| 227 | /* lfs_vnops.c */ |
| 228 | void lfs_mark_vnode(struct vnode *); |
| 229 | void lfs_unmark_vnode(struct vnode *); |
| 230 | int lfs_gop_alloc(struct vnode *, off_t, off_t, int, kauth_cred_t); |
| 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 | int lfs_flush_dirops(struct lfs *); |
| 235 | int lfs_flush_pchain(struct lfs *); |
| 236 | |
| 237 | int lfs_bwrite (void *); |
| 238 | int lfs_fsync (void *); |
| 239 | int lfs_symlink (void *); |
| 240 | int lfs_mknod (void *); |
| 241 | int lfs_create (void *); |
| 242 | int lfs_mkdir (void *); |
| 243 | int lfs_read (void *); |
| 244 | int lfs_remove (void *); |
| 245 | int lfs_rmdir (void *); |
| 246 | int lfs_link (void *); |
| 247 | int lfs_mmap (void *); |
| 248 | int lfs_rename (void *); |
| 249 | int lfs_getattr (void *); |
| 250 | int lfs_setattr (void *); |
| 251 | int lfs_close (void *); |
| 252 | int lfsspec_close(void *); |
| 253 | int lfsfifo_close(void *); |
| 254 | int lfs_fcntl (void *); |
| 255 | int lfs_inactive (void *); |
| 256 | int lfs_reclaim (void *); |
| 257 | int lfs_strategy (void *); |
| 258 | int lfs_write (void *); |
| 259 | int lfs_getpages (void *); |
| 260 | int lfs_putpages (void *); |
| 261 | |
| 262 | int lfs_bufrd(struct vnode *, struct uio *, int, kauth_cred_t); |
| 263 | int lfs_bufwr(struct vnode *, struct uio *, int, kauth_cred_t); |
| 264 | |
| 265 | extern int lfs_mount_type; |
| 266 | extern int (**lfs_vnodeop_p)(void *); |
| 267 | extern int (**lfs_specop_p)(void *); |
| 268 | extern int (**lfs_fifoop_p)(void *); |
| 269 | extern const struct genfs_ops lfs_genfsops; |
| 270 | |
| 271 | #endif /* defined(_KERNEL) */ |
| 272 | |
| 273 | /* lfs_cksum.c */ |
| 274 | uint32_t cksum(void *, size_t); |
| 275 | uint32_t lfs_cksum_part(void *, size_t, uint32_t); |
| 276 | #define lfs_cksum_fold(sum) (sum) |
| 277 | uint32_t lfs_sb_cksum(struct lfs *); |
| 278 | |
| 279 | __END_DECLS |
| 280 | |
| 281 | #endif /* !_UFS_LFS_LFS_EXTERN_H_ */ |
| 282 | |