sys/ufs/lfs/lfs_extern.h

   1 /*      $NetBSD: lfs_extern.h,v 1.110 2015/08/12 18:28:01 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 u_int32_t cksum(void *, size_t);
 275 u_int32_t lfs_cksum_part(void *, size_t, u_int32_t);
 276 #define lfs_cksum_fold(sum)     (sum)
 277 u_int32_t lfs_sb_cksum(struct lfs *);
 278
 279 __END_DECLS
 280
 281 #endif /* !_UFS_LFS_LFS_EXTERN_H_ */