sys/ufs/ffs/ffs_extern.h

   1 /*      $NetBSD: ffs_extern.h,v 1.74 2008/12/06 20:05:55 joerg Exp $    */
   2
   3 /*-
   4  * Copyright (c) 1991, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      @(#)ffs_extern.h        8.6 (Berkeley) 3/30/95
  32  */
  33
  34 #ifndef _UFS_FFS_FFS_EXTERN_H_
  35 #define _UFS_FFS_FFS_EXTERN_H_
  36
  37 /*
  38  * Sysctl values for the fast filesystem.
  39  */
  40 #define FFS_CLUSTERREAD         1       /* cluster reading enabled */
  41 #define FFS_CLUSTERWRITE        2       /* cluster writing enabled */
  42 #define FFS_REALLOCBLKS         3       /* block reallocation enabled */
  43 #define FFS_ASYNCFREE           4       /* asynchronous block freeing enabled */
  44 #define FFS_LOG_CHANGEOPT       5       /* log optimalization strategy change */
  45 #define FFS_MAXID               6       /* number of valid ffs ids */
  46
  47 struct buf;
  48 struct fid;
  49 struct fs;
  50 struct inode;
  51 struct ufs1_dinode;
  52 struct ufs2_dinode;
  53 struct mount;
  54 struct nameidata;
  55 struct lwp;
  56 struct statvfs;
  57 struct timeval;
  58 struct timespec;
  59 struct ufsmount;
  60 struct uio;
  61 struct vnode;
  62 struct mbuf;
  63 struct cg;
  64
  65 #if defined(_KERNEL)
  66
  67 #include <sys/pool.h>
  68
  69 #define FFS_NOBLK               ((daddr_t)-1)
  70
  71 #define FFS_ITIMES(ip, acc, mod, cre) \
  72         while ((ip)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY)) \
  73                 ffs_itimes(ip, acc, mod, cre)
  74
  75 extern pool_cache_t ffs_inode_cache;    /* memory pool for inodes */
  76 extern pool_cache_t ffs_dinode1_cache;  /* memory pool for UFS1 dinodes */
  77 extern pool_cache_t ffs_dinode2_cache;  /* memory pool for UFS2 dinodes */
  78
  79 #endif /* defined(_KERNEL) */
  80
  81 __BEGIN_DECLS
  82
  83 #if defined(_KERNEL)
  84
  85 #include <sys/param.h>
  86 #include <sys/mount.h>
  87 #include <sys/wapbl.h>
  88
  89 /* ffs_alloc.c */
  90 int     ffs_alloc(struct inode *, daddr_t, daddr_t , int, int, kauth_cred_t,
  91                   daddr_t *);
  92 int     ffs_realloccg(struct inode *, daddr_t, daddr_t, int, int ,
  93                       kauth_cred_t, struct buf **, daddr_t *);
  94 int     ffs_valloc(struct vnode *, int, kauth_cred_t, struct vnode **);
  95 daddr_t ffs_blkpref_ufs1(struct inode *, daddr_t, int, int, int32_t *);
  96 daddr_t ffs_blkpref_ufs2(struct inode *, daddr_t, int, int, int64_t *);
  97 int     ffs_blkalloc(struct inode *, daddr_t, long);
  98 int     ffs_blkalloc_ump(struct ufsmount *, daddr_t, long);
  99 void    ffs_blkfree(struct fs *, struct vnode *, daddr_t, long, ino_t);
 100 void    ffs_blkfree_snap(struct fs *, struct vnode *, daddr_t, long, ino_t);
 101 int     ffs_vfree(struct vnode *, ino_t, int);
 102 void    ffs_clusteracct(struct fs *, struct cg *, int32_t, int);
 103 int     ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
 104 int     ffs_freefile(struct mount *, ino_t, int);
 105 int     ffs_freefile_snap(struct fs *, struct vnode *, ino_t, int);
 106
 107 /* ffs_balloc.c */
 108 int     ffs_balloc(struct vnode *, off_t, int, kauth_cred_t, int,
 109     struct buf **);
 110
 111 /* ffs_inode.c */
 112 int     ffs_update(struct vnode *, const struct timespec *,
 113     const struct timespec *, int);
 114 int     ffs_truncate(struct vnode *, off_t, int, kauth_cred_t);
 115
 116 /* ffs_vfsops.c */
 117 VFS_PROTOS(ffs);
 118
 119 int     ffs_reload(struct mount *, kauth_cred_t, struct lwp *);
 120 int     ffs_mountfs(struct vnode *, struct mount *, struct lwp *);
 121 int     ffs_flushfiles(struct mount *, int, struct lwp *);
 122 int     ffs_sbupdate(struct ufsmount *, int);
 123 int     ffs_cgupdate(struct ufsmount *, int);
 124
 125 /* ffs_vnops.c */
 126 int     ffs_read(void *);
 127 int     ffs_write(void *);
 128 int     ffs_fsync(void *);
 129 int     ffs_reclaim(void *);
 130 int     ffs_getpages(void *);
 131 void    ffs_gop_size(struct vnode *, off_t, off_t *, int);
 132 int     ffs_openextattr(void *);
 133 int     ffs_closeextattr(void *);
 134 int     ffs_getextattr(void *);
 135 int     ffs_setextattr(void *);
 136 int     ffs_listextattr(void *);
 137 int     ffs_deleteextattr(void *);
 138 int     ffs_lock(void *);
 139 int     ffs_unlock(void *);
 140 int     ffs_islocked(void *);
 141 int     ffs_full_fsync(struct vnode *, int);
 142
 143 /*
 144  * Snapshot function prototypes.
 145  */
 146 int     ffs_snapshot_init(struct ufsmount *);
 147 void    ffs_snapshot_fini(struct ufsmount *);
 148 int     ffs_snapblkfree(struct fs *, struct vnode *, daddr_t, long, ino_t);
 149 void    ffs_snapremove(struct vnode *);
 150 int     ffs_snapshot(struct mount *, struct vnode *, struct timespec *);
 151 void    ffs_snapshot_mount(struct mount *);
 152 void    ffs_snapshot_unmount(struct mount *);
 153 void    ffs_snapgone(struct inode *);
 154 int     ffs_snapshot_read(struct vnode *, struct uio *, int);
 155
 156 /* Write Ahead Physical Block Logging */
 157 void    ffs_wapbl_verify_inodes(struct mount *, const char *);
 158 void    ffs_wapbl_replay_finish(struct mount *);
 159 int     ffs_wapbl_start(struct mount *);
 160 int     ffs_wapbl_stop(struct mount *, int);
 161 int     ffs_wapbl_replay_start(struct mount *, struct fs *, struct vnode *);
 162 void    ffs_wapbl_blkalloc(struct fs *, struct vnode *, daddr_t, int);
 163
 164 void    ffs_wapbl_sync_metadata(struct mount *, daddr_t *, int *, int);
 165 void    ffs_wapbl_abort_sync_metadata(struct mount *, daddr_t *, int *, int);
 166
 167 extern int (**ffs_vnodeop_p)(void *);
 168 extern int (**ffs_specop_p)(void *);
 169 extern int (**ffs_fifoop_p)(void *);
 170
 171 #endif /* defined(_KERNEL) */
 172
 173 /* ffs_appleufs.c */
 174 struct appleufslabel;
 175 u_int16_t ffs_appleufs_cksum(const struct appleufslabel *);
 176 int     ffs_appleufs_validate(const char*, const struct appleufslabel *,
 177                               struct appleufslabel *);
 178 void    ffs_appleufs_set(struct appleufslabel *, const char *, time_t,
 179                          uint64_t);
 180
 181 /* ffs_bswap.c */
 182 void    ffs_sb_swap(struct fs*, struct fs *);
 183 void    ffs_dinode1_swap(struct ufs1_dinode *, struct ufs1_dinode *);
 184 void    ffs_dinode2_swap(struct ufs2_dinode *, struct ufs2_dinode *);
 185 struct csum;
 186 void    ffs_csum_swap(struct csum *, struct csum *, int);
 187 struct csum_total;
 188 void    ffs_csumtotal_swap(struct csum_total *, struct csum_total *);
 189 void    ffs_cg_swap(struct cg *, struct cg *, struct fs *);
 190
 191 /* ffs_subr.c */
 192 #if defined(_KERNEL)
 193 void    ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
 194 int     ffs_getblk(struct vnode *, daddr_t, daddr_t, int, bool, buf_t **);
 195 #endif /* defined(_KERNEL) */
 196 void    ffs_fragacct(struct fs *, int, int32_t[], int, int);
 197 int     ffs_isblock(struct fs *, u_char *, int32_t);
 198 int     ffs_isfreeblock(struct fs *, u_char *, int32_t);
 199 void    ffs_clrblock(struct fs *, u_char *, int32_t);
 200 void    ffs_setblock(struct fs *, u_char *, int32_t);
 201 void    ffs_itimes(struct inode *, const struct timespec *,
 202     const struct timespec *, const struct timespec *);
 203
 204 __END_DECLS
 205
 206 #endif /* !_UFS_FFS_FFS_EXTERN_H_ */