sys/vfs/ufs/ffs_extern.h

   1 /*-
   2  * Copyright (c) 1991, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)ffs_extern.h        8.6 (Berkeley) 3/30/95
  34  * $FreeBSD: src/sys/ufs/ffs/ffs_extern.h,v 1.30 2000/01/09 22:40:02 mckusick Exp $
  35  * $DragonFly: src/sys/vfs/ufs/ffs_extern.h,v 1.14.10.1 2008/09/25 02:20:57 dillon Exp $
  36  */
  37
  38 #ifndef _VFS_UFS_EXTERN_H
  39 #define _VFS_UFS_EXTERN_H
  40
  41 /*
  42  * Sysctl values for the fast filesystem.
  43  */
  44 #define FFS_REALLOCBLKS         3       /* block reallocation enabled */
  45 #define FFS_ASYNCFREE           4       /* asynchronous block freeing enabled */
  46 #define FFS_MAXID               5       /* number of valid ffs ids */
  47
  48 #define FFS_NAMES { \
  49         { 0, 0 }, \
  50         { 0, 0 }, \
  51         { 0, 0 }, \
  52         { "doreallocblks", CTLTYPE_INT }, \
  53         { "doasyncfree", CTLTYPE_INT }, \
  54 }
  55
  56 struct buf;
  57 struct fid;
  58 struct fs;
  59 struct inode;
  60 struct malloc_type;
  61 struct mount;
  62 struct proc;
  63 struct thread;
  64 struct sockaddr;
  65 struct statfs;
  66 struct ucred;
  67 struct vnode;
  68 struct vop_balloc_args;
  69 struct vop_bmap_args;
  70 struct vop_fsync_args;
  71 struct vop_reallocblks_args;
  72
  73 int     ffs_alloc(struct inode *,
  74             ufs_daddr_t, ufs_daddr_t, int, struct ucred *, ufs_daddr_t *);
  75 int     ffs_balloc(struct vop_balloc_args *);
  76 int     ffs_blkatoff(struct vnode *, off_t, char **, struct buf **);
  77 int     ffs_blkatoff_ra(struct vnode *, off_t, char **, struct buf **, int);
  78 void    ffs_blkfree(struct inode *, ufs_daddr_t, long);
  79 ufs_daddr_t ffs_blkpref(struct inode *, ufs_daddr_t, int, ufs_daddr_t *);
  80 int     ffs_bmap(struct vop_bmap_args *);
  81 void    ffs_clrblock(struct fs *, u_char *, ufs_daddr_t);
  82 int     ffs_fhtovp(struct mount *, struct vnode *,
  83                    struct fid *, struct vnode **);
  84 int     ffs_flushfiles(struct mount *, int);
  85 void    ffs_fragacct(struct fs *, int, int32_t [], int);
  86 int     ffs_freefile( struct vnode *, ino_t, int );
  87 int     ffs_isblock(struct fs *, u_char *, ufs_daddr_t);
  88 int     ffs_isfreeblock(struct fs *, unsigned char *, ufs_daddr_t);
  89 int     ffs_mountfs(struct vnode *, struct mount *, struct malloc_type *);
  90 int     ffs_mountroot(void);
  91 int     ffs_reallocblks(struct vop_reallocblks_args *);
  92 int     ffs_realloccg(struct inode *,
  93             ufs_daddr_t, ufs_daddr_t, int, int, struct ucred *, struct buf **);
  94 void    ffs_setblock(struct fs *, u_char *, ufs_daddr_t);
  95 int     ffs_statfs(struct mount *, struct statfs *, struct ucred *);
  96 int     ffs_sync(struct mount *, int);
  97 int     ffs_truncate(struct vnode *, off_t, int, struct ucred *);
  98 int     ffs_unmount(struct mount *, int);
  99 int     ffs_update(struct vnode *, int);
 100 int     ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);
 101
 102 int     ffs_vfree(struct vnode *, ino_t, int);
 103 int     ffs_vget(struct mount *, ino_t, struct vnode **);
 104 int     ffs_vptofh(struct vnode *, struct fid *);
 105
 106 /*
 107  * Soft update function prototypes.
 108  */
 109 void    softdep_initialize(void);
 110 int     softdep_mount(struct vnode *, struct mount *, struct fs *);
 111 int     softdep_flushfiles(struct mount *, int);
 112 void    softdep_update_inodeblock(struct inode *, struct buf *, int);
 113 void    softdep_load_inodeblock(struct inode *);
 114 void    softdep_freefile(struct vnode *, ino_t, int);
 115 void    softdep_setup_freeblocks(struct inode *, off_t);
 116 void    softdep_setup_inomapdep(struct buf *, struct inode *, ino_t);
 117 void    softdep_setup_blkmapdep(struct buf *, struct fs *, ufs_daddr_t);
 118 void    softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs_daddr_t,
 119             ufs_daddr_t, long, long, struct buf *);
 120 void    softdep_setup_allocindir_meta(struct buf *, struct inode *,
 121             struct buf *, int, ufs_daddr_t);
 122 void    softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
 123             struct buf *, int, ufs_daddr_t, ufs_daddr_t, struct buf *);
 124 void    softdep_fsync_mountdev(struct vnode *);
 125 int     softdep_sync_metadata(struct vnode *, struct thread *);
 126
 127 #endif /* !_VFS_UFS_EXTERN_H */