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ffs_extern.h revision 1.1.1.2 
      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  */
     35 
     36 /*
     37  * Sysctl values for the fast filesystem.
     38  */
     39 #define FFS_CLUSTERREAD		1	/* cluster reading enabled */
     40 #define FFS_CLUSTERWRITE	2	/* cluster writing enabled */
     41 #define FFS_REALLOCBLKS		3	/* block reallocation enabled */
     42 #define FFS_ASYNCFREE		4	/* asynchronous block freeing enabled */
     43 #define	FFS_MAXID		5	/* number of valid ffs ids */
     44 
     45 #define FFS_NAMES { \
     46 	{ 0, 0 }, \
     47 	{ "doclusterread", CTLTYPE_INT }, \
     48 	{ "doclusterwrite", CTLTYPE_INT }, \
     49 	{ "doreallocblks", CTLTYPE_INT }, \
     50 	{ "doasyncfree", CTLTYPE_INT }, \
     51 }
     52 
     53 struct buf;
     54 struct fid;
     55 struct fs;
     56 struct inode;
     57 struct mount;
     58 struct nameidata;
     59 struct proc;
     60 struct statfs;
     61 struct timeval;
     62 struct ucred;
     63 struct uio;
     64 struct vnode;
     65 struct mbuf;
     66 struct vfsconf;
     67 
     68 __BEGIN_DECLS
     69 int	ffs_alloc __P((struct inode *,
     70 	    ufs_daddr_t, ufs_daddr_t, int, struct ucred *, ufs_daddr_t *));
     71 int	ffs_balloc __P((struct inode *,
     72 	    ufs_daddr_t, int, struct ucred *, struct buf **, int));
     73 int	ffs_blkatoff __P((struct vop_blkatoff_args *));
     74 int	ffs_blkfree __P((struct inode *, ufs_daddr_t, long));
     75 ufs_daddr_t ffs_blkpref __P((struct inode *, ufs_daddr_t, int, ufs_daddr_t *));
     76 int	ffs_bmap __P((struct vop_bmap_args *));
     77 void	ffs_clrblock __P((struct fs *, u_char *, ufs_daddr_t));
     78 int	ffs_fhtovp __P((struct mount *, struct fid *, struct mbuf *,
     79 	    struct vnode **, int *, struct ucred **));
     80 void	ffs_fragacct __P((struct fs *, int, int32_t [], int));
     81 int	ffs_fsync __P((struct vop_fsync_args *));
     82 int	ffs_init __P((struct vfsconf *));
     83 int	ffs_isblock __P((struct fs *, u_char *, ufs_daddr_t));
     84 int	ffs_mount __P((struct mount *,
     85 	    char *, caddr_t, struct nameidata *, struct proc *));
     86 int	ffs_mountfs __P((struct vnode *, struct mount *, struct proc *));
     87 int	ffs_mountroot __P((void));
     88 int	ffs_read __P((struct vop_read_args *));
     89 int	ffs_reallocblks __P((struct vop_reallocblks_args *));
     90 int	ffs_realloccg __P((struct inode *,
     91 	    ufs_daddr_t, ufs_daddr_t, int, int, struct ucred *, struct buf **));
     92 int	ffs_reclaim __P((struct vop_reclaim_args *));
     93 void	ffs_setblock __P((struct fs *, u_char *, ufs_daddr_t));
     94 int	ffs_statfs __P((struct mount *, struct statfs *, struct proc *));
     95 int	ffs_sync __P((struct mount *, int, struct ucred *, struct proc *));
     96 int	ffs_sysctl __P((int *, u_int, void *, size_t *, void *, size_t,
     97 	    struct proc *));
     98 int	ffs_truncate __P((struct vop_truncate_args *));
     99 int	ffs_unmount __P((struct mount *, int, struct proc *));
    100 int	ffs_update __P((struct vop_update_args *));
    101 int	ffs_valloc __P((struct vop_valloc_args *));
    102 int	ffs_vfree __P((struct vop_vfree_args *));
    103 int	ffs_vget __P((struct mount *, ino_t, struct vnode **));
    104 int	ffs_vptofh __P((struct vnode *, struct fid *));
    105 int	ffs_write __P((struct vop_write_args *));
    106 
    107 int	bwrite();		/* FFS needs a bwrite routine.  XXX */
    108 
    109 #ifdef DIAGNOSTIC
    110 void	ffs_checkoverlap __P((struct buf *, struct inode *));
    111 #endif
    112 __END_DECLS
    113 
    114 extern int (**ffs_vnodeop_p)();
    115 extern int (**ffs_specop_p)();
    116 #ifdef FIFO
    117 extern int (**ffs_fifoop_p)();
    118 #define FFS_FIFOOPS ffs_fifoop_p
    119 #else
    120 #define FFS_FIFOOPS NULL
    121 #endif
    122