Home | History | Annotate | Line # | Download | only in ffs
ffs_extern.h revision 1.12
      1 /*	$NetBSD: ffs_extern.h,v 1.12 1999/02/26 23:44:49 wrstuden 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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)ffs_extern.h	8.6 (Berkeley) 3/30/95
     36  */
     37 
     38 /*
     39  * Sysctl values for the fast filesystem.
     40  */
     41 #define FFS_CLUSTERREAD		1	/* cluster reading enabled */
     42 #define FFS_CLUSTERWRITE	2	/* cluster writing enabled */
     43 #define FFS_REALLOCBLKS		3	/* block reallocation enabled */
     44 #define FFS_ASYNCFREE		4	/* asynchronous block freeing enabled */
     45 #define FFS_MAXID		5	/* number of valid ffs ids */
     46 
     47 #define FFS_NAMES { \
     48 	{ 0, 0 }, \
     49 	{ "doclusterread", CTLTYPE_INT }, \
     50 	{ "doclusterwrite", CTLTYPE_INT }, \
     51 	{ "doreallocblks", CTLTYPE_INT }, \
     52 	{ "doasyncfree", CTLTYPE_INT }, \
     53 }
     54 
     55 struct buf;
     56 struct fid;
     57 struct fs;
     58 struct inode;
     59 struct dinode;
     60 struct mount;
     61 struct nameidata;
     62 struct proc;
     63 struct statfs;
     64 struct timeval;
     65 struct ucred;
     66 struct ufsmount;
     67 struct uio;
     68 struct vnode;
     69 struct mbuf;
     70 struct cg;
     71 
     72 extern struct pool ffs_inode_pool;		/* memory pool for inodes */
     73 
     74 __BEGIN_DECLS
     75 
     76 /* ffs_alloc.c */
     77 int ffs_alloc __P((struct inode *, ufs_daddr_t, ufs_daddr_t , int, struct ucred *,
     78 		   ufs_daddr_t *));
     79 int ffs_realloccg __P((struct inode *, ufs_daddr_t, ufs_daddr_t, int, int ,
     80 		       struct ucred *, struct buf **));
     81 int ffs_reallocblks __P((void *));
     82 int ffs_valloc __P((void *));
     83 ufs_daddr_t ffs_blkpref __P((struct inode *, ufs_daddr_t, int, ufs_daddr_t *));
     84 void ffs_blkfree __P((struct inode *, ufs_daddr_t, long));
     85 int ffs_vfree __P((void *));
     86 void ffs_clusteracct __P((int, struct fs *, struct cg *, ufs_daddr_t, int));
     87 
     88 /* ffs_balloc.c */
     89 int ffs_balloc __P((struct inode *, ufs_daddr_t, int, struct ucred *,
     90 		    struct buf **, int));
     91 
     92 /* ffs_bswap.c */
     93 void ffs_sb_swap __P((struct fs*, struct fs *, int));
     94 void ffs_dinode_swap __P((struct dinode *, struct dinode *));
     95 void ffs_csum_swap __P((struct csum *, struct csum *, int));
     96 
     97 /* ffs_inode.c */
     98 void ffs_init __P((void));
     99 int ffs_update __P((void *));
    100 int ffs_truncate __P((void *));
    101 
    102 /* ffs_subr.c */
    103 int ffs_blkatoff __P((void *));
    104 void ffs_fragacct __P((struct fs *, int, int32_t[], int, int));
    105 #ifdef DIAGNOSTIC
    106 void	ffs_checkoverlap __P((struct buf *, struct inode *));
    107 #endif
    108 int ffs_isblock __P((struct fs *, unsigned char *, ufs_daddr_t));
    109 void ffs_clrblock __P((struct fs *, u_char *, ufs_daddr_t));
    110 void ffs_setblock __P((struct fs *, unsigned char *, ufs_daddr_t));
    111 
    112 /* ffs_vfsops.c */
    113 int ffs_mountroot __P((void));
    114 int ffs_mount __P((struct mount *, const char *, void *, struct nameidata *,
    115 		   struct proc *));
    116 int ffs_reload __P((struct mount *, struct ucred *, struct proc *));
    117 int ffs_mountfs __P((struct vnode *, struct mount *, struct proc *));
    118 int ffs_oldfscompat __P((struct fs *));
    119 int ffs_unmount __P((struct mount *, int, struct proc *));
    120 int ffs_flushfiles __P((struct mount *, int, struct proc *));
    121 int ffs_statfs __P((struct mount *, struct statfs *, struct proc *));
    122 int ffs_sync __P((struct mount *, int, struct ucred *, struct proc *));
    123 int ffs_vget __P((struct mount *, ino_t, struct vnode **));
    124 int ffs_fhtovp __P((struct mount *, struct fid *, struct vnode **));
    125 int ffs_vptofh __P((struct vnode *, struct fid *));
    126 int ffs_sysctl __P((int *, u_int, void *, size_t *, void *, size_t,
    127 		    struct proc *));
    128 int ffs_sbupdate __P((struct ufsmount *, int));
    129 int ffs_cgupdate __P((struct ufsmount *, int));
    130 
    131 /* ffs_vnops.c */
    132 int ffs_read __P((void *));
    133 int ffs_write __P((void *));
    134 #define ffs_fsync genfs_fsync
    135 int ffs_reclaim __P((void *));
    136 __END_DECLS
    137 
    138 extern int (**ffs_vnodeop_p) __P((void *));
    139 extern int (**ffs_specop_p) __P((void *));
    140 extern int (**ffs_fifoop_p) __P((void *));
    141 
    142 
    143