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ffs_extern.h revision 1.42.4.1
      1 /*	$NetBSD: ffs_extern.h,v 1.42.4.1 2006/06/21 15:12:31 yamt 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 #define	FFS_ITIMES(ip, acc, mod, cre) \
     48 	while ((ip)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY)) \
     49 		ffs_itimes(ip, acc, mod, cre)
     50 
     51 struct buf;
     52 struct fid;
     53 struct fs;
     54 struct inode;
     55 struct ufs1_dinode;
     56 struct ufs2_dinode;
     57 struct mount;
     58 struct nameidata;
     59 struct lwp;
     60 struct statvfs;
     61 struct timeval;
     62 struct timespec;
     63 struct ufsmount;
     64 struct uio;
     65 struct vnode;
     66 struct mbuf;
     67 struct cg;
     68 
     69 #if defined(_KERNEL)
     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 struct pool ffs_inode_pool;	/* memory pool for inodes */
     76 extern struct pool ffs_dinode1_pool;	/* memory pool for UFS1 dinodes */
     77 extern struct pool ffs_dinode2_pool;	/* memory pool for UFS2 dinodes */
     78 
     79 #endif /* defined(_KERNEL) */
     80 
     81 __BEGIN_DECLS
     82 
     83 #if defined(_KERNEL)
     84 
     85 /* ffs_alloc.c */
     86 int	ffs_alloc(struct inode *, daddr_t, daddr_t , int, kauth_cred_t,
     87 		  daddr_t *);
     88 int	ffs_realloccg(struct inode *, daddr_t, daddr_t, int, int ,
     89 		      kauth_cred_t, struct buf **, daddr_t *);
     90 #if 0
     91 int	ffs_reallocblks(void *);
     92 #endif
     93 int	ffs_valloc(struct vnode *, int, kauth_cred_t, struct vnode **);
     94 daddr_t	ffs_blkpref_ufs1(struct inode *, daddr_t, int, int32_t *);
     95 daddr_t	ffs_blkpref_ufs2(struct inode *, daddr_t, int, int64_t *);
     96 void	ffs_blkfree(struct fs *, struct vnode *, daddr_t, long, ino_t);
     97 int	ffs_vfree(struct vnode *, ino_t, int);
     98 void	ffs_clusteracct(struct fs *, struct cg *, int32_t, int);
     99 int	ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
    100 
    101 /* ffs_balloc.c */
    102 int	ffs_balloc(struct vnode *, off_t, int, kauth_cred_t, int,
    103     struct buf **);
    104 
    105 /* ffs_inode.c */
    106 int	ffs_update(struct vnode *, const struct timespec *,
    107     const struct timespec *, int);
    108 int	ffs_truncate(struct vnode *, off_t, int, kauth_cred_t, struct lwp *);
    109 
    110 /* ffs_vfsops.c */
    111 void	ffs_init(void);
    112 void	ffs_reinit(void);
    113 void	ffs_done(void);
    114 int	ffs_mountroot(void);
    115 int	ffs_mount(struct mount *, const char *, void *, struct nameidata *,
    116 		  struct lwp *);
    117 int	ffs_reload(struct mount *, kauth_cred_t, struct lwp *);
    118 int	ffs_mountfs(struct vnode *, struct mount *, struct lwp *);
    119 int	ffs_unmount(struct mount *, int, struct lwp *);
    120 int	ffs_flushfiles(struct mount *, int, struct lwp *);
    121 int	ffs_statvfs(struct mount *, struct statvfs *, struct lwp *);
    122 int	ffs_sync(struct mount *, int, kauth_cred_t, struct lwp *);
    123 int	ffs_vget(struct mount *, ino_t, struct vnode **);
    124 int	ffs_fhtovp(struct mount *, struct fid *, struct vnode **);
    125 int	ffs_vptofh(struct vnode *, struct fid *);
    126 int	ffs_extattrctl(struct mount *, int, struct vnode *, int,
    127 		       const char *, struct lwp *);
    128 int	ffs_sbupdate(struct ufsmount *, int);
    129 int	ffs_cgupdate(struct ufsmount *, int);
    130 
    131 /* ffs_vnops.c */
    132 int	ffs_read(void *);
    133 int	ffs_write(void *);
    134 int	ffs_fsync(void *);
    135 int	ffs_reclaim(void *);
    136 int	ffs_getpages(void *);
    137 void	ffs_gop_size(struct vnode *, off_t, off_t *, int);
    138 int	ffs_openextattr(void *);
    139 int	ffs_closeextattr(void *);
    140 int	ffs_getextattr(void *);
    141 int	ffs_setextattr(void *);
    142 int	ffs_listextattr(void *);
    143 int	ffs_deleteextattr(void *);
    144 
    145 #ifdef SYSCTL_SETUP_PROTO
    146 SYSCTL_SETUP_PROTO(sysctl_vfs_ffs_setup);
    147 #endif /* SYSCTL_SETUP_PROTO */
    148 
    149 /*
    150  * Snapshot function prototypes.
    151  */
    152 int	ffs_snapblkfree(struct fs *, struct vnode *, daddr_t, long, ino_t);
    153 void	ffs_snapremove(struct vnode *);
    154 int	ffs_snapshot(struct mount *, struct vnode *, struct timespec *);
    155 void	ffs_snapshot_mount(struct mount *);
    156 void	ffs_snapshot_unmount(struct mount *);
    157 void	ffs_snapgone(struct inode *);
    158 
    159 /*
    160  * Soft dependency function prototypes.
    161  */
    162 void	softdep_initialize(void);
    163 void	softdep_reinitialize(void);
    164 int	softdep_mount(struct vnode *, struct mount *, struct fs *,
    165 		      kauth_cred_t);
    166 int	softdep_flushworklist(struct mount *, int *, struct lwp *);
    167 int	softdep_flushfiles(struct mount *, int, struct lwp *);
    168 void	softdep_update_inodeblock(struct inode *, struct buf *, int);
    169 void	softdep_load_inodeblock(struct inode *);
    170 void	softdep_freefile(struct vnode *, ino_t, int);
    171 void	softdep_setup_freeblocks(struct inode *, off_t, int);
    172 void	softdep_setup_inomapdep(struct buf *, struct inode *, ino_t);
    173 void	softdep_setup_blkmapdep(struct buf *, struct fs *, daddr_t);
    174 void	softdep_setup_allocdirect(struct inode *, daddr_t, daddr_t,
    175 				  daddr_t, long, long, struct buf *);
    176 void	softdep_setup_allocindir_meta(struct buf *, struct inode *,
    177 				      struct buf *, int, daddr_t);
    178 void	softdep_setup_allocindir_page(struct inode *, daddr_t,
    179 				      struct buf *, int, daddr_t, daddr_t,
    180 				      struct buf *);
    181 void	softdep_fsync_mountdev(struct vnode *);
    182 int	softdep_sync_metadata(void *);
    183 
    184 extern int (**ffs_vnodeop_p)(void *);
    185 extern int (**ffs_specop_p)(void *);
    186 extern int (**ffs_fifoop_p)(void *);
    187 
    188 #endif /* defined(_KERNEL) */
    189 
    190 /* ffs_appleufs.c */
    191 struct appleufslabel;
    192 u_int16_t ffs_appleufs_cksum(const struct appleufslabel *);
    193 int	ffs_appleufs_validate(const char*, const struct appleufslabel *,
    194 			      struct appleufslabel *);
    195 void	ffs_appleufs_set(struct appleufslabel *, const char *, time_t,
    196 			 uint64_t);
    197 
    198 /* ffs_bswap.c */
    199 void	ffs_sb_swap(struct fs*, struct fs *);
    200 void	ffs_dinode1_swap(struct ufs1_dinode *, struct ufs1_dinode *);
    201 void	ffs_dinode2_swap(struct ufs2_dinode *, struct ufs2_dinode *);
    202 struct csum;
    203 void	ffs_csum_swap(struct csum *, struct csum *, int);
    204 struct csum_total;
    205 void	ffs_csumtotal_swap(struct csum_total *, struct csum_total *);
    206 void	ffs_cg_swap(struct cg *, struct cg *, struct fs *);
    207 
    208 /* ffs_subr.c */
    209 void	ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
    210 int	ffs_freefile(struct fs *, struct vnode *, ino_t, int);
    211 void	ffs_fragacct(struct fs *, int, int32_t[], int, int);
    212 int	ffs_isblock(struct fs *, u_char *, int32_t);
    213 int	ffs_isfreeblock(struct fs *, u_char *, int32_t);
    214 void	ffs_clrblock(struct fs *, u_char *, int32_t);
    215 void	ffs_setblock(struct fs *, u_char *, int32_t);
    216 void	ffs_itimes(struct inode *, const struct timespec *,
    217     const struct timespec *, const struct timespec *);
    218 
    219 __END_DECLS
    220 
    221 #endif /* !_UFS_FFS_FFS_EXTERN_H_ */
    222