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ffs_extern.h

/*-
 * Copyright (c) 1991, 1993, 1994
 *    The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *    @(#)ffs_extern.h  8.6 (Berkeley) 3/30/95
 * $FreeBSD: src/sys/ufs/ffs/ffs_extern.h,v 1.74 2007/02/17 08:25:43 mckusick Exp $
 */

#ifndef _UFS_FFS_EXTERN_H
#define     _UFS_FFS_EXTERN_H

struct buf;
struct cg;
struct fid;
struct fs;
struct inode;
struct malloc_type;
struct mount;
struct thread;
struct sockaddr;
struct statfs;
struct ucred;
struct vnode;
struct vop_fsync_args;
struct vop_reallocblks_args;

int   ffs_alloc(struct inode *,
          ufs2_daddr_t, ufs2_daddr_t, int, struct ucred *, ufs2_daddr_t *);
int   ffs_balloc_ufs1(struct vnode *a_vp, off_t a_startoffset, int a_size,
            struct ucred *a_cred, int a_flags, struct buf **a_bpp);
int   ffs_balloc_ufs2(struct vnode *a_vp, off_t a_startoffset, int a_size,
            struct ucred *a_cred, int a_flags, struct buf **a_bpp);
int   ffs_blkatoff(struct vnode *, off_t, char **, struct buf **);
void  ffs_blkfree(struct ufsmount *, struct fs *, struct vnode *,
          ufs2_daddr_t, long, ino_t);
ufs2_daddr_t ffs_blkpref_ufs1(struct inode *, ufs_lbn_t, int, ufs1_daddr_t *);
ufs2_daddr_t ffs_blkpref_ufs2(struct inode *, ufs_lbn_t, int, ufs2_daddr_t *);
int   ffs_checkfreefile(struct fs *, struct vnode *, ino_t);
void  ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t);
void  ffs_bdflush(struct bufobj *, struct buf *);
int   ffs_copyonwrite(struct vnode *, struct buf *);
int   ffs_flushfiles(struct mount *, int, struct thread *);
void  ffs_fragacct(struct fs *, int, int32_t [], int);
int   ffs_freefile(struct ufsmount *, struct fs *, struct vnode *, ino_t,
          int);
int   ffs_isblock(struct fs *, u_char *, ufs1_daddr_t);
void  ffs_load_inode(struct buf *, struct inode *, struct fs *, ino_t);
int   ffs_mountroot(void);
int   ffs_reallocblks(struct vop_reallocblks_args *);
int   ffs_realloccg(struct inode *, ufs2_daddr_t, ufs2_daddr_t,
          ufs2_daddr_t, int, int, struct ucred *, struct buf **);
int   ffs_sbupdate(struct ufsmount *, int, int);
void  ffs_setblock(struct fs *, u_char *, ufs1_daddr_t);
int   ffs_snapblkfree(struct fs *, struct vnode *, ufs2_daddr_t, long, ino_t);
void  ffs_snapremove(struct vnode *vp);
int   ffs_snapshot(struct mount *mp, char *snapfile);
void  ffs_snapshot_mount(struct mount *mp);
void  ffs_snapshot_unmount(struct mount *mp);
int   ffs_syncvnode(struct vnode *vp, int waitfor);
int   ffs_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
int   ffs_update(struct vnode *, int);
int   ffs_valloc(struct vnode *, int, struct ucred *, struct vnode **);

int   ffs_vfree(struct vnode *, ino_t, int);
vfs_vget_t ffs_vget;

extern struct vop_vector ffs_vnodeops1;
extern struct vop_vector ffs_fifoops1;
extern struct vop_vector ffs_vnodeops2;
extern struct vop_vector ffs_fifoops2;

/*
 * Soft update function prototypes.
 */

int   softdep_check_suspend(struct mount *, struct vnode *,
        int, int, int, int);
void  softdep_get_depcounts(struct mount *, int *, int *);
void  softdep_initialize(void);
void  softdep_uninitialize(void);
int   softdep_mount(struct vnode *, struct mount *, struct fs *,
          struct ucred *);
void  softdep_move_dependencies(struct buf *, struct buf *);
int   softdep_flushworklist(struct mount *, int *, struct thread *);
int   softdep_flushfiles(struct mount *, int, struct thread *);
void  softdep_update_inodeblock(struct inode *, struct buf *, int);
void  softdep_load_inodeblock(struct inode *);
void  softdep_freefile(struct vnode *, ino_t, int);
int   softdep_request_cleanup(struct fs *, struct vnode *);
void  softdep_setup_freeblocks(struct inode *, off_t, int);
void  softdep_setup_inomapdep(struct buf *, struct inode *, ino_t);
void  softdep_setup_blkmapdep(struct buf *, struct mount *, ufs2_daddr_t);
void  softdep_setup_allocdirect(struct inode *, ufs_lbn_t, ufs2_daddr_t,
          ufs2_daddr_t, long, long, struct buf *);
void  softdep_setup_allocext(struct inode *, ufs_lbn_t, ufs2_daddr_t,
          ufs2_daddr_t, long, long, struct buf *);
void  softdep_setup_allocindir_meta(struct buf *, struct inode *,
          struct buf *, int, ufs2_daddr_t);
void  softdep_setup_allocindir_page(struct inode *, ufs_lbn_t,
          struct buf *, int, ufs2_daddr_t, ufs2_daddr_t, struct buf *);
void  softdep_fsync_mountdev(struct vnode *);
int   softdep_sync_metadata(struct vnode *);
int     softdep_process_worklist(struct mount *, int);
int     softdep_fsync(struct vnode *);
int   softdep_waitidle(struct mount *);

#endif /* !_UFS_FFS_EXTERN_H */

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