FreeBSD/Linux Kernel Cross Reference
sys/ufs/ufs/ufs_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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 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.
     *
     *      @(#)ufs_extern.h        8.10 (Berkeley) 5/14/95
     * $FreeBSD: releng/5.2/sys/ufs/ufs/ufs_extern.h 105422 2002-10-18 22:52:41Z dillon $
     */
    
    #ifndef _UFS_UFS_EXTERN_H_
    #define _UFS_UFS_EXTERN_H_
    
    struct componentname;
    struct direct;
    struct indir;
    struct inode;
    struct mount;
    struct netcred;
    struct thread;
    struct sockaddr;
    struct ucred;
    struct ufid;
    struct vfsconf;
    struct vnode;
    struct vop_bmap_args;
    struct vop_cachedlookup_args;
    struct vop_generic_args;
    struct vop_inactive_args;
    struct vop_reclaim_args;
    
    int     ufs_vnoperate(struct vop_generic_args *);
    int     ufs_vnoperatefifo(struct vop_generic_args *);
    int     ufs_vnoperatespec(struct vop_generic_args *);
    
    int      ufs_bmap(struct vop_bmap_args *);
    int      ufs_bmaparray(struct vnode *, ufs2_daddr_t, ufs2_daddr_t *,
                struct buf *, int *, int *);
    int      ufs_fhtovp(struct mount *, struct ufid *, struct vnode **);
    int      ufs_checkpath(struct inode *, struct inode *, struct ucred *);
    void     ufs_dirbad(struct inode *, doff_t, char *);
    int      ufs_dirbadentry(struct vnode *, struct direct *, int);
    int      ufs_dirempty(struct inode *, ino_t, struct ucred *);
    int      ufs_extread(struct vop_read_args *);
    int      ufs_extwrite(struct vop_write_args *);
    void     ufs_makedirentry(struct inode *, struct componentname *,
                struct direct *);
    int      ufs_direnter(struct vnode *, struct vnode *, struct direct *,
                struct componentname *, struct buf *);
    int      ufs_dirremove(struct vnode *, struct inode *, int, int);
    int      ufs_dirrewrite(struct inode *, struct inode *, ino_t, int, int);
    int      ufs_getlbns(struct vnode *, ufs2_daddr_t, struct indir *, int *);
    int      ufs_ihashget(dev_t, ino_t, int, struct vnode **);
    void     ufs_ihashinit(void);
    int      ufs_ihashins(struct inode *, int, struct vnode **);
    struct vnode *
             ufs_ihashlookup(dev_t, ino_t);
    void     ufs_ihashrem(struct inode *);
    void     ufs_ihashuninit(void);
    int      ufs_inactive(struct vop_inactive_args *);
    int      ufs_init(struct vfsconf *);
    void     ufs_itimes(struct vnode *vp);
    int      ufs_lookup(struct vop_cachedlookup_args *);
    int      ufs_readdir(struct vop_readdir_args *);
    int      ufs_reclaim(struct vop_reclaim_args *);
    void     ffs_snapgone(struct inode *);
    vfs_root_t ufs_root;
    vfs_start_t ufs_start;
    int      ufs_uninit(struct vfsconf *);
    int      ufs_vinit(struct mount *, vop_t **, vop_t **, struct vnode **);
    
    /*
     * Soft update function prototypes.
    */
   int     softdep_setup_directory_add(struct buf *, struct inode *, off_t,
               ino_t, struct buf *, int);
   void    softdep_change_directoryentry_offset(struct inode *, caddr_t,
               caddr_t, caddr_t, int);
   void    softdep_setup_remove(struct buf *,struct inode *, struct inode *, int);
   void    softdep_setup_directory_change(struct buf *, struct inode *,
               struct inode *, ino_t, int);
   void    softdep_change_linkcnt(struct inode *);
   void    softdep_releasefile(struct inode *);
   int     softdep_slowdown(struct vnode *);
   
   /*
    * Flags to low-level allocation routines.  The low 16-bits are reserved
    * for IO_ flags from vnode.h.
    *
    * Note: The general vfs code typically limits the sequential heuristic
    * count to 127.  See sequential_heuristic() in kern/vfs_vnops.c
    */
   #define BA_CLRBUF       0x00010000      /* Clear invalid areas of buffer. */
   #define BA_METAONLY     0x00020000      /* Return indirect block buffer. */
   #define BA_SEQMASK      0x7F000000      /* Bits holding seq heuristic. */
   #define BA_SEQSHIFT     24
   #define BA_SEQMAX       0x7F
   
   #endif /* !_UFS_UFS_EXTERN_H_ */

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