FreeBSD/Linux Kernel Cross Reference
sys/fs/ext2fs/ext2_extern.h

     /*-
      *  modified for EXT2FS support in Lites 1.1
      *
      *  Aug 1995, Godmar Back (gback@cs.utah.edu)
      *  University of Utah, Department of Computer Science
      */
     /*-
      * 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        8.3 (Berkeley) 4/16/94
     * $FreeBSD$
     */
    
    #ifndef _FS_EXT2FS_EXT2_EXTERN_H_
    #define _FS_EXT2FS_EXT2_EXTERN_H_
    
    struct ext2fs_dinode;
    struct ext2fs_direct_2;
    struct ext2fs_searchslot;
    struct indir;
    struct inode;
    struct mount;
    struct vfsconf;
    struct vnode;
    
    int     ext2_add_entry(struct vnode *, struct ext2fs_direct_2 *);
    int     ext2_alloc(struct inode *, daddr_t, e4fs_daddr_t, int,
                struct ucred *, e4fs_daddr_t *);
    daddr_t ext2_allocfacl(struct inode *ip);
    int     ext2_balloc(struct inode *,
                e2fs_lbn_t, int, struct ucred *, struct buf **, int);
    int     ext2_blkatoff(struct vnode *, off_t, char **, struct buf **);
    void    ext2_blkfree(struct inode *,  e4fs_daddr_t, long);
    e4fs_daddr_t    ext2_blkpref(struct inode *, e2fs_lbn_t, int, e2fs_daddr_t *,
                e2fs_daddr_t);
    int     ext2_bmap(struct vop_bmap_args *);
    int     ext2_bmaparray(struct vnode *, daddr_t, daddr_t *, int *, int *);
    void    ext2_clusteracct(struct m_ext2fs *, char *, int, daddr_t, int);
    void    ext2_dirbad(struct inode *ip, doff_t offset, char *how);
    void    ext2_fserr(struct m_ext2fs *, uid_t, char *);
    void    ext2_ei2i(struct ext2fs_dinode *, struct inode *);
    int     ext2_getlbns(struct vnode *, daddr_t, struct indir *, int *);
    int     ext2_i2ei(struct inode *, struct ext2fs_dinode *);
    void    ext2_itimes(struct vnode *vp);
    int     ext2_reallocblks(struct vop_reallocblks_args *);
    int     ext2_reclaim(struct vop_reclaim_args *);
    int     ext2_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
    int     ext2_update(struct vnode *, int);
    int     ext2_valloc(struct vnode *, int, struct ucred *, struct vnode **);
    int     ext2_vfree(struct vnode *, ino_t, int);
    int     ext2_vinit(struct mount *, struct vop_vector *, struct vnode **vpp);
    int     ext2_lookup(struct vop_cachedlookup_args *);
    int     ext2_readdir(struct vop_readdir_args *);
    #ifdef EXT2FS_DEBUG
    void    ext2_print_inode(struct inode *);
    #endif
    int     ext2_direnter(struct inode *, 
                    struct vnode *, struct componentname *);
    int     ext2_dirremove(struct vnode *, struct componentname *);
    int     ext2_dirrewrite(struct inode *,
                    struct inode *, struct componentname *);
    int     ext2_dirempty(struct inode *, ino_t, struct ucred *);
    int     ext2_checkpath(struct inode *, struct inode *, struct ucred *);
    int     ext2_cg_has_sb(struct m_ext2fs *fs, int cg);
    int     ext2_inactive(struct vop_inactive_args *);
    int     ext2_htree_add_entry(struct vnode *, struct ext2fs_direct_2 *,
                struct componentname *);
    int     ext2_htree_create_index(struct vnode *, struct componentname *,
                struct ext2fs_direct_2 *);
    int     ext2_htree_has_idx(struct inode *);
    int     ext2_htree_hash(const char *, int, uint32_t *, int, uint32_t *,
                uint32_t *);
    int     ext2_htree_lookup(struct inode *, const char *, int, struct buf **,
                int *, doff_t *, doff_t *, doff_t *, struct ext2fs_searchslot *);
   int     ext2_search_dirblock(struct inode *, void *, int *, const char *, int,
               int *, doff_t *, doff_t *, doff_t *, struct ext2fs_searchslot *);
   int     ext2_gd_csum_verify(struct m_ext2fs *fs, struct cdev *dev);
   void    ext2_gd_csum_set(struct m_ext2fs *fs);
   
   
   /* Flags to low-level allocation routines.
    * The low 16-bits are reserved for IO_ flags from vnode.h.
    */
   #define BA_CLRBUF       0x00010000      /* Clear invalid areas of buffer. */
   #define BA_SEQMASK      0x7F000000      /* Bits holding seq heuristic. */
   #define BA_SEQSHIFT     24
   #define BA_SEQMAX       0x7F
   
   extern struct vop_vector ext2_vnodeops;
   extern struct vop_vector ext2_fifoops;
   
   #endif  /* !_FS_EXT2FS_EXT2_EXTERN_H_ */

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