sys/fs/efs/efs_subr.h

   1 /*      $NetBSD: efs_subr.h,v 1.1 2007/06/29 23:30:30 rumble Exp $      */
   2
   3 /*
   4  * Copyright (c) 2006 Stephen M. Rumble <rumble@ephemeral.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #ifndef _FS_EFS_EFS_SUBR_H_
  20 #define _FS_EFS_EFS_SUBR_H_
  21
  22 extern struct pool efs_inode_pool;
  23
  24 struct efs_extent_iterator {
  25         struct efs_inode       *exi_eip;
  26         off_t                   exi_next;               /* next logical extent*/
  27         off_t                   exi_dnext;              /* next direct extent */
  28         off_t                   exi_innext;             /* next indirect ext. */
  29 };
  30
  31 int32_t efs_sb_checksum(struct efs_sb *, int);
  32 int     efs_sb_validate(struct efs_sb *, const char **);
  33 void    efs_locate_inode(ino_t, struct efs_sb *, uint32_t *, int *);
  34 int     efs_read_inode(struct efs_mount *, ino_t, struct lwp *,
  35             struct efs_dinode *);
  36 void    efs_dextent_to_extent(struct efs_dextent *, struct efs_extent *);
  37 void    efs_extent_to_dextent(struct efs_extent *, struct efs_dextent *);
  38 int     efs_inode_lookup(struct efs_mount *, struct efs_inode *,
  39             struct componentname *, ino_t *);
  40 int     efs_bread(struct efs_mount *, uint32_t, struct lwp *, struct buf **);
  41 void    efs_sync_inode_to_dinode(struct efs_inode *);
  42 void    efs_sync_dinode_to_inode(struct efs_inode *);
  43 void    efs_extent_iterator_init(struct efs_extent_iterator *,
  44             struct efs_inode *, off_t);
  45 int     efs_extent_iterator_next(struct efs_extent_iterator *,
  46             struct efs_extent *);
  47
  48 #endif /* !_FS_EFS_EFS_SUBR_H_ */