repair/versions.h

   1 /*
   2  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of version 2 of the GNU General Public License as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it would be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  11  *
  12  * Further, this software is distributed without any warranty that it is
  13  * free of the rightful claim of any third person regarding infringement
  14  * or the like.  Any license provided herein, whether implied or
  15  * otherwise, applies only to this software file.  Patent licenses, if
  16  * any, provided herein do not apply to combinations of this program with
  17  * other software, or any other product whatsoever.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write the Free Software Foundation, Inc., 59
  21  * Temple Place - Suite 330, Boston MA 02111-1307, USA.
  22  *
  23  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
  24  * Mountain View, CA  94043, or:
  25  *
  26  * http://www.sgi.com
  27  *
  28  * For further information regarding this notice, see:
  29  *
  30  * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
  31  */
  32
  33 #ifndef _XR_VERSIONS_H
  34 #define _XR_VERSIONS_H
  35
  36 #ifndef EXTERN
  37 #define EXTERN extern
  38 #endif /* EXTERN */
  39
  40 /*
  41  * possible XFS filesystem features
  42  *
  43  * attributes                                   (6.2)
  44  * inode version 2 (32-bit link counts)         (6.2)
  45  * quotas                                       (6.2+)
  46  * aligned inodes                               (6.2+)
  47  *
  48  * bitmask fields happend after 6.2.
  49  */
  50
  51 /*
  52  * filesystem feature global vars, set to 1 if the feature
  53  * is *allowed*, 0 otherwise.  These can be set via command-line
  54  * options
  55  */
  56
  57 EXTERN int              fs_attributes_allowed;
  58 EXTERN int              fs_inode_nlink_allowed;
  59 EXTERN int              fs_quotas_allowed;
  60 EXTERN int              fs_aligned_inodes_allowed;
  61 EXTERN int              fs_sb_feature_bits_allowed;
  62 EXTERN int              fs_has_extflgbit_allowed;
  63 EXTERN int              fs_shared_allowed;
  64
  65 /*
  66  * filesystem feature global vars, set to 1 if the feature
  67  * is on, 0 otherwise
  68  */
  69
  70 EXTERN int              fs_attributes;
  71 EXTERN int              fs_inode_nlink;
  72 EXTERN int              fs_quotas;
  73 EXTERN int              fs_aligned_inodes;
  74 EXTERN int              fs_sb_feature_bits;
  75 EXTERN int              fs_has_extflgbit;
  76 EXTERN int              fs_shared;
  77
  78 /*
  79  * inode chunk alignment, fsblocks
  80  */
  81
  82 EXTERN xfs_extlen_t     fs_ino_alignment;
  83
  84 /*
  85  * modify superblock to reflect current state of global fs
  86  * feature vars above
  87  */
  88 void                    update_sb_version(xfs_mount_t *mp);
  89
  90 /*
  91  * parse current sb to set above feature vars
  92  */
  93 int                     parse_sb_version(xfs_sb_t *sb);
  94
  95 #endif /* _XR_VERSIONS_H */