fs/jfs/jfs_extent.h

   1 /*
   2  *   Copyright (C) International Business Machines Corp., 2000-2001
   3  *
   4  *   This program is free software;  you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation; either version 2 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  12  *   the GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program;  if not, write to the Free Software
  16  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  17  */
  18 #ifndef _H_JFS_EXTENT
  19 #define _H_JFS_EXTENT
  20
  21 /*  get block allocation allocation hint as location of disk inode */
  22 #define INOHINT(ip)     \
  23         (addressPXD(&(JFS_IP(ip)->ixpxd)) + lengthPXD(&(JFS_IP(ip)->ixpxd)) - 1)
  24
  25 extern int      extAlloc(struct inode *, s64, s64, xad_t *, bool);
  26 extern int      extFill(struct inode *, xad_t *);
  27 extern int      extHint(struct inode *, s64, xad_t *);
  28 extern int      extRealloc(struct inode *, s64, xad_t *, bool);
  29 extern int      extRecord(struct inode *, xad_t *);
  30
  31 #endif  /* _H_JFS_EXTENT */