drivers/char/ftape/zftape/zftape-buffers.h

   1 #ifndef _FTAPE_DYNMEM_H
   2 #define _FTAPE_DYNMEM_H
   3
   4 /*
   5  *      Copyright (C) 1995-1997 Claus-Justus Heine.
   6
   7  This program is free software; you can redistribute it and/or modify
   8  it under the terms of the GNU General Public License as published by
   9  the Free Software Foundation; either version 2, or (at your option)
  10  any later version.
  11
  12  This program is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  GNU General Public License for more details.
  16
  17  You should have received a copy of the GNU General Public License
  18  along with this program; see the file COPYING.  If not, write to
  19  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21  *
  22  * $Source: /homes/cvs/ftape-stacked/ftape/zftape/zftape-buffers.h,v $
  23  * $Revision: 1.2 $
  24  * $Date: 1997/10/05 19:18:59 $
  25  *
  26  *   memory allocation routines.
  27  *
  28  */
  29
  30 /* we do not allocate all of the really large buffer memory before
  31  * someone tries to open the drive. ftape_open() may fail with
  32  * -ENOMEM, but that's better having 200k of vmalloced memory which
  33  * cannot be swapped out.
  34  */
  35
  36 extern void  zft_memory_stats(void);
  37 extern int   zft_vmalloc_once(void *new, size_t size);
  38 extern int   zft_vcalloc_once(void *new, size_t size);
  39 extern int   zft_vmalloc_always(void *new, size_t size);
  40 extern void  zft_vfree(void *old, size_t size);
  41 extern void *zft_kmalloc(size_t size);
  42 extern void  zft_kfree(void *old, size_t size);
  43
  44 /* called by cleanup_module()
  45  */
  46 extern void zft_uninit_mem(void);
  47
  48 #endif
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