Home | History | Annotate | Line # | Download | only in uvm
uvm_swap.h revision 1.6 
      1 /*	$NetBSD: uvm_swap.h,v 1.6 2002/03/18 11:43:01 manu Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Matthew R. Green
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  *
     30  * from: Id: uvm_swap.h,v 1.1.2.6 1997/12/15 05:39:31 mrg Exp
     31  */
     32 
     33 #ifndef _UVM_UVM_SWAP_H_
     34 #define _UVM_UVM_SWAP_H_
     35 
     36 #define	SWSLOT_BAD	(-1)
     37 
     38 #ifdef _KERNEL
     39 
     40 struct swapent;
     41 
     42 int			uvm_swap_get __P((struct vm_page *, int, int));
     43 int			uvm_swap_put __P((int, struct vm_page **, int, int));
     44 int			uvm_swap_alloc __P((int *, boolean_t));
     45 void			uvm_swap_free __P((int, int));
     46 void			uvm_swap_markbad __P((int, int));
     47 void			uvm_swap_stats __P((int, struct swapent *,
     48 			    int, register_t *));
     49 
     50 #endif /* _KERNEL */
     51 
     52 #endif /* _UVM_UVM_SWAP_H_ */
     53