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/* $OpenBSD: uvm_swap.h,v 1.14 2012/07/11 10:07:40 mlarkin Exp $ */
/* $NetBSD: uvm_swap.h,v 1.5 2000/01/11 06:57:51 chs Exp $ */
/*
* Copyright (c) 1997 Matthew R. Green
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Id: uvm_swap.h,v 1.1.2.6 1997/12/15 05:39:31 mrg Exp
*/
#ifndef _UVM_UVM_SWAP_H_
#define _UVM_UVM_SWAP_H_
#define SWSLOT_BAD (-1)
#ifdef _KERNEL
int uvm_swap_get(struct vm_page *, int, int);
int uvm_swap_put(int, struct vm_page **, int, int);
int uvm_swap_alloc(int *, boolean_t);
void uvm_swap_free(int, int);
void uvm_swap_markbad(int, int);
void uvm_swap_freepages(struct vm_page **, int);
int uvm_swap_check_range(dev_t, size_t);
#ifdef UVM_SWAP_ENCRYPT
void uvm_swap_initcrypt_all(void);
void uvm_swap_finicrypt_all(void);
#endif
#endif /* _KERNEL */
#endif /* _UVM_UVM_SWAP_H_ */
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