59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/* $OpenBSD: uvm_swap.h,v 1.20 2023/10/27 19:18:53 mpi Exp $ */
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/* $NetBSD: uvm_swap.h,v 1.5 2000/01/11 06:57:51 chs Exp $ */
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/*
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* Copyright (c) 1997 Matthew R. Green
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Id: uvm_swap.h,v 1.1.2.6 1997/12/15 05:39:31 mrg Exp
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*/
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#ifndef _UVM_UVM_SWAP_H_
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#define _UVM_UVM_SWAP_H_
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#define SWCLUSTPAGES (MAXBSIZE >> PAGE_SHIFT)
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#define SWSLOT_BAD (-1)
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#ifdef _KERNEL
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int uvm_swap_get(struct vm_page *, int, int);
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int uvm_swap_put(int, struct vm_page **, int, int);
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int uvm_swap_alloc(int *, boolean_t);
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void uvm_swap_free(int, int);
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void uvm_swap_markbad(int, int);
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int uvm_swapisfilled(void);
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int uvm_swapisfull(void);
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void uvm_swap_freepages(struct vm_page **, int);
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#ifdef HIBERNATE
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int uvm_hibswap(dev_t, u_long *, u_long *);
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#endif /* HIBERNATE */
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#ifdef UVM_SWAP_ENCRYPT
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void uvm_swap_initcrypt_all(void);
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void uvm_swap_finicrypt_all(void);
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#endif
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#endif /* _KERNEL */
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#endif /* _UVM_UVM_SWAP_H_ */
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