/* $NetBSD: uvm_swap.h,v 1.19 2013/11/23 14:32:13 christos 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. * * 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 #if defined(_KERNEL_OPT) #include "opt_vmswap.h" #endif struct swapent; struct lwp; #if defined(VMSWAP) int uvm_swap_get(struct vm_page *, int, int); int uvm_swap_put(int, struct vm_page **, int, int); int uvm_swap_alloc(int *, bool); void uvm_swap_free(int, int); void uvm_swap_markbad(int, int); bool uvm_swapisfull(void); #else /* defined(VMSWAP) */ #define uvm_swapisfull() true #endif /* defined(VMSWAP) */ void uvm_swap_shutdown(struct lwp *); #endif /* _KERNEL */ #endif /* _UVM_UVM_SWAP_H_ */