/* $NetBSD: uvm_loan.h,v 1.17 2011/02/02 15:13:34 chuck Exp $ */ /* * Copyright (c) 1997 Charles D. Cranor and Washington University. * 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_loan.h,v 1.1.4.1 1997/12/08 16:07:14 chuck Exp */ #ifndef _UVM_UVM_LOAN_H_ #define _UVM_UVM_LOAN_H_ #ifdef _KERNEL /* * flags for uvm_loan() */ #define UVM_LOAN_TOANON 0x1 /* loan to anon */ #define UVM_LOAN_TOPAGE 0x2 /* loan to page */ /* * loan prototypes */ void uvm_loan_init(void); int uvm_loan(struct vm_map *, vaddr_t, vsize_t, void *, int); void uvm_unloan(void *, int, int); int uvm_loanuobjpages(struct uvm_object *, voff_t, int, struct vm_page **); struct vm_page *uvm_loanbreak(struct vm_page *); int uvm_loanbreak_anon(struct vm_anon *, struct uvm_object *); #endif /* _KERNEL */ #endif /* _UVM_UVM_LOAN_H_ */