FreeBSD/Linux Kernel Cross Reference
sys/uvm/uvm_loan.h
1 /* $NetBSD: uvm_loan.h,v 1.13 2004/03/24 07:55:01 junyoung Exp $ */
2
3 /*
4 *
5 * Copyright (c) 1997 Charles D. Cranor and Washington University.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Charles D. Cranor and
19 * Washington University.
20 * 4. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * from: Id: uvm_loan.h,v 1.1.4.1 1997/12/08 16:07:14 chuck Exp
35 */
36
37 #ifndef _UVM_UVM_LOAN_H_
38 #define _UVM_UVM_LOAN_H_
39
40 #ifdef _KERNEL
41
42 /*
43 * flags for uvm_loan()
44 */
45
46 #define UVM_LOAN_TOANON 0x1 /* loan to anon */
47 #define UVM_LOAN_TOPAGE 0x2 /* loan to page */
48
49 /*
50 * loan prototypes
51 */
52
53 void uvm_loan_init(void);
54 int uvm_loan(struct vm_map *, vaddr_t, vsize_t, void *, int);
55 void uvm_unloan(void *, int, int);
56 int uvm_loanuobjpages(struct uvm_object *, voff_t, int,
57 struct vm_page **);
58 struct vm_page *uvm_loanbreak(struct vm_page *);
59
60 #endif /* _KERNEL */
61
62 #endif /* _UVM_UVM_LOAN_H_ */
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