xref: /illumos-gate/usr/src/uts/common/sys/vm.h (revision 9164a50bf932130cbb5097a16f6986873ce0e6e5)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 1983, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
26 /*	  All Rights Reserved	*/
27 
28 /*
29  * University Copyright- Copyright (c) 1982, 1986, 1988
30  * The Regents of the University of California
31  * All Rights Reserved
32  *
33  * University Acknowledgment- Portions of this document are derived from
34  * software developed by the University of California, Berkeley, and its
35  * contributors.
36  */
37 
38 #ifndef _SYS_VM_H
39 #define	_SYS_VM_H
40 
41 #include <sys/vmparam.h>
42 #include <sys/vmsystm.h>
43 #include <sys/sysmacros.h>
44 
45 #ifdef	__cplusplus
46 extern "C" {
47 #endif
48 
49 #if defined(_KERNEL)
50 #include <sys/vnode.h>
51 
52 void	setupclock(void);
53 void	pageout(void);
54 void	cv_signal_pageout(void);
55 int	queue_io_request(struct vnode *, u_offset_t);
56 
57 extern	kmutex_t	memavail_lock;
58 extern	kcondvar_t	memavail_cv;
59 
60 #define	WAKE_PAGEOUT_SCANNER(tag)			\
61 	do {						\
62 		DTRACE_PROBE(schedpage__wake__ ## tag);	\
63 		cv_broadcast(&proc_pageout->p_cv);	\
64 	} while (0)
65 
66 #endif	/* defined(_KERNEL) */
67 
68 #ifdef	__cplusplus
69 }
70 #endif
71 
72 #endif	/* _SYS_VM_H */
73