xref: /onnv-gate/usr/src/uts/common/sys/fs/swapnode.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #ifndef	_SYS_FS_SWAPNODE_H
32*0Sstevel@tonic-gate #define	_SYS_FS_SWAPNODE_H
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate #ifdef	__cplusplus
37*0Sstevel@tonic-gate extern "C" {
38*0Sstevel@tonic-gate #endif
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate /*
41*0Sstevel@tonic-gate  * pointer to swapfs global data structures
42*0Sstevel@tonic-gate  */
43*0Sstevel@tonic-gate extern pgcnt_t swapfs_minfree;		/* amount of availrmem (in pages) */
44*0Sstevel@tonic-gate 					/* that is unavailable to swapfs */
45*0Sstevel@tonic-gate extern pgcnt_t swapfs_desfree;
46*0Sstevel@tonic-gate 
47*0Sstevel@tonic-gate extern pgcnt_t swapfs_reserve;		/* amount of availrmem (in pages) */
48*0Sstevel@tonic-gate 					/* that is unavailable for swap */
49*0Sstevel@tonic-gate 					/* reservation to non-priv processes */
50*0Sstevel@tonic-gate 
51*0Sstevel@tonic-gate extern struct vnodeops *swap_vnodeops;
52*0Sstevel@tonic-gate extern struct vnode *swapfs_getvp(ulong_t);
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate #ifdef SWAPFS_DEBUG
55*0Sstevel@tonic-gate extern int swapfs_debug;
56*0Sstevel@tonic-gate #define	SWAPFS_PRINT(X, S, Y1, Y2, Y3, Y4, Y5)	\
57*0Sstevel@tonic-gate 	if (swapfs_debug & (X)) 		\
58*0Sstevel@tonic-gate 		printf(S, Y1, Y2, Y3, Y4, Y5);
59*0Sstevel@tonic-gate #define	SWAP_SUBR	0x01
60*0Sstevel@tonic-gate #define	SWAP_VOPS	0x02
61*0Sstevel@tonic-gate #define	SWAP_VFSOPS	0x04
62*0Sstevel@tonic-gate #define	SWAP_PGC		0x08
63*0Sstevel@tonic-gate #define	SWAP_PUTP	0x10
64*0Sstevel@tonic-gate #else	/* SWAPFS_DEBUG */
65*0Sstevel@tonic-gate #define	SWAPFS_PRINT(X, S, Y1, Y2, Y3, Y4, Y5)
66*0Sstevel@tonic-gate #endif	/* SWAPFS_DEBUG */
67*0Sstevel@tonic-gate 
68*0Sstevel@tonic-gate #ifdef	__cplusplus
69*0Sstevel@tonic-gate }
70*0Sstevel@tonic-gate #endif
71*0Sstevel@tonic-gate 
72*0Sstevel@tonic-gate #endif	/* _SYS_FS_SWAPNODE_H */
73