xref: /titanic_52/usr/src/uts/common/sys/fs/swapnode.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate 
31*7c478bd9Sstevel@tonic-gate #ifndef	_SYS_FS_SWAPNODE_H
32*7c478bd9Sstevel@tonic-gate #define	_SYS_FS_SWAPNODE_H
33*7c478bd9Sstevel@tonic-gate 
34*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
37*7c478bd9Sstevel@tonic-gate extern "C" {
38*7c478bd9Sstevel@tonic-gate #endif
39*7c478bd9Sstevel@tonic-gate 
40*7c478bd9Sstevel@tonic-gate /*
41*7c478bd9Sstevel@tonic-gate  * pointer to swapfs global data structures
42*7c478bd9Sstevel@tonic-gate  */
43*7c478bd9Sstevel@tonic-gate extern pgcnt_t swapfs_minfree;		/* amount of availrmem (in pages) */
44*7c478bd9Sstevel@tonic-gate 					/* that is unavailable to swapfs */
45*7c478bd9Sstevel@tonic-gate extern pgcnt_t swapfs_desfree;
46*7c478bd9Sstevel@tonic-gate 
47*7c478bd9Sstevel@tonic-gate extern pgcnt_t swapfs_reserve;		/* amount of availrmem (in pages) */
48*7c478bd9Sstevel@tonic-gate 					/* that is unavailable for swap */
49*7c478bd9Sstevel@tonic-gate 					/* reservation to non-priv processes */
50*7c478bd9Sstevel@tonic-gate 
51*7c478bd9Sstevel@tonic-gate extern struct vnodeops *swap_vnodeops;
52*7c478bd9Sstevel@tonic-gate extern struct vnode *swapfs_getvp(ulong_t);
53*7c478bd9Sstevel@tonic-gate 
54*7c478bd9Sstevel@tonic-gate #ifdef SWAPFS_DEBUG
55*7c478bd9Sstevel@tonic-gate extern int swapfs_debug;
56*7c478bd9Sstevel@tonic-gate #define	SWAPFS_PRINT(X, S, Y1, Y2, Y3, Y4, Y5)	\
57*7c478bd9Sstevel@tonic-gate 	if (swapfs_debug & (X)) 		\
58*7c478bd9Sstevel@tonic-gate 		printf(S, Y1, Y2, Y3, Y4, Y5);
59*7c478bd9Sstevel@tonic-gate #define	SWAP_SUBR	0x01
60*7c478bd9Sstevel@tonic-gate #define	SWAP_VOPS	0x02
61*7c478bd9Sstevel@tonic-gate #define	SWAP_VFSOPS	0x04
62*7c478bd9Sstevel@tonic-gate #define	SWAP_PGC		0x08
63*7c478bd9Sstevel@tonic-gate #define	SWAP_PUTP	0x10
64*7c478bd9Sstevel@tonic-gate #else	/* SWAPFS_DEBUG */
65*7c478bd9Sstevel@tonic-gate #define	SWAPFS_PRINT(X, S, Y1, Y2, Y3, Y4, Y5)
66*7c478bd9Sstevel@tonic-gate #endif	/* SWAPFS_DEBUG */
67*7c478bd9Sstevel@tonic-gate 
68*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
69*7c478bd9Sstevel@tonic-gate }
70*7c478bd9Sstevel@tonic-gate #endif
71*7c478bd9Sstevel@tonic-gate 
72*7c478bd9Sstevel@tonic-gate #endif	/* _SYS_FS_SWAPNODE_H */
73