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/*-
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)dmap.h 8.2 (Berkeley) 1/4/94
* $FreeBSD$
*/
#ifndef _SYS_DMAP_H_
#define _SYS_DMAP_H_
typedef int32_t swblk_t; /* swap offset */
/*
* Definitions for the mapping of vitual swap space to the physical swap
* area - the disk map.
*/
#define NDMAP 38 /* size of the swap area map */
struct dmap {
swblk_t dm_size; /* current size used by process */
swblk_t dm_alloc; /* amount of physical swap space allocated */
swblk_t dm_map[NDMAP]; /* first disk block number in each chunk */
};
#ifdef _KERNEL
extern struct dmap zdmap;
extern int dmmin, dmmax, dmtext;
#endif
/* The following structure is that ``returned'' from a call to vstodb(). */
struct dblock {
swblk_t db_base; /* base of physical contig drum block */
swblk_t db_size; /* size of block */
};
#endif /* !_SYS_DMAP_H_ */
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