62 lines
2.5 KiB
C
62 lines
2.5 KiB
C
/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)dmap.h 8.2 (Berkeley) 1/4/94
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* $Id$
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*/
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#ifndef _SYS_DMAP_H_
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#define _SYS_DMAP_H_
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/*
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* Definitions for the mapping of vitual swap space to the physical swap
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* area - the disk map.
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*/
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#define NDMAP 38 /* size of the swap area map */
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struct dmap {
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swblk_t dm_size; /* current size used by process */
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swblk_t dm_alloc; /* amount of physical swap space allocated */
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swblk_t dm_map[NDMAP]; /* first disk block number in each chunk */
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};
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#ifdef KERNEL
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extern struct dmap zdmap;
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extern int dmmin, dmmax, dmtext;
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#endif
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/* The following structure is that ``returned'' from a call to vstodb(). */
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struct dblock {
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swblk_t db_base; /* base of physical contig drum block */
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swblk_t db_size; /* size of block */
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};
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#endif /* !_SYS_DMAP_H_ */
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