BSD 4.4 Lite Kernel Sources

1 files changed, 60 insertions, 0 deletions

diff --git a/sys/sys/dmap.h b/sys/sys/dmap.h
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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
+ */
+
+#ifndef _SYS_DMAP_H_
+#define	_SYS_DMAP_H_
+
+/*
+ * 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
+struct dmap zdmap;
+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_ */