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/* * Mach Operating System * Copyright (c) 1989 Carnegie-Mellon University * All rights reserved. The CMU software License Agreement specifies * the terms and conditions for use and redistribution. */ /* * HISTORY * $Log: vadvise.h,v $ * Revision 2.3 89/03/09 22:10:08 rpd * More cleanup. * * Revision 2.2 89/02/25 17:58:14 gm0w * Changes for cleanup. * */ /* * Copyright (c) 1982, 1986 Regents of the University of California. * All rights reserved. The Berkeley software License Agreement * specifies the terms and conditions for redistribution. * * @(#)vadvise.h 7.1 (Berkeley) 6/4/86 */ #ifndef _SYS_VADVISE_H_ #define _SYS_VADVISE_H_ /* * Parameters to vadvise() to tell system of particular paging * behaviour: * VA_NORM Normal strategy * VA_ANOM Sampling page behaviour is not a win, don't bother * Suitable during GCs in LISP, or sequential or random * page referencing. * VA_SEQL Sequential behaviour expected. * VA_FLUSH Invalidate all page table entries. */ #define VA_NORM 0 #define VA_ANOM 1 #define VA_SEQL 2 #define VA_FLUSH 3 #endif
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