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Annotation of 43BSD/sys/h/vadvise.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)vadvise.h   7.1 (Berkeley) 6/4/86
                      7:  */
                      8: 
                      9: /*
                     10:  * Parameters to vadvise() to tell system of particular paging
                     11:  * behaviour:
                     12:  *     VA_NORM         Normal strategy
                     13:  *     VA_ANOM         Sampling page behaviour is not a win, don't bother
                     14:  *                     Suitable during GCs in LISP, or sequential or random
                     15:  *                     page referencing.
                     16:  *     VA_SEQL         Sequential behaviour expected.
                     17:  *     VA_FLUSH        Invalidate all page table entries.
                     18:  */
                     19: #define        VA_NORM 0
                     20: #define        VA_ANOM 1
                     21: #define        VA_SEQL 2
                     22: #define        VA_FLUSH 3

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