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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef FADVISE_H_INCLUDED
2#define FADVISE_H_INCLUDED
3
4#define POSIX_FADV_NORMAL 0 /* No further special treatment. */
5#define POSIX_FADV_RANDOM 1 /* Expect random page references. */
6#define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
7#define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
Martin Schwidefsky068e1b92005-07-13 01:10:46 -07008
9/*
10 * The advise values for POSIX_FADV_DONTNEED and POSIX_ADV_NOREUSE
11 * for s390-64 differ from the values for the rest of the world.
12 */
13#if defined(__s390x__)
14#define POSIX_FADV_DONTNEED 6 /* Don't need these pages. */
15#define POSIX_FADV_NOREUSE 7 /* Data will be accessed once. */
16#else
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
18#define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
Martin Schwidefsky068e1b92005-07-13 01:10:46 -070019#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
21#endif /* FADVISE_H_INCLUDED */