1#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. */ 8 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 17#define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ 18#define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ 19#endif 20 21#endif /* FADVISE_H_INCLUDED */ 22