#ifndef FADVISE_H_INCLUDED#define FADVISE_H_INCLUDED#define POSIX_FADV_NORMAL 0 /* No further special treatment. */#define POSIX_FADV_RANDOM 1 /* Expect random page references. */#define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */#define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
/* * The advise values for POSIX_FADV_DONTNEED and POSIX_ADV_NOREUSE * for s390-64 differ from the values for the rest of the world. */#if defined(__s390x__)#define POSIX_FADV_DONTNEED 6 /* Don't need these pages. */#define POSIX_FADV_NOREUSE 7 /* Data will be accessed once. */#else
/* * Linux-specific fadvise() extensions: */#define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range */#define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range */
