| #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 |
| #define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ |
| #define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ |
| #endif |
| |
| /* |
| * 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 */ |
| |
| #endif /* FADVISE_H_INCLUDED */ |