linux-headers (unknown)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef FADVISE_H_INCLUDED
3 #define FADVISE_H_INCLUDED
4
5 #define POSIX_FADV_NORMAL 0 /* No further special treatment. */
6 #define POSIX_FADV_RANDOM 1 /* Expect random page references. */
7 #define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
8 #define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
9
10 /*
11 * The advise values for POSIX_FADV_DONTNEED and POSIX_ADV_NOREUSE
12 * for s390-64 differ from the values for the rest of the world.
13 */
14 #if defined(__s390x__)
15 #define POSIX_FADV_DONTNEED 6 /* Don't need these pages. */
16 #define POSIX_FADV_NOREUSE 7 /* Data will be accessed once. */
17 #else
18 #define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
19 #define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
20 #endif
21
22 #endif /* FADVISE_H_INCLUDED */
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