162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 262306a36Sopenharmony_ci#ifndef FADVISE_H_INCLUDED 362306a36Sopenharmony_ci#define FADVISE_H_INCLUDED 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci#define POSIX_FADV_NORMAL 0 /* No further special treatment. */ 662306a36Sopenharmony_ci#define POSIX_FADV_RANDOM 1 /* Expect random page references. */ 762306a36Sopenharmony_ci#define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ 862306a36Sopenharmony_ci#define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci/* 1162306a36Sopenharmony_ci * The advise values for POSIX_FADV_DONTNEED and POSIX_ADV_NOREUSE 1262306a36Sopenharmony_ci * for s390-64 differ from the values for the rest of the world. 1362306a36Sopenharmony_ci */ 1462306a36Sopenharmony_ci#if defined(__s390x__) 1562306a36Sopenharmony_ci#define POSIX_FADV_DONTNEED 6 /* Don't need these pages. */ 1662306a36Sopenharmony_ci#define POSIX_FADV_NOREUSE 7 /* Data will be accessed once. */ 1762306a36Sopenharmony_ci#else 1862306a36Sopenharmony_ci#define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ 1962306a36Sopenharmony_ci#define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ 2062306a36Sopenharmony_ci#endif 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci#endif /* FADVISE_H_INCLUDED */ 23