| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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| 2 | #ifndef FADVISE_H_INCLUDED |
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| 3 | #define FADVISE_H_INCLUDED |
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| 4 | |
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| 5 | #define POSIX_FADV_NORMAL 0 /* No further special treatment. */ |
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| 6 | #define POSIX_FADV_RANDOM 1 /* Expect random page references. */ |
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| 7 | #define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ |
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| 8 | #define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ |
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| 9 | |
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| 10 | /* |
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| 11 | * The advise values for POSIX_FADV_DONTNEED and POSIX_ADV_NOREUSE |
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| 12 | * for s390-64 differ from the values for the rest of the world. |
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| 13 | */ |
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| 14 | #if defined(__s390x__) |
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| 15 | #define POSIX_FADV_DONTNEED 6 /* Don't need these pages. */ |
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| 16 | #define POSIX_FADV_NOREUSE 7 /* Data will be accessed once. */ |
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| 17 | #else |
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| 18 | #define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ |
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| 19 | #define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ |
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| 20 | #endif |
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| 21 | |
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| 22 | #endif /* FADVISE_H_INCLUDED */ |
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| 23 | |
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