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35 lines
1.3 KiB
35 lines
1.3 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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#ifndef _UAPI_LINUX_MEMFD_H |
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#define _UAPI_LINUX_MEMFD_H |
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#include <asm-generic/hugetlb_encode.h> |
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/* flags for memfd_create(2) (unsigned int) */ |
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#define MFD_CLOEXEC 0x0001U |
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#define MFD_ALLOW_SEALING 0x0002U |
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#define MFD_HUGETLB 0x0004U |
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/* |
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* Huge page size encoding when MFD_HUGETLB is specified, and a huge page |
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* size other than the default is desired. See hugetlb_encode.h. |
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* All known huge page size encodings are provided here. It is the |
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* responsibility of the application to know which sizes are supported on |
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* the running system. See mmap(2) man page for details. |
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*/ |
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#define MFD_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT |
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#define MFD_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK |
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#define MFD_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB |
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#define MFD_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB |
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#define MFD_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB |
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#define MFD_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB |
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#define MFD_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB |
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#define MFD_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB |
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#define MFD_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB |
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#define MFD_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB |
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#define MFD_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB |
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#define MFD_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB |
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#define MFD_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB |
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#define MFD_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB |
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#endif /* _UAPI_LINUX_MEMFD_H */
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