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60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _LINUX_MMAN_H
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#define _LINUX_MMAN_H
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#include <asm/mman.h>
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#include <asm-generic/hugetlb_encode.h>
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#include <linux/types.h>
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#define MREMAP_MAYMOVE 1
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#define MREMAP_FIXED 2
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#define MREMAP_DONTUNMAP 4
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#define OVERCOMMIT_GUESS 0
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#define OVERCOMMIT_ALWAYS 1
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#define OVERCOMMIT_NEVER 2
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#define MAP_SHARED 0x01 /* Share changes */
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#define MAP_PRIVATE 0x02 /* Changes are private */
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#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */
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#define MAP_DROPPABLE 0x08 /* Zero memory under memory pressure. */
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/*
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* Huge page size encoding when MAP_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 MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT
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#define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK
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#define MAP_HUGE_16KB HUGETLB_FLAG_ENCODE_16KB
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#define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB
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#define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB
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#define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB
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#define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB
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#define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB
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#define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB
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#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB
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#define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB
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#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB
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#define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB
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#define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB
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#define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB
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struct cachestat_range {
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__u64 off;
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__u64 len;
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};
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struct cachestat {
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__u64 nr_cache;
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__u64 nr_dirty;
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__u64 nr_writeback;
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__u64 nr_evicted;
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__u64 nr_recently_evicted;
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};
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#endif /* _LINUX_MMAN_H */
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