Quelle mman.h Sprache: C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_MMAN_H
#define _UAPI_LINUX_MMAN_H

#include <asm/mman.h>
#include <asm-generic/hugetlb_encode.h>
#include <linux/types.h>

#define MREMAP_MAYMOVE  1
#define MREMAP_FIXED  2
#define MREMAP_DONTUNMAP 4

#define OVERCOMMIT_GUESS  0
#define OVERCOMMIT_ALWAYS  1
#define OVERCOMMIT_NEVER  2

#define MAP_SHARED 0x01  /* Share changes */
#define MAP_PRIVATE 0x02  /* Changes are private */
#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */
#define MAP_DROPPABLE 0x08  /* Zero memory under memory pressure. */

/*
* Huge page size encoding when MAP_HUGETLB is specified, and a huge page
* size other than the default is desired.  See hugetlb_encode.h.
* All known huge page size encodings are provided here.  It is the
* responsibility of the application to know which sizes are supported on
* the running system.  See mmap(2) man page for details.
*/
#define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT
#define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK

#define MAP_HUGE_16KB HUGETLB_FLAG_ENCODE_16KB
#define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB
#define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB
#define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB
#define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB
#define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB
#define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB
#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB
#define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB
#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB
#define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB
#define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB
#define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB

struct cachestat_range {
__u64 off;
__u64 len;
};

struct cachestat {
__u64 nr_cache;
__u64 nr_dirty;
__u64 nr_writeback;
__u64 nr_evicted;
__u64 nr_recently_evicted;
};

#endif /* _UAPI_LINUX_MMAN_H */

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