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// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#define __EXPORTED_HEADERS__
#include <stdio.h>
#include <stdlib.h>
#include <linux/fcntl.h>
#include <linux/memfd.h>
#include <unistd.h>
#include <sys/syscall.h>
#include "common.h"
int hugetlbfs_test = 0;
/*
* Copied from mlock2-tests.c
*/
unsigned long default_huge_page_size(void)
{
unsigned long hps = 0;
char *line = NULL;
size_t linelen = 0;
FILE *f = fopen("/proc/meminfo", "r");
if (!f)
return 0;
while (getline(&line, &linelen, f) > 0) {
if (sscanf(line, "Hugepagesize: %lu kB", &hps) == 1) {
hps <<= 10;
break;
}
}
free(line);
fclose(f);
return hps;
}
int sys_memfd_create(const char *name, unsigned int flags)
{
if (hugetlbfs_test)
flags |= MFD_HUGETLB;
return syscall(__NR_memfd_create, name, flags);
}
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