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// SPDX-License-Identifier: GPL-2.0
#include <sys/mman.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/time.h>
#include <sys/resource.h>
#include "../kselftest.h"
static void test_limit(void)
{
struct rlimit lims;
void *map;
if (getrlimit(RLIMIT_MEMLOCK, &lims))
ksft_exit_fail_msg("getrlimit: %s\n", strerror(errno));
if (mlockall(MCL_ONFAULT | MCL_FUTURE))
ksft_exit_fail_msg("mlockall: %s\n", strerror(errno));
map = mmap(NULL, 2 * lims.rlim_max, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, -1, 0);
ksft_test_result(map == MAP_FAILED, "The map failed respecting mlock limits\n");
if (map != MAP_FAILED)
munmap(map, 2 * lims.rlim_max);
munlockall();
}
int main(int argc, char **argv)
{
ksft_print_header();
ksft_set_plan(1);
if (!getuid())
ksft_test_result_skip("The test must be run from a normal user\n");
else
test_limit();
ksft_finished();
}
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