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