20a2191c2e
Remove sudo as some test running environments may not have sudo available. Instead skip the test if root privileges aren't available in the test. [usama.anjum@collabora.com: on-fault-limit: run test without root privileges otherwise skip] Link: https://lkml.kernel.org/r/20240201130538.1404897-1-usama.anjum@collabora.com Link: https://lkml.kernel.org/r/20240125154608.720072-3-usama.anjum@collabora.com Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
42 lines
937 B
C
42 lines
937 B
C
// 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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