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selftests/mm: run_vmtests: remove sudo and conform to tap

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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>
This commit is contained in:
Muhammad Usama Anjum 2024-01-25 20:46:05 +05:00 committed by Andrew Morton
parent f2943f3f08
commit 20a2191c2e
2 changed files with 24 additions and 21 deletions
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38
tools/testing/selftests/mm/on-fault-limit.c
View File

@ -5,40 +5,38 @@
#include <string.h>
#include <sys/time.h>
#include <sys/resource.h>
#include "../kselftest.h"
static int test_limit(void)
static void test_limit(void)
{
int ret = 1;
struct rlimit lims;
void *map;
if (getrlimit(RLIMIT_MEMLOCK, &lims)) {
perror("getrlimit");
return ret;
}
if (getrlimit(RLIMIT_MEMLOCK, &lims))
ksft_exit_fail_msg("getrlimit: %s\n", strerror(errno));
if (mlockall(MCL_ONFAULT | MCL_FUTURE)) {
perror("mlockall");
return ret;
}
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);
if (map != MAP_FAILED)
printf("mmap should have failed, but didn't\n");
else {
ret = 0;
munmap(map, 2 * lims.rlim_max);
}
ksft_test_result(map == MAP_FAILED, "The map failed respecting mlock limits\n");
if (map != MAP_FAILED)
munmap(map, 2 * lims.rlim_max);
munlockall();
return ret;
}
int main(int argc, char **argv)
{
int ret = 0;
ksft_print_header();
ksft_set_plan(1);
ret += test_limit();
return ret;
if (!getuid())
ksft_test_result_skip("The test must be run from a normal user\n");
else
test_limit();
ksft_finished();
}

7
tools/testing/selftests/mm/run_vmtests.sh
View File

@ -291,7 +291,12 @@ echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages
CATEGORY="compaction" run_test ./compaction_test
CATEGORY="mlock" run_test sudo -u nobody ./on-fault-limit
if command -v sudo &> /dev/null;
then
CATEGORY="mlock" run_test sudo -u nobody ./on-fault-limit
else
echo "# SKIP ./on-fault-limit"
fi
CATEGORY="mmap" run_test ./map_populate