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linux-kselftest-fixes-5.18-rc3

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This Kselftest fixes update consists of a mqueue perf test memory leak
 bug fix. mq_perf_tests fail to call CPU_FREE to free memory allocated
 by CPU_SET.
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Merge tag 'linux-kselftest-fixes-5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fixes from Shuah Khan:
 "A mqueue perf test memory leak bug fix.

  mq_perf_tests failed to call CPU_FREE to free memory allocated by
  CPU_SET"

* tag 'linux-kselftest-fixes-5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  testing/selftests/mqueue: Fix mq_perf_tests to free the allocated cpu set
This commit is contained in:
Linus Torvalds 2022-04-15 11:24:32 -07:00
commit bb34e0dba3
1 changed files with 17 additions and 8 deletions
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25
tools/testing/selftests/mqueue/mq_perf_tests.c
View File

@ -180,6 +180,9 @@ void shutdown(int exit_val, char *err_cause, int line_no)
if (in_shutdown++)
return;
/* Free the cpu_set allocated using CPU_ALLOC in main function */
CPU_FREE(cpu_set);
for (i = 0; i < num_cpus_to_pin; i++)
if (cpu_threads[i]) {
pthread_kill(cpu_threads[i], SIGUSR1);
@ -551,6 +554,12 @@ int main(int argc, char *argv[])
perror("sysconf(_SC_NPROCESSORS_ONLN)");
exit(1);
}
if (getuid() != 0)
ksft_exit_skip("Not running as root, but almost all tests "
"require root in order to modify\nsystem settings. "
"Exiting.\n");
cpus_online = min(MAX_CPUS, sysconf(_SC_NPROCESSORS_ONLN));
cpu_set = CPU_ALLOC(cpus_online);
if (cpu_set == NULL) {
@ -589,7 +598,7 @@ int main(int argc, char *argv[])
cpu_set)) {
fprintf(stderr, "Any given CPU may "
"only be given once.\n");
exit(1);
goto err_code;
} else
CPU_SET_S(cpus_to_pin[cpu],
cpu_set_size, cpu_set);
@ -607,7 +616,7 @@ int main(int argc, char *argv[])
queue_path = malloc(strlen(option) + 2);
if (!queue_path) {
perror("malloc()");
exit(1);
goto err_code;
}
queue_path[0] = '/';
queue_path[1] = 0;
@ -622,17 +631,12 @@ int main(int argc, char *argv[])
fprintf(stderr, "Must pass at least one CPU to continuous "
"mode.\n");
poptPrintUsage(popt_context, stderr, 0);
exit(1);
goto err_code;
} else if (!continuous_mode) {
num_cpus_to_pin = 1;
cpus_to_pin[0] = cpus_online - 1;
}
if (getuid() != 0)
ksft_exit_skip("Not running as root, but almost all tests "
"require root in order to modify\nsystem settings. "
"Exiting.\n");
max_msgs = fopen(MAX_MSGS, "r+");
max_msgsize = fopen(MAX_MSGSIZE, "r+");
if (!max_msgs)
@ -740,4 +744,9 @@ int main(int argc, char *argv[])
sleep(1);
}
shutdown(0, "", 0);
err_code:
CPU_FREE(cpu_set);
exit(1);
}