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selftests: sync: differentiate between sync unsupported and access errors

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Sync test doesn't differentiate between sync unsupported and test run
by non-root user and treats both as unsupported cases.

Fix it to add handling for these two different scenarios.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
This commit is contained in:
Shuah Khan 2017-07-21 20:23:11 -06:00
parent 97e4936851
commit f6c44bbb79
1 changed files with 19 additions and 4 deletions
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23
tools/testing/selftests/sync/sync_test.c
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@ -31,6 +31,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <errno.h>
#include "synctest.h"
@ -56,18 +57,32 @@ static int run_test(int (*test)(void), char *name)
static int sync_api_supported(void)
{
struct stat sbuf;
int ret;
ret = stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
if (!ret)
return 0;
if (errno == ENOENT) {
printf("SKIP: Sync framework not supported by kernel\n");
exit(0);
}
if (errno == EACCES) {
printf("SKIP: Run Sync test as root.\n");
exit(0);
}
perror("stat");
exit(ret);
return 0 == stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
}
int main(void)
{
int err = 0;
if (!sync_api_supported()) {
printf("SKIP: Sync framework not supported by kernel\n");
if (!sync_api_supported())
return 0;
}
printf("[RUN]\tTesting sync framework\n");