perf test: Skip sched stats test for !root

Running perf sched stats requires root and it fails to open the
schedstat file for regular users.  Let's skip the test.

  $ perf sched stats true
  Failed to open /proc/sys/kernel/sched_schedstats

Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Swapnil Sapkal <swapnil.sapkal@amd.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

diff --git a/tools/perf/tests/shell/perf_sched_stats.sh b/tools/perf/tests/shell/perf_sched_stats.sh
index bef7714ef37af7b7c8fb2f1ef835611a307e4877..f13eb0a75b76ef5a77d5b3eedaf4d37c2fa0079c 100755 (executable)
--- a/tools/perf/tests/shell/perf_sched_stats.sh
+++ b/tools/perf/tests/shell/perf_sched_stats.sh
@@ -4,6 +4,11 @@
 
 set -e
 
+if [ "$(id -u)" != 0 ]; then
+  echo "[Skip] No root permission"
+  exit 2
+fi
+
 perfdata=$(mktemp /tmp/__perf_test_sched_stats.perf.data.XXXXX)
 perfdata2=$(mktemp /tmp/__perf_test_sched_stats.perf.data.XXXXX)