ftracetest: Do not use usleep directly

[sfrench/cifs-2.6.git] / tools / testing / selftests / ftrace / test.d / event / subsystem-enable.tc

diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
index ef9b95dc10c5512b657bf7b36148c6547c118344..ced27ef0638f2d3f21cd3a4fc436ebdd7bc8b259 100644 (file)
--- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
@@ -12,6 +12,10 @@ fail() { #msg
     exit $FAIL
 }
 
+yield() {
+    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
+}
+
 if [ ! -f set_event -o ! -d events/sched ]; then
     echo "event tracing is not supported"
     exit_unsupported
@@ -21,7 +25,8 @@ reset_tracer
 do_reset
 
 echo 'sched:*' > set_event
-usleep 1
+
+yield
 
 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -lt 3 ]; then
@@ -31,7 +36,8 @@ fi
 do_reset
 
 echo 1 > events/sched/enable
-usleep 1
+
+yield
 
 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -lt 3 ]; then
@@ -41,7 +47,8 @@ fi
 do_reset
 
 echo 0 > events/sched/enable
-usleep 1
+
+yield
 
 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -ne 0 ]; then