1 files changed, 14 insertions, 8 deletions
diff --git a/logger/glog/glog.go b/logger/glog/glog.go
index b8eaf9359..14e405955 100644
--- a/logger/glog/glog.go
+++ b/logger/glog/glog.go
@@ -138,25 +138,28 @@ func SetV(v int) {
 	logging.verbosity.set(Level(v))
 }
 
-// SetVmodule sets the global verbosity patterns.
-func SetVmodule(pat string) error {
-	return logging.vmodule.Set(pat)
-}
-
 // SetToStderr sets the global output style
 func SetToStderr(toStderr bool) {
+	logging.mu.Lock()
 	logging.toStderr = toStderr
+	logging.mu.Unlock()
 }
 
-// GetTraceLocation returns the global TraceLocation object
+// GetTraceLocation returns the global TraceLocation flag.
 func GetTraceLocation() *TraceLocation {
 	return &logging.traceLocation
 }
 
+// GetVModule returns the global verbosity pattern flag.
 func GetVModule() *moduleSpec {
 	return &logging.vmodule
 }
 
+// GetVerbosity returns the global verbosity level flag.
+func GetVerbosity() *Level {
+	return &logging.verbosity
+}
+
 // get returns the value of the severity.
 func (s *severity) get() severity {
 	return severity(atomic.LoadInt32((*int32)(s)))
@@ -407,9 +410,13 @@ var errTraceSyntax = errors.New("syntax error: expect file.go:234")
 func (t *TraceLocation) Set(value string) error {
 	if value == "" {
 		// Unset.
+		logging.mu.Lock()
 		t.line = 0
 		t.file = ""
+		logging.mu.Unlock()
+		return nil
 	}
+
 	fields := strings.Split(value, ":")
 	if len(fields) != 2 {
 		return errTraceSyntax
@@ -449,8 +456,7 @@ func init() {
 
 	// Default stderrThreshold is ERROR.
 	logging.stderrThreshold = errorLog
-
-	logging.setVState(0, nil, false)
+	logging.setVState(3, nil, false)
 	go logging.flushDaemon()
 }