Lock KillAll.

Random-Liu · Random-Liu · commit 4cb837a5e5a9 · 2018-11-20T11:02:11.000-08:00
Signed-off-by: Lantao Liu &lt;lantaol@google.com&gt;
diff --git a/linux/proc/init.go b/linux/proc/init.go
@@ -290,7 +290,7 @@ func (p *Init) setExited(status int) {
 }
 
 func (p *Init) delete(context context.Context) error {
-	p.KillAll(context)
+	p.killAll(context)
 	p.wg.Wait()
 	err := p.runtime.Delete(context, p.id, nil)
 	// ignore errors if a runtime has already deleted the process
@@ -346,6 +346,12 @@ func (p *Init) kill(context context.Context, signal uint32, all bool) error {
 
 // KillAll processes belonging to the init process
 func (p *Init) KillAll(context context.Context) error {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	return p.killAll(context)
+}
+
+func (p *Init) killAll(context context.Context) error {
 	err := p.runtime.Kill(context, p.id, int(syscall.SIGKILL), &runc.KillOpts{
 		All: true,
 	})
