diff --git a/fs/exec.c b/fs/exec.c
index 87e731f020fbe2493cba43df1a275201793c6942..260f89f66651ec3124425a832dbf56bb8ea25df6 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1027,17 +1027,7 @@ EXPORT_SYMBOL_GPL(get_task_comm);
 void set_task_comm(struct task_struct *tsk, char *buf)
 {
 	task_lock(tsk);
-
 	trace_task_rename(tsk, buf);
-
-	/*
-	 * Threads may access current->comm without holding
-	 * the task lock, so write the string carefully.
-	 * Readers without a lock may see incomplete new
-	 * names but are safe from non-terminating string reads.
-	 */
-	memset(tsk->comm, 0, TASK_COMM_LEN);
-	wmb();
 	strlcpy(tsk->comm, buf, sizeof(tsk->comm));
 	task_unlock(tsk);
 	perf_event_comm(tsk);