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-rw-r--r--mm/swap_cgroup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/swap_cgroup.c b/mm/swap_cgroup.c
index fcd2740f4ed7..45affaef3bc6 100644
--- a/mm/swap_cgroup.c
+++ b/mm/swap_cgroup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/swap_cgroup.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>