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-rw-r--r--mm/page-writeback.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 07656485c0e6..bdbe8b6b1225 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* mm/page-writeback.c
*