License cleanup: add SPDX GPL-2.0 license identifier to files with no license
[linux-block.git] / fs / btrfs / extent_map.c
index 69850155870c067d82768c67f3895a2e7a7c487d..2e348fb0b280d64ae158a28713e33a8d48f0598d 100644 (file)
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>