[PATCH] page-flags.h: Fix a missing header include of static_keys.h

[Feiyang Chen <chris.chenfeiyang@xxxxxxxxx>]

The page-flags.h header relies on static keys since commit
a6b40850c442bf ("mm: hugetlb: replace hugetlb_free_vmemmap_enabled
with a static_key"), so make sure to include the header to avoid
compilation errors.

Fixes: a6b40850c442bf ("mm: hugetlb: replace hugetlb_free_vmemmap_enabled with a static_key")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Feiyang Chen <chenfeiyang@xxxxxxxxxxx>
---
 include/linux/page-flags.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index e66f7aa3191d..147b336c7a35 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -11,6 +11,7 @@
 #include <linux/mmdebug.h>
 #ifndef __GENERATING_BOUNDS_H
 #include <linux/mm_types.h>
+#include <linux/static_key.h>
 #include <generated/bounds.h>
 #endif /* !__GENERATING_BOUNDS_H */
 
-- 
2.27.0