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Diffstat (limited to 'backport-include/linux/page_ref.h')
-rw-r--r--backport-include/linux/page_ref.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/backport-include/linux/page_ref.h b/backport-include/linux/page_ref.h
new file mode 100644
index 0000000..55fc14f
--- /dev/null
+++ b/backport-include/linux/page_ref.h
@@ -0,0 +1,13 @@
+#ifndef __BP_PAGE_REF_H
+#define __BP_PAGE_REF_H
+#include <linux/version.h>
+#if LINUX_VERSION_IS_GEQ(4,6,0)
+#include_next <linux/page_ref.h>
+#else
+static inline void page_ref_inc(struct page *page)
+{
+ atomic_inc(&page->_count);
+}
+#endif
+
+#endif /* __BP_PAGE_REF_H */