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-rw-r--r--backport-include/linux/percpu.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/backport-include/linux/percpu.h b/backport-include/linux/percpu.h
new file mode 100644
index 0000000..10be03c
--- /dev/null
+++ b/backport-include/linux/percpu.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2018 Intel Corporation
+ */
+#ifndef __BACKPORT_PERCPU_H
+#define __BACKPORT_PERCPU_H
+#include_next <linux/percpu.h>
+
+#if LINUX_VERSION_IS_LESS(3,18,0)
+static inline void __percpu *__alloc_gfp_warn(void)
+{
+ WARN(1, "Cannot backport alloc_percpu_gfp");
+ return NULL;
+}
+
+#define alloc_percpu_gfp(type, gfp) \
+ ({ (gfp == GFP_KERNEL) ? alloc_percpu(type) : __alloc_gfp_warn(); })
+#endif /* LINUX_VERSION_IS_LESS(3,18,0) */
+
+#endif /* __BACKPORT_PERCPU_H */