--- compsize-git-2e5110d50.old/radix-tree.h
+++ compsize-git-2e5110d50/radix-tree.h
@@ -37,11 +37,15 @@
 #ifndef _LINUX_RADIX_TREE_H
 #define _LINUX_RADIX_TREE_H
 
-#if BTRFS_FLAT_INCLUDES
-#include "kerncompat.h"
-#else
-#include <btrfs/kerncompat.h>
-#endif /* BTRFS_FLAT_INCLUDES */
+#include <errno.h>
+#include <string.h>
+
+#define gfp_t int
+#define GFP_KERNEL 0
+#define IS_ALIGNED(x,a) (((x) & ((typeof(x))(a) - 1)) == 0)
+#define preempt_enable() do {} while (0)
+
+// #include "kerncompat.h"
 
 #define RADIX_TREE_MAX_TAGS 2
 
==== end of patch ====