radix tree test suite: Reduce kernel.h
Many of the definitions in the radix-tree kernel.h are redundant with
others in tools/include, or are no longer used, such as panic().
Move the definition of __init to init.h and in_interrupt() to preempt.h
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
diff --git a/tools/testing/radix-tree/linux/preempt.h b/tools/testing/radix-tree/linux/preempt.h
index 65c04c2..35c5ac8 100644
--- a/tools/testing/radix-tree/linux/preempt.h
+++ b/tools/testing/radix-tree/linux/preempt.h
@@ -1,4 +1,14 @@
+#ifndef __LINUX_PREEMPT_H
+#define __LINUX_PREEMPT_H
+
extern int preempt_count;
#define preempt_disable() uatomic_inc(&preempt_count)
#define preempt_enable() uatomic_dec(&preempt_count)
+
+static inline int in_interrupt(void)
+{
+ return 0;
+}
+
+#endif /* __LINUX_PREEMPT_H */