From f67c07f07fca95a7f330b8bb928eabaf9fcce75d Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <willy@linux.intel.com>
Date: Thu, 17 Mar 2016 14:21:42 -0700
Subject: [PATCH] radix-tree: add an explicit include of bitops.h

The radix-tree header uses the __ffs() function, which is defined in
bitops.h.  The current kernel headers implicitly include bitops.h, but
the userspace test harness does not.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/radix-tree.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index f54be7082207..39598b9cf1d9 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -21,6 +21,7 @@
 #ifndef _LINUX_RADIX_TREE_H
 #define _LINUX_RADIX_TREE_H
 
+#include <linux/bitops.h>
 #include <linux/preempt.h>
 #include <linux/types.h>
 #include <linux/bug.h>
-- 
2.20.1