From 57578c2ea2cb2e0d362a9212ac83cf90221d4883 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <willy@linux.intel.com>
Date: Fri, 20 May 2016 17:01:54 -0700
Subject: raxix-tree: introduce CONFIG_RADIX_TREE_MULTIORDER

I've been receiving increasingly concerned notes from 0day about how
much my recent changes have been bloating the radix tree.  Make it
happier by only including multiorder support if
CONFIG_TRANSPARENT_HUGEPAGES is set.

This is an independent Kconfig option, so other radix tree users can
also set it if they have a need.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jan Kara <jack@suse.com>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lib/Kconfig')

diff --git a/lib/Kconfig b/lib/Kconfig
index 61d55bd0ed89..d79909dc01ec 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -362,6 +362,9 @@ config INTERVAL_TREE
 
 	  for more information.
 
+config RADIX_TREE_MULTIORDER
+	bool
+
 config ASSOCIATIVE_ARRAY
 	bool
 	help
-- 
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