From: Rik van Riel <riel@redhat.com>
Date: Fri, 28 Sep 2012 00:19:51 +0000 (+1000)
Subject: mm: enable CONFIG_COMPACTION by default
X-Git-Tag: next-20121004~1^2~225
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8630e5b716425c7732ec7d6a14435b9211cb6689;p=karo-tx-linux.git

mm: enable CONFIG_COMPACTION by default

Now that lumpy reclaim has been removed, compaction is the only way left
to free up contiguous memory areas.  It is time to just enable
CONFIG_COMPACTION by default.

Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: Rafael Aquini <aquini@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/Kconfig b/mm/Kconfig
index 3322342a1ffb..a3f8dddaaab3 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -191,6 +191,7 @@ config SPLIT_PTLOCK_CPUS
 # support for memory compaction
 config COMPACTION
 	bool "Allow for memory compaction"
+	def_bool y
 	select MIGRATION
 	depends on MMU
 	help