linux-kernel - [PATCH -mm] enable CONFIG

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Date:	Thu, 13 Sep 2012 16:21:04 -0400
From:	Rik van Riel <riel@...hat.com>
To:	linux-mm@...ck.org
Cc:	linux-kernel@...r.kernel.org, Mel Gorman <mel@....ul.ie>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH -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@...hat.com>

diff --git a/mm/Kconfig b/mm/Kconfig
index d5c8019..32ea0ef 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
--
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