Enable the adaptive readahead logic by default.

It helps collect more early testers, and is meant to be a -mm only patch.

Signed-off-by: Wu Fengguang <wfg@mail.ustc.edu.cn>
Signed-off-by: Andrew Morton <akpm@osdl.org>
--- linux-2.6.19-rc5-mm1.orig/mm/Kconfig
+++ linux-2.6.19-rc5-mm1/mm/Kconfig
@@ -168,7 +168,7 @@ config ZONE_DMA_FLAG
 #
 config ADAPTIVE_READAHEAD
 	bool "Adaptive file readahead (EXPERIMENTAL)"
-	default n
+	default y
 	depends on EXPERIMENTAL
 	help
 	  Readahead is a technique employed by the kernel in an attempt

--
-
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