linux-2.6-block: deactivating pagecache for benchmarks

Last but not least the Kconfig-file from /linux/block

--- linux-2.6-block_clean/block/Kconfig 2005-11-30 16:12:30.000000000
+0100
+++ linux-2.6-block-pagecache-clean/block/Kconfig 2005-11-30 17:14:40.000000000 +0100
@@ -12,3 +12,9 @@ config LBD
bigger than 2TB. Otherwise say N.

source block/Kconfig.iosched
+
+config PAGECACHE_TOGGLE
+ bool "toggle for using pagecache reading from block-devices"
+ help
+ This is very useful if you would likr to do benchmarks on the
+ performance of the I/O-Schedulers.