diff -Naur ./include/linux/blkdev.h ../linux-2.6.9/./include/linux/blkdev.h
--- ./include/linux/blkdev.h	2004-10-18 15:53:43.000000000 -0600
+++ ../linux-2.6.9/./include/linux/blkdev.h	2005-12-06 09:54:46.000000000 -0700
@@ -23,8 +23,10 @@
 typedef struct elevator_s elevator_t;
 struct request_pm_state;
 
-#define BLKDEV_MIN_RQ	4
-#define BLKDEV_MAX_RQ	128	/* Default maximum */
+//#define BLKDEV_MIN_RQ	4
+//#define BLKDEV_MAX_RQ	128	/* Default maximum */
+#define BLKDEV_MIN_RQ	4096
+#define BLKDEV_MAX_RQ	8192	/* Default maximum */