diff -ruN dist-2.4.6/include/linux/ide.h cobalt-2.4.6/include/linux/ide.h
--- dist-2.4.6/include/linux/ide.h Tue Jul 3 15:44:16 2001
+++ cobalt-2.4.6/include/linux/ide.h Mon Jul 9 15:56:19 2001
@@ -284,6 +284,7 @@
unsigned long service_time; /* service time of last request */
unsigned long timeout; /* max time to wait for irq */
special_t special; /* special action flags */
+ void *rwproc_cache; /* last rwproc update */
byte keep_settings; /* restore settings after drive reset */
byte using_dma; /* disk is using dma for read/write */
byte waiting_for_dma; /* dma currently in progress */