diff -urN linux-2.4.11-pre2/drivers/char/sysrq.c linux.to-linus/drivers/char/sysrq.c
--- linux-2.4.11-pre2/drivers/char/sysrq.c	Mon Oct  1 18:13:04 2001
+++ linux.to-linus/drivers/char/sysrq.c	Tue Oct  2 05:42:41 2001
@@ -231,7 +231,7 @@
 static void sysrq_handle_mountro(int key, struct pt_regs *pt_regs,
 		struct kbd_struct *kbd, struct tty_struct *tty) {
 	emergency_sync_scheduled = EMERG_REMOUNT;
-	wakeup_bdflush(0);
+	wakeup_bdflush();
 }
 static struct sysrq_key_op sysrq_mountro_op = {
 	handler:	sysrq_handle_mountro,