diff -ur --exclude-from /home/axboe/exclude /opt/kernel/linux-2.4.9/arch/i386/kernel/setup.c linux/arch/i386/kernel/setup.c
--- /opt/kernel/linux-2.4.9/arch/i386/kernel/setup.c	Wed Jul 11 18:31:44 2001
+++ linux/arch/i386/kernel/setup.c	Mon Aug 27 15:03:14 2001
@@ -152,6 +152,8 @@
 static int disable_x86_serial_nr __initdata = 1;
 static int disable_x86_fxsr __initdata = 0;
 
+unsigned long max_pfn;
+
 /*
  * This is set up by the setup-routine at boot-time
  */
@@ -768,7 +770,7 @@
 void __init setup_arch(char **cmdline_p)
 {
 	unsigned long bootmap_size, low_mem_size;
-	unsigned long start_pfn, max_pfn, max_low_pfn;
+	unsigned long start_pfn, max_low_pfn;
 	int i;
 
 #ifdef CONFIG_VISWS
diff -ur --exclude-from /home/axboe/exclude /opt/kernel/linux-2.4.9/drivers/block/ll_rw_blk.c linux/drivers/block/ll_rw_blk.c
--- /opt/kernel/linux-2.4.9/drivers/block/ll_rw_blk.c	Tue Aug 28 12:51:56 2001
+++ linux/drivers/block/ll_rw_blk.c	Mon Aug 27 15:03:42 2001
@@ -125,7 +125,7 @@
  */
 static int queue_nr_requests, batch_requests;
 
-unsigned long blk_max_low_pfn;
+unsigned long blk_max_low_pfn, blk_max_pfn;
 
 static inline int get_max_sectors(kdev_t dev)
 {
@@ -1207,6 +1207,7 @@
 	printk("block: %d slots per queue, batch=%d\n", queue_nr_requests, batch_requests);
 
 	blk_max_low_pfn = max_low_pfn;
+	blk_max_pfn = max_pfn;
 
 #ifdef CONFIG_AMIGA_Z2RAM
 	z2_init();
@@ -1328,4 +1329,5 @@
 EXPORT_SYMBOL(generic_unplug_device);
 EXPORT_SYMBOL(blk_queue_bounce_limit);
 EXPORT_SYMBOL(blk_max_low_pfn);
+EXPORT_SYMBOL(blk_max_pfn);
 EXPORT_SYMBOL(blk_seg_merge_ok);
diff -ur --exclude-from /home/axboe/exclude /opt/kernel/linux-2.4.9/include/linux/blkdev.h linux/include/linux/blkdev.h
--- /opt/kernel/linux-2.4.9/include/linux/blkdev.h	Tue Aug 28 12:51:56 2001
+++ linux/include/linux/blkdev.h	Mon Aug 27 14:58:02 2001
@@ -126,10 +126,10 @@
 	wait_queue_head_t	wait_for_request;
 };
 
-extern unsigned long blk_max_low_pfn;
+extern unsigned long blk_max_low_pfn, blk_max_pfn;
 
 #define BLK_BOUNCE_HIGH		(blk_max_low_pfn * PAGE_SIZE)
-#define BLK_BOUNCE_ANY		(~(unsigned long long) 0)
+#define BLK_BOUNCE_ANY		(blk_max_pfn * PAGE_SIZE)
 
 extern void blk_queue_bounce_limit(request_queue_t *, dma64_addr_t);
 
diff -ur --exclude-from /home/axboe/exclude /opt/kernel/linux-2.4.9/include/linux/bootmem.h linux/include/linux/bootmem.h
--- /opt/kernel/linux-2.4.9/include/linux/bootmem.h	Wed Aug 15 23:22:13 2001
+++ linux/include/linux/bootmem.h	Mon Aug 27 14:53:47 2001
@@ -18,6 +18,11 @@
 extern unsigned long min_low_pfn;
 
 /*
+ * highest page
+ */
+extern unsigned long max_pfn;
+
+/*
  * node_bootmem_map is a map pointer - the bits represent all physical 
  * memory pages (including holes) on the node.
  */