Signed-off-by: xavier.bru@bull.net
Signed-off-by: frederic.temporelli@bull.net

--- linux/drivers/scsi/aic7xxx/aic79xx_osm.c    2006-08-23 23:16:33.000000000 +0200
+++ linux-new/drivers/scsi/aic7xxx/aic79xx_osm.c        2006-09-14 16:44:24.000000000 +0200
@@ -62,6 +62,7 @@

 #include <linux/mm.h>          /* For fetching system memory size */

+extern unsigned long blk_max_pfn;
 static struct scsi_transport_template *ahd_linux_transport_template = NULL;

 #include <linux/init.h>                /* __setup */
@@ -1175,10 +1176,9 @@ ahd_linux_register_host(struct ahd_softc
 uint64_t
 ahd_linux_get_memsize(void)
 {
-       struct sysinfo si;
-
-       si_meminfo(&si);
-       return ((uint64_t)si.totalram << PAGE_SHIFT);
+       /* Need to take in account the max physical address in case
+        * of discontiguous memory. */
+       return ((uint64_t)blk_max_pfn << PAGE_SHIFT);
 }

 /*