Merge branch 'bkl-removal' into next

[pandora-kernel.git] / arch / s390 / mm / init.c

diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 0559864..388cc74 100644 (file)
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -202,3 +202,22 @@ void free_initrd_mem(unsigned long start, unsigned long end)
         }
 }
 #endif
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+int arch_add_memory(int nid, u64 start, u64 size)
+{
+       struct pglist_data *pgdat;
+       struct zone *zone;
+       int rc;
+
+       pgdat = NODE_DATA(nid);
+       zone = pgdat->node_zones + ZONE_NORMAL;
+       rc = vmem_add_mapping(start, size);
+       if (rc)
+               return rc;
+       rc = __add_pages(zone, PFN_DOWN(start), PFN_DOWN(size));
+       if (rc)
+               vmem_remove_mapping(start, size);
+       return rc;
+}
+#endif /* CONFIG_MEMORY_HOTPLUG */