memory_hotplug-use-pgdat_resize_lock-in-__offline_pages-fix

fix build

Cc: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index e55bc6d9eed82f1b911df5e3fec46c39a014a545..f6e80502450a921d7ccb08e41efb2fe7305b0928 100644 (file)
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1492,6 +1492,7 @@ static int __ref __offline_pages(unsigned long start_pfn,
        unsigned long pfn, nr_pages, expire;
        long offlined_pages;
        int ret, drain, retry_max, node;
+       unsigned long flags;
        struct zone *zone;
        struct memory_notify arg;