diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 4cfce1ee31faaf4f2f6aab966acd5d6001753940..50461b8c23a4e5db84719c67350cb7663a2fe0fc 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -766,7 +766,8 @@ static int ceph_writepages_start(struct address_space *mapping,
 			/* ok */
 			if (locked_pages == 0) {
 				/* prepare async write request */
-				offset = page->index << PAGE_CACHE_SHIFT;
+				offset = (unsigned long long)page->index
+					<< PAGE_CACHE_SHIFT;
 				len = wsize;
 				req = ceph_osdc_new_request(&client->osdc,
 					    &ci->i_layout,