mm: remove the second argument of k[un]map_atomic()

Signed-off-by: Cong Wang <amwang@redhat.com>
diff --git a/mm/shmem.c b/mm/shmem.c
index 269d049..b7e1955 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1656,9 +1656,9 @@
 		}
 		inode->i_mapping->a_ops = &shmem_aops;
 		inode->i_op = &shmem_symlink_inode_operations;
-		kaddr = kmap_atomic(page, KM_USER0);
+		kaddr = kmap_atomic(page);
 		memcpy(kaddr, symname, len);
-		kunmap_atomic(kaddr, KM_USER0);
+		kunmap_atomic(kaddr);
 		set_page_dirty(page);
 		unlock_page(page);
 		page_cache_release(page);