828 	struct buffer_head **o_group_desc, **n_group_desc = NULL;  in add_new_gdb()  local
889 	n_group_desc = ext4_kvmalloc((gdb_num + 1) *  in add_new_gdb()
892 	if (!n_group_desc) {  in add_new_gdb()
928 	memcpy(n_group_desc, o_group_desc,  in add_new_gdb()
931 	n_group_desc[gdb_num] = gdb_bh;  in add_new_gdb()
932 	rcu_assign_pointer(EXT4_SB(sb)->s_group_desc, n_group_desc);  in add_new_gdb()
942 	kvfree(n_group_desc);  in add_new_gdb()
958 	struct buffer_head **o_group_desc, **n_group_desc;  in add_new_gdb_meta_bg()  local
967 	n_group_desc = ext4_kvmalloc((gdb_num + 1) *  in add_new_gdb_meta_bg()
970 	if (!n_group_desc) {  in add_new_gdb_meta_bg()
980 	memcpy(n_group_desc, o_group_desc,  in add_new_gdb_meta_bg()
983 	n_group_desc[gdb_num] = gdb_bh;  in add_new_gdb_meta_bg()
988 		kvfree(n_group_desc);  in add_new_gdb_meta_bg()
993 	rcu_assign_pointer(EXT4_SB(sb)->s_group_desc, n_group_desc);  in add_new_gdb_meta_bg()