Hello,
On Mon, 16 Apr 2012, Hans Schillstrom wrote:
> > But I see some inconsistency in net/core/net_namespace.c:
> > __register_pernet_operations when CONFIG_NET_NS is enabled
> > does not call ops_free after failed ops_init while when
> > CONFIG_NET_NS is not enabled ops_free is called. The
> > problem is that we leak the ops->size data allocated for the
> > failed net. I think, the fix should be ops_init to free the data.
>
> Are you sure ?
> In my code it does...
>
> static int __register_pernet_operations(struct list_head *list,
> struct pernet_operations *ops)
> at line 417
> ..
> for_each_net(net) {
> error = ops_init(ops, net);
> if (error)
> goto out_undo;
There is line here that registers current net for
cleanup only after ops_init success:
list_add_tail(&net->exit_list, &net_exit_list);
If ops_init fails for first net then net_exit_list will
be empty.
> ...
> line 426
> out_undo:
> /* If I have an error cleanup all namespaces I initialized */
> list_del(&ops->list);
> ops_exit_list(ops, &net_exit_list);
> ops_free_list(ops, &net_exit_list);
> return error;
> }
Regards
--
Julian Anastasov <ja@xxxxxx>
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