On Sat, 2009-05-30 at 13:45 +0200, Jarek Poplawski wrote:
> > > > }
> > > >
> > > > err = tp->ops->change(tp, cl, t->tcm_handle, tca, &fh);
> > > > - if (err == 0)
> > > > + if (err == 0) {
> > > > + if (n->nlmsg_type == RTM_NEWTFILTER &&
> > > > + (n->nlmsg_flags&NLM_F_CREATE)) {
>
> Since "tc filter replace" uses this type and flag too without creating
> tp, this check is not enough. I guess we could simply use a variable
> like tp_created etc.
It will be superfluos.
tp_created is the check
n->nlmsg_type == RTM_NEWTFILTER && n->nlmsg_flags&NLM_F_CREATE
replace will be
n->nlmsg_type == RTM_NEWTFILTER && n->nlmsg_flags & NLM_F_EXCL
> Anyway, changing this place looks tricky to me,
> so maybe it would be safer to do a separate cls_cgroup fix just for
> -stable, and this one patch for -next only?
I think they are two separate issues.
The fact that we dont destroy an allocated tp on failure is an issue
regardless of what cls_group does. In the case of Minoru's issue
it is because he is misconfiguring cls_group.
cheers,
jamal
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