Hi Minoru,
I hate to do this to you after i made suggestions on how to
make the changes.... (as an adult i hate it when people do it to
me;->)
But sometimes code helps. So what i meant is the attached patch.
I havent even compiled it yet.
If it works, please submit it and add yourself as the author
(and a signed-off from me). Then we can revisit the init()
issue in cls_group..
You should also cc tgraf in your cls_grp config questions.
cheers,
jamal
On Fri, 2009-05-29 at 09:46 -0400, jamal wrote:
>
> This is incorrect. tp may already exist and you dont want to destroy
> for failure to change its parameters. You also dont want to reattach
> an existing tp because it succeeded in parameter change.
> So the soln is to check if this is a new tp and then do what you did
> above...
> Did that make sense?
>
> cheers,
> jamal
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 0759f32..8760a48 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -266,11 +266,6 @@ replay:
goto errout;
}
- spin_lock_bh(root_lock);
- tp->next = *back;
- *back = tp;
- spin_unlock_bh(root_lock);
-
} else if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], tp->ops->kind))
goto errout;
@@ -314,8 +309,21 @@ replay:
}
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)) {
+ spin_lock_bh(root_lock);
+ tp->next = *back;
+ *back = tp;
+ spin_unlock_bh(root_lock);
+ }
tfilter_notify(skb, n, tp, fh, RTM_NEWTFILTER);
+ } else {
+ if (n->nlmsg_type == RTM_NEWTFILTER &&
+ (n->nlmsg_flags&NLM_F_CREATE)) {
+ tcf_destroy(tp);
+ }
+ }
errout:
if (cl)
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