On Wed, 2010-12-15 at 00:43 +0100, Julian Anastasov wrote:
> Hello,
>
> On Mon, 13 Dec 2010, Hans Schillstrom wrote:
[snip]
> v2 PATCH 13/22 - ip_vs_est
> - estimation_timer: what protection is needed for for_each_net?
> It is rtnl for user context and RCU for softirq?
> May be est_timer must be per NS? Now may be rcu_read_lock is
> needed before for_each_net_rcu ? for_each_net can be called
> only under rtnl_lock?
>
[snip]
In case of a common timer for all ns:
rcu_read_lock();
for_each_net_rcu(net) {
...
}
rcu_read_unlock();
I guess it's better with a timer per netns ?
(then for_each_net() is not needed, and the locking can remain the same
as before the netns change.)
Regards
Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx>
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