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SubjectRe: Long delays creating a netns after deleting one (possibly RCU related)
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On Mon, 2016-11-14 at 16:12 -0600, Eric W. Biederman wrote:

> synchronize_rcu_expidited is not enough if you have multiple network
> devices in play.
>
> Looking at the code it comes down to this commit, and it appears there
> is a promise add rcu grace period combining by Eric Dumazet.
>
> Eric since people are hitting noticable stalls because of the rcu grace
> period taking a long time do you think you could look at this code path
> a bit more?
>
> commit 93d05d4a320cb16712bb3d57a9658f395d8cecb9
> Author: Eric Dumazet <edumazet@google.com>
> Date: Wed Nov 18 06:31:03 2015 -0800

Absolutely, I will take a loop asap.

Thanks Eric.


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