netdev - Re: [PATCH net-next v2 1/2] inetpeer: add namespace support for inetpeer

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Date:	Tue, 05 Jun 2012 14:18:14 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Steffen Klassert <steffen.klassert@...unet.com>
Cc:	Gao feng <gaofeng@...fujitsu.com>, serge.hallyn@...onical.com,
	ebiederm@...ssion.com, herbert@...dor.apana.org.au,
	davem@...emloft.net, netdev@...r.kernel.org,
	containers@...ts.linux-foundation.org
Subject: Re: [PATCH net-next v2 1/2] inetpeer: add namespace support for
 inetpeer

On Tue, 2012-06-05 at 14:15 +0200, Steffen Klassert wrote:

> Lookups are done under rcu, yes. But a lookup will not find
> these stale entries because the whole interpeer tree is removed
> from the inetpeer base before the worker is scheduled. A lookup
> would have to cerate a new inetpeer entry in this case.
> 


Thats simply not true. You don't respect basic RCU rules.

Please read them.



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