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Date:	25 May 2007 08:53:12 +0200
From:	Andi Kleen <>
To:	Kieran Mansley <>
Cc:	Stephen Hemminger <>,,,,
Subject: Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin modules

Kieran Mansley <> writes:

> RCU on its own wouldn't
> prevent the accelerated plugin being unloaded while netfront was using
> one of the hooks. 

Note that module unload does always does a stop_machine() which is much 
stronger than normal RCU. As long as you don't sleep and cannot be preemptable
it should be always safe.

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