From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin modules
Date: 25 May 2007 08:53:12 +0200
Message-ID: <p73k5uxcs2v.fsf@bingen.suse.de>
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Cc: Stephen Hemminger <shemminger@linux-foundation.org>,
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	muli@il.ibm.com, herbert@gondor.apana.org.au
To: Kieran Mansley <kmansley@solarflare.com>
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Kieran Mansley <kmansley@solarflare.com> 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.

-Andi