netdev - Re: [PATCH] net: Adjust softirq raising in __napi

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Date:	Wed, 21 Oct 2009 23:37:24 +0200
From:	Tilman Schmidt <tilman@...p.cc>
To:	Johannes Berg <johannes@...solutions.net>
CC:	Jarek Poplawski <jarkao2@...il.com>,
	David Miller <davem@...emloft.net>, hidave.darkstar@...il.com,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	linux-wireless@...r.kernel.org, linux-ppp@...r.kernel.org,
	netdev@...r.kernel.org, paulus@...ba.org,
	Michael Buesch <mb@...sch.de>,
	Oliver Hartkopp <oliver@...tkopp.net>
Subject: Re: [PATCH] net: Adjust softirq raising in __napi_schedule

Johannes Berg schrieb:

> This still doesn't make any sense.
> 
> There may or may not be a lot of code that assumes that everything else
> is run with other tasklets disabled, and that it cannot be interrupted
> by a tasklet and thus create a race.
> 
> Can you prove that is not the case, across the entire networking layer?

So what's the solution you propose?

-- 
Tilman Schmidt                    E-Mail: tilman@...p.cc
Bonn, Germany
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