netdev - Re: [IPV4] ROUTE: Avoid sparse warnings

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Message-ID: <47828FB5.1030303@cosmosbay.com>
Date:	Mon, 07 Jan 2008 21:46:45 +0100
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
CC:	davem@...emloft.net, netdev@...r.kernel.org,
	viro@...IV.linux.org.uk
Subject: Re: [IPV4] ROUTE: Avoid sparse warnings

Herbert Xu a écrit :
> On Mon, Jan 07, 2008 at 02:56:24PM +0100, Eric Dumazet wrote:
>> AFAIK, this patch reduces complexity and text size.
> 
> But if we had loads of empty hash buckets couldn't this potentially
> increase latency by disabling BH longer than before?

Well, we call rcu_read_unlock_bh()/rcu_read_lock_bh() for each bucket, empty 
or not, before and after patch, so we dont change latency.



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