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Re: [PATCH] (6/6) bridge: receive path optimization

To: shemminger@xxxxxxxx
Subject: Re: [PATCH] (6/6) bridge: receive path optimization
From: "David S. Miller" <davem@xxxxxxxxxxxxx>
Date: Thu, 26 May 2005 14:46:38 -0700 (PDT)
Cc: bridge@xxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <20050526110425.27590eb8@xxxxxxxxxxxxxxxxx>
References: <20050526110425.27590eb8@xxxxxxxxxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx
From: Stephen Hemminger <shemminger@xxxxxxxx>
Date: Thu, 26 May 2005 11:04:25 -0700

> This improves the bridge local receive path by avoiding going
> through another softirq.  The bridge receive path is already being called 
> from a netif_receive_skb() there is no point in going through another
> receiveq round trip. 
> Recursion is limited because bridge can never be a port of a bridge
> so handle_bridge() always returns.

I applied all 6 patches, but this one in particular I'd like
to comment on.

Remember all of those bridge netfilter stack usage issues
we have a few months ago?  This could edge us back into
those problems again.

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