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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] net: Fix IP_MULTICAST_IF
Date: Mon, 19 Oct 2009 21:28:55 -0700 (PDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 20 Oct 2009 06:23:54 +0200

> I wonder if the whole thing could use RCU somehow, since some
> workloads hit this dev_base_lock rwlock pretty hard...

True, but for now we'll put your fix in :-)