From: David S. Miller <davem@davemloft.net>
Date: Thu, 31 Jul 2008 23:58:50 +0000 (-0700)
Subject: netdev: Fix lockdep warnings in multiqueue configurations.
X-Git-Tag: v2.6.27-rc2~102^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c3f26a269c2421f97f10cf8ed05d5099b573af4d;p=pandora-kernel.git

netdev: Fix lockdep warnings in multiqueue configurations.

When support for multiple TX queues were added, the
netif_tx_lock() routines we converted to iterate over
all TX queues and grab each queue's spinlock.

This causes heartburn for lockdep and it's not a healthy
thing to do with lots of TX queues anyways.

So modify this to use a top-level lock and a "frozen"
state for the individual TX queues.

Signed-off-by: David S. Miller <davem@davemloft.net>
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