From: David S. Miller <davem@davemloft.net>
Date: Tue, 15 Jul 2008 10:03:33 +0000 (-0700)
Subject: netdev: Add netdev->select_queue() method.
X-Git-Tag: v2.6.27-rc1~969^2~74
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eae792b722fef08dcf3aee88266ee7def9710757;p=pandora-kernel.git

netdev: Add netdev->select_queue() method.

Devices or device layers can set this to control the queue selection
performed by dev_pick_tx().

This function runs under RCU protection, which allows overriding
functions to have some way of synchronizing with things like dynamic
->real_num_tx_queues adjustments.

This makes the spinlock prefetch in dev_queue_xmit() a little bit
less effective, but that's the price right now for correctness.

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