netdev: Add netdev->select_queue() method.

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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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David S. Miller 2008-07-15 03:03:33 -07:00

parent e3c50d5d25

commit eae792b722

2 changed files with 9 additions and 3 deletions

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9

net/core/dev.c

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