From: David S. Miller <davem@davemloft.net>
Date: Sun, 3 May 2009 21:43:10 +0000 (-0700)
Subject: net: Avoid modulus in skb_tx_hash() for forwarding case.
X-Git-Tag: v2.6.31-rc1~330^2~489
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=513de11bba246b7a67df4c314d9fc936b6a75d0e;p=pandora-kernel.git

net: Avoid modulus in skb_tx_hash() for forwarding case.

Based almost entirely upon a patch by Eric Dumazet.

The common case is to have num-tx-queues <= num_rx_queues
and even if num_tx_queues is larger it will not be significantly
larger.

Therefore, a subtraction loop is always going to be faster than
modulus.

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