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(parent: bd4339b) | patch
net: Avoid modulus in skb_tx_hash() for forwarding case.
authorDavid S. Miller <davem@davemloft.net>
Sun, 3 May 2009 21:43:10 +0000 (14:43 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sun, 3 May 2009 21:43:10 +0000 (14:43 -0700)
commiteeabec5b14a82f2f4ba9869424ea645d6fe611b2
tree773f446b9a609e771ff75ebd9bfacd4d3d52f99ftree | snapshot
parentbd4339b0d7e6ae61bf94c1c90ac82cc1abd6ca25commit | diff
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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