From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 2 Nov 2009 09:43:32 +0000 (+0100)
Subject: packet: less dev_put() calls
X-Git-Tag: v2.6.33-rc1~388^2~561
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=654d1f8a019dfa06df8355248e1ce222f303b88d;p=pandora-kernel.git

packet: less dev_put() calls

- packet_sendmsg_spkt() can use dev_get_by_name_rcu() to avoid touching device refcount.

- packet_getname_spkt() & packet_getname() can use dev_get_by_index_rcu() to
  avoid touching device refcount too.

tpacket_snd() & packet_snd() can not use RCU yet because they can sleep when
allocating skb.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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