packet: less dev_put() calls

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- 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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Eric Dumazet 2009-11-02 10:43:32 +01:00 • committed by David S. Miller

parent 1178f66eae

commit 654d1f8a01

1 changed files with 12 additions and 10 deletions

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net/packet/af_packet.c

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