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can: Propagate SO_PRIORITY of raw sockets to skbs

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This allows controlling certain queueing disciplines by setting the
socket's SO_PRIORITY option.

For example, with the default pfifo_fast queueing discipline, which
provides three priorities, socket priority TC_PRIO_CONTROL means
higher than default and TC_PRIO_BULK means lower than default.

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Rostislav Lisovy 2014-01-24 13:17:37 +01:00 committed by Marc Kleine-Budde
parent 0e4b949e66
commit bb5ecb0c63
1 changed files with 1 additions and 0 deletions
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net/can/raw.c
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@ -715,6 +715,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
skb->dev = dev;
skb->sk = sk;
skb->priority = sk->sk_priority;
err = can_send(skb, ro->loopback);