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[2/3] can: Propagate SO_PRIORITY of raw sockets to skbs

Message ID 1391029863-23099-3-git-send-email-mkl@pengutronix.de
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Marc Kleine-Budde Jan. 29, 2014, 9:11 p.m. UTC 
From: Rostislav Lisovy <lisovy@gmail.com>

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>
---
 net/can/raw.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/net/can/raw.c b/net/can/raw.c
index 07d72d8..8be757c 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -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);