lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

pkt_sched: Fix tx queue selection in tc_modify_qdisc

Browse Source 
After the recent mq change there is the new select_queue qdisc class
method used in tc_modify_qdisc, but it works OK only for direct child
qdiscs of mq qdisc. Grandchildren always get the first tx queue, which
would give wrong qdisc_root etc. results (e.g. for sch_htb as child of
sch_prio). This patch fixes it by using parent's dev_queue for such
grandchildren qdiscs. The select_queue method's return type is changed
BTW.

With feedback from: Patrick McHardy <kaber@trash.net>

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarek Poplawski
2009-09-15 02:53:07 -07:00
committed by David S. Miller
parent ca519274d5
commit 926e61b7c4
3 changed files with 17 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/net/sch_generic.h
View File

@@ -81,7 +81,7 @@ struct Qdisc
struct Qdisc_class_ops
{
/* Child qdisc manipulation */
unsigned int (*select_queue)(struct Qdisc *, struct tcmsg *);
struct netdev_queue * (*select_queue)(struct Qdisc *, struct tcmsg *);
int (*graft)(struct Qdisc *, unsigned long cl,
struct Qdisc *, struct Qdisc **);
struct Qdisc * (*leaf)(struct Qdisc *, unsigned long cl);