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authorEric Dumazet <edumazet@google.com>2013-12-05 11:12:02 -0800
committerDavid S. Miller <davem@davemloft.net>2013-12-09 19:54:47 -0500
commit95dc19299f741c986227ec33e23cbf9b3321f812 (patch)
tree603380aee1a70b573c604abded1190d4203a8ca8 /net/sched/sch_mqprio.c
parentfbec3706380726e0959fe50e748dd6cda5697f56 (diff)
downloadop-kernel-dev-95dc19299f741c986227ec33e23cbf9b3321f812.zip
op-kernel-dev-95dc19299f741c986227ec33e23cbf9b3321f812.tar.gz
pkt_sched: give visibility to mq slave qdiscs
Commit 6da7c8fcbcbd ("qdisc: allow setting default queuing discipline") added the ability to change default qdisc from pfifo_fast to say fq But as most modern ethernet devices are multiqueue, we cant really see all the statistics from "tc -s qdisc show", as the default root qdisc is mq. This patch adds the calls to qdisc_list_add() to mq and mqprio Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_mqprio.c')
-rw-r--r--net/sched/sch_mqprio.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index d44c868..6749e2f 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -167,15 +167,17 @@ static void mqprio_attach(struct Qdisc *sch)
{
struct net_device *dev = qdisc_dev(sch);
struct mqprio_sched *priv = qdisc_priv(sch);
- struct Qdisc *qdisc;
+ struct Qdisc *qdisc, *old;
unsigned int ntx;
/* Attach underlying qdisc */
for (ntx = 0; ntx < dev->num_tx_queues; ntx++) {
qdisc = priv->qdiscs[ntx];
- qdisc = dev_graft_qdisc(qdisc->dev_queue, qdisc);
- if (qdisc)
- qdisc_destroy(qdisc);
+ old = dev_graft_qdisc(qdisc->dev_queue, qdisc);
+ if (old)
+ qdisc_destroy(old);
+ if (ntx < dev->real_num_tx_queues)
+ qdisc_list_add(qdisc);
}
kfree(priv->qdiscs);
priv->qdiscs = NULL;
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