Message ID | 1450201392.8474.37.camel@edumazet-glaptop2.roam.corp.google.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
From: Eric Dumazet <eric.dumazet@gmail.com> Date: Tue, 15 Dec 2015 09:43:12 -0800 > From: Eric Dumazet <edumazet@google.com> > > Stas Nichiporovich reported a regression in his HFSC qdisc setup > on a non multi queue device. > > It turns out I mistakenly added a TCQ_F_NOPARENT flag on all qdisc > allocated in qdisc_create() for non multi queue devices, which was > rather buggy. I was clearly mislead by the TCQ_F_ONETXQUEUE that is > also set here for no good reason, since it only matters for the root > qdisc. > > Fixes: 4eaf3b84f288 ("net_sched: fix qdisc_tree_decrease_qlen() races") > Reported-by: Stas Nichiporovich <stasn77@gmail.com> > Tested-by: Stas Nichiporovich <stasn77@gmail.com> > Signed-off-by: Eric Dumazet <edumazet@google.com> Applied and queued up for -stable. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 7ec667dd4ce1..b5c2cf2aa6d4 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -950,7 +950,7 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue, } lockdep_set_class(qdisc_lock(sch), &qdisc_tx_lock); if (!netif_is_multiqueue(dev)) - sch->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT; + sch->flags |= TCQ_F_ONETXQUEUE; } sch->handle = handle;