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authorEric Dumazet <edumazet@google.com>2015-12-15 09:43:12 -0800
committerDavid S. Miller <davem@davemloft.net>2015-12-15 13:41:52 -0500
commit225734de70cd0a9e0b978f3583a4a87939271d5e (patch)
tree6b40737db8493f7887bd6fdc439e91150d040fdf /net/sched/sch_api.c
parentMerge branch 'ser_gigaset-platform-device-dealloc' (diff)
downloadlinux-dev-225734de70cd0a9e0b978f3583a4a87939271d5e.tar.xz
linux-dev-225734de70cd0a9e0b978f3583a4a87939271d5e.zip
net_sched: make qdisc_tree_decrease_qlen() work for non mq
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> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/sched/sch_api.c2
1 files changed, 1 insertions, 1 deletions
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;