Eric Dumazet 191cf87219 pkt_sched: fq: use proper locking in fq_dump_stats()
commit 695b4ec0f0a9cf29deabd3ac075911d58b31f42b upstream.

When fq is used on 32bit kernels, we need to lock the qdisc before
copying 64bit fields.

Otherwise "tc -s qdisc ..." might report bogus values.

Fixes: afe4fd062416 ("pkt_sched: fq: Fair Queue packet scheduler")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-10 10:26:21 +02:00
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