diff options
Diffstat (limited to 'include/net/pkt_sched.h')
| -rw-r--r-- | include/net/pkt_sched.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index a16fbe9a2a67..aa99c73c3fbd 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -118,7 +118,12 @@ void __qdisc_run(struct Qdisc *q); static inline void qdisc_run(struct Qdisc *q) { if (qdisc_run_begin(q)) { - __qdisc_run(q); + /* NOLOCK qdisc must check 'state' under the qdisc seqlock + * to avoid racing with dev_qdisc_reset() + */ + if (!(q->flags & TCQ_F_NOLOCK) || + likely(!test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) + __qdisc_run(q); qdisc_run_end(q); } } |