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| author | David S. Miller <davem@davemloft.net> | 2019-09-17 23:51:10 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-17 23:51:10 +0200 |
| commit | 1bab8d4c488be22d57f9dd09968c90a0ddc413bf (patch) | |
| tree | 81318cd13170a3b6b72489f63e92adb0eaf49693 /include/net/pkt_sched.h | |
| parent | 990925fad5c227269c3fcb76c7c46811b1e86c73 (diff) | |
| parent | 00b368502d18f790ab715e055869fd4bb7484a9b (diff) | |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
Pull in bug fixes from 'net' tree for the merge window.
Signed-off-by: David S. Miller <davem@davemloft.net>
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 d1632979622e..6a70845bd9ab 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); } } |