summaryrefslogtreecommitdiff
path: root/include/net/pkt_sched.h
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2019-09-18 00:51:10 +0300
committerDavid S. Miller <davem@davemloft.net>2019-09-18 00:51:10 +0300
commit1bab8d4c488be22d57f9dd09968c90a0ddc413bf (patch)
tree81318cd13170a3b6b72489f63e92adb0eaf49693 /include/net/pkt_sched.h
parent990925fad5c227269c3fcb76c7c46811b1e86c73 (diff)
parent00b368502d18f790ab715e055869fd4bb7484a9b (diff)
downloadlinux-1bab8d4c488be22d57f9dd09968c90a0ddc413bf.tar.xz
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.h7
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);
}
}