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-rw-r--r--include/net/sch_generic.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 1ee396ce0eda..e8034756cbf8 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -1334,4 +1334,11 @@ static inline void skb_tc_reinsert(struct sk_buff *skb, struct tcf_result *res)
qstats_overlimit_inc(res->qstats);
}
+/* Make sure qdisc is no longer in SCHED state. */
+static inline void qdisc_synchronize(const struct Qdisc *q)
+{
+ while (test_bit(__QDISC_STATE_SCHED, &q->state))
+ msleep(1);
+}
+
#endif