doc: add Meson coding style to contributors guide

[dpdk.git] / lib / librte_distributor / rte_distributor_single.c

diff --git a/lib/librte_distributor/rte_distributor_single.c b/lib/librte_distributor/rte_distributor_single.c
index abaf773..f4725b1 100644 (file)
--- a/lib/librte_distributor/rte_distributor_single.c
+++ b/lib/librte_distributor/rte_distributor_single.c
@@ -74,6 +74,10 @@ rte_distributor_return_pkt_single(struct rte_distributor_single *d,
        union rte_distributor_buffer_single *buf = &d->bufs[worker_id];
        uint64_t req = (((int64_t)(uintptr_t)oldpkt) << RTE_DISTRIB_FLAG_BITS)
                        | RTE_DISTRIB_RETURN_BUF;
+       while (unlikely(__atomic_load_n(&buf->bufptr64, __ATOMIC_RELAXED)
+                       & RTE_DISTRIB_FLAGS_MASK))
+               rte_pause();
+
        /* Sync with distributor on RETURN_BUF flag. */
        __atomic_store_n(&(buf->bufptr64), req, __ATOMIC_RELEASE);
        return 0;