From: Florin Coras <fcoras@cisco.com>
Date: Mon, 5 Jun 2023 17:24:56 +0000 (-0700)
Subject: vcl: avoid duplicate tx events with epoll lt
X-Git-Tag: v24.02-rc0~190
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=acecd0d9c225d5f87f2a518854c7eb7af319ef96;p=vpp.git

vcl: avoid duplicate tx events with epoll lt

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ic6436426ead561e47fb77ed9a95afbd85f2998ae
---

diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 9e7af0a3a50..474670e7565 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -3058,7 +3058,8 @@ vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
       svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ? s->ct_tx_fifo :
 								s->tx_fifo);
       session_events = s->vep.ev.events;
-      if (!(EPOLLOUT & session_events))
+      if (!(EPOLLOUT & session_events) ||
+	  (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
 	break;
       add_event = 1;
       events[*num_ev].events = EPOLLOUT;