-----Original Message-----
From: Eugenio Pérez <eperezma@redhat.com>
Sent: Monday, August 31, 2020 3:59 PM
To: dev@dpdk.org
Cc: Adrian Moreno Zapata <redacted>; Xia, Chenbo
[off-list ref]; Wang, Zhihong [off-list ref]; Jens
Freimann [off-list ref]; stable@dpdk.org; Maxime Coquelin
[off-list ref]; Kevin Traynor [off-list ref]
Subject: [PATCH v2 1/1] vhost: fix iotlb mempool single-consumer flag

Bugzilla bug: 523

Control thread (which handles iotlb msg) and forwarding
thread both use iotlb to translate address. The former may modify the
same entry of mempool and may cause a loop in iotlb_pending_entries
list.

Fixes: d012d1f293f4 ("vhost: add IOTLB helper functions")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
 lib/librte_vhost/iotlb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/librte_vhost/iotlb.c b/lib/librte_vhost/iotlb.c
index 5b3a0c090..e0b67721b 100644
--- a/lib/librte_vhost/iotlb.c
+++ b/lib/librte_vhost/iotlb.c

@@ -321,8 +321,7 @@ vhost_user_iotlb_init(struct virtio_net *dev, int

vq_index)
 			IOTLB_CACHE_SIZE, sizeof(struct vhost_iotlb_entry), 0,
 			0, 0, NULL, NULL, NULL, socket,
 			MEMPOOL_F_NO_CACHE_ALIGN |
-			MEMPOOL_F_SP_PUT |
-			MEMPOOL_F_SC_GET);
+			MEMPOOL_F_SP_PUT);
 	if (!vq->iotlb_pool) {
 		VHOST_LOG_CONFIG(ERR,
 				"Failed to create IOTLB cache pool (%s)\n",
--
2.18.1