[dpdk-stable] patch 'vhost: fix missing increment of log cache count' has been queued to stable release 18.05.1

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 18.05.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/01/18. So please
shout if anyone has objections.

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From 48e12a9e0659f50147166f5645f29a1559820f9d Mon Sep 17 00:00:00 2001
From: Maxime Coquelin <maxime.coquelin at redhat.com>
Date: Fri, 15 Jun 2018 15:48:46 +0200
Subject: [PATCH] vhost: fix missing increment of log cache count

[ upstream commit e11411b52ae1e778fecaf0b896ff1f6aa4da7c99 ]

The log_cache_nb_elem was never incremented, resulting
in all dirty pages to be missed during live migration.

Fixes: c16915b87109 ("vhost: improve dirty pages logging performance")

Reported-by: Peng He <xnhp0320 at icloud.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
Acked-by: Ilya Maximets <i.maximets at samsung.com>
Reviewed-by: Tiwei Bie <tiwei.bie at intel.com>
---
 lib/librte_vhost/vhost.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 58c425a5c..edddd0f53 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -428,6 +428,7 @@ vhost_log_cache_page(struct virtio_net *dev, struct vhost_virtqueue *vq,
 
 	vq->log_cache[i].offset = offset;
 	vq->log_cache[i].val = (1UL << bit_nr);
+	vq->log_cache_nb_elem++;
 }
 
 static __rte_always_inline void
-- 
2.17.1