From e6fd6d63602658d6c86935b18684ad1d1afc5ede Mon Sep 17 00:00:00 2001
From: Rob Bradford <robert.bradford@intel.com>
Date: Mon, 18 May 2020 09:58:47 +0100
Subject: [PATCH] vhost_user_block: Implement VIRTIO_BLK_F_FLUSH

As the parsing code is reused the flush feature is already implemented
and ready to be used.

Fixes: #1197

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
---
 vhost_user_block/src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/vhost_user_block/src/lib.rs b/vhost_user_block/src/lib.rs
index 4fde1a97d..ba1753301 100644
--- a/vhost_user_block/src/lib.rs
+++ b/vhost_user_block/src/lib.rs
@@ -259,6 +259,7 @@ impl VhostUserBackend for VhostUserBlkBackend {
             | 1 << VIRTIO_BLK_F_CONFIG_WCE
             | 1 << VIRTIO_RING_F_EVENT_IDX
             | 1 << VIRTIO_F_VERSION_1
+            | 1 << VIRTIO_BLK_F_FLUSH
             | VhostUserVirtioFeatures::PROTOCOL_FEATURES.bits();
 
         if self.rdonly {