Yang Zhong 360980d93c vhost-user-blk: enable write_config for WCE
In vhost-user-blk, only WCE value can be set back to device in
guest kernel like
echo "write through" > /sys/block/vda/cache_type

So write_config() will only set WCE value from guest kernel to
vhost user side.

Signed-off-by: Yang Zhong <yang.zhong@intel.com>
2019-09-20 15:56:51 +02:00
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