| commit | d4a60603fa0b42012decfa058dfa44cffde7a10c | [log] [tgz] |
|---|---|---|
| author | Jason Wang <jasowang@redhat.com> | Fri Mar 04 06:24:52 2016 -0500 |
| committer | Michael S. Tsirkin <mst@redhat.com> | Fri Mar 11 02:18:50 2016 +0200 |
| tree | e67544642fc442b1c3823a4cef4a744cc8e81bf1 | |
| parent | 526d3e7ff515582eaf7cf5d9da2a11bf681204e6 [diff] |
vhost: introduce vhost_vq_avail_empty() This patch introduces a helper which will return true if we're sure that the available ring is empty for a specific vq. When we're not sure, e.g vq access failure, return false instead. This could be used for busy polling code to exit the busy loop. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>