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| author | Jason Wang <jasowang@redhat.com> | 2016-03-04 06:24:52 -0500 |
|---|---|---|
| committer | Alistair Strachan <astrachan@google.com> | 2019-01-15 17:08:33 -0800 |
| commit | 29181c5bfa697b4bf0f80999c16f5906869fbb9b (patch) | |
| tree | 72d262e32e7ee693db75623ed4d08e31dd7f08da /lib/test-string_helpers.c | |
| parent | 2dd59f910bfddc78e7314782b7d060a74abc57c5 (diff) | |
UPSTREAM: 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>
(cherry picked from commit d4a60603fa0b42012decfa058dfa44cffde7a10c)
Bug: 121166534
Test: Ran cuttlefish with android-4.4 + VSOCKETS, VMWARE_VMCI_VSOCKETS
Signed-off-by: Alistair Strachan <astrachan@google.com>
Change-Id: I1d4e972543470530a5bc37e19f4199b1f345e042
Diffstat (limited to 'lib/test-string_helpers.c')
0 files changed, 0 insertions, 0 deletions