From: Long Li <lon...@microsoft.com>
rte_smp_mb() uses the same locked ADD as the in-kernel vmbus driver,
and it has slightly performance improvement over rte_mb().
Signed-off-by: Long Li <lon...@microsoft.com>
---
drivers/bus/vmbus/vmbus_channel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/bus/vmbus/vmbus_channel.c
b/drivers/bus/vmbus/vmbus_channel.c
index aaa801d88..c60470332 100644
--- a/drivers/bus/vmbus/vmbus_channel.c
+++ b/drivers/bus/vmbus/vmbus_channel.c
@@ -214,7 +214,7 @@ void rte_vmbus_chan_signal_read(struct vmbus_channel *chan,
uint32_t bytes_read)
return;
/* Make sure reading of pending happens after new read index */
- rte_mb();
+ rte_smp_mb();
pending_sz = rbr->vbr->pending_send;
if (!pending_sz)
--
2.25.1
