From: K. Y. Srinivasan <kys@microsoft.com>
Date: Mon, 6 Jun 2011 22:50:03 +0000 (-0700)
Subject: Staging: hv: vmbus: Fix a memory barrier call in vmbus_drv.c
X-Git-Tag: next-20110726~5^2~568^2~43
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e826f1d505d3a6bfc304addc7f83c7afcc31c830;p=karo-tx-linux.git

Staging: hv: vmbus: Fix a memory barrier call in vmbus_drv.c

Use the correct memory barrier call in vmbus_drv.c

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index bc740307b6de..921ca9aa38c6 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -455,7 +455,7 @@ static void vmbus_on_msg_dpc(unsigned long data)
 		 * will not deliver any more messages since there is
 		 * no empty slot
 		 */
-		mb();
+		smp_mb();
 
 		if (msg->header.message_flags.msg_pending) {
 			/*