From: K. Y. Srinivasan <kys@microsoft.com>
Date: Tue, 10 May 2011 14:54:08 +0000 (-0700)
Subject: Staging: hv: Use the newly introduced I/O drain synch method
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=19fc2f2ae48d98690a55187b62497e83992d60fc;p=deliverable%2Flinux.git

Staging: hv: Use the newly introduced I/O drain synch method

Use the newly introduced I/O drain synch method.

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: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/hv/storvsc.c b/drivers/staging/hv/storvsc.c
index 36458b87f347..8e529d502c6d 100644
--- a/drivers/staging/hv/storvsc.c
+++ b/drivers/staging/hv/storvsc.c
@@ -501,11 +501,8 @@ int storvsc_dev_remove(struct hv_device *device)
 	 * only allow inbound traffic (responses) to proceed so that
 	 * outstanding requests can be completed.
 	 */
-	while (atomic_read(&stor_device->num_outstanding_req)) {
-		DPRINT_INFO(STORVSC, "waiting for %d requests to complete...",
-			    atomic_read(&stor_device->num_outstanding_req));
-		udelay(100);
-	}
+
+	storvsc_wait_to_drain(stor_device);
 
 	DPRINT_INFO(STORVSC, "removing storage device (%p)...",
 		    device->ext);