linux-kernel - [PATCH 022/206] Staging: hv: Use the newly introduced I/O drain synch method

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Date:	Mon,  9 May 2011 14:55:04 -0700
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	gregkh@...e.de, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, virtualization@...ts.osdl.org
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Abhishek Kane <v-abkane@...rosoft.com>,
	Hank Janssen <hjanssen@...rosoft.com>
Subject: [PATCH 022/206] 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@...rosoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
Signed-off-by: Abhishek Kane <v-abkane@...rosoft.com>
Signed-off-by: Hank Janssen <hjanssen@...rosoft.com>
---
 drivers/staging/hv/storvsc.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/hv/storvsc.c b/drivers/staging/hv/storvsc.c
index 36458b8..8e529d5 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);
-- 
1.7.4.1

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