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[for-4.4,10/16] Drivers: hv: vmbus: Reduce the delay between retries in vmbus_post_msg()

Message ID 1491846272-14882-11-git-send-email-sumit.semwal@linaro.org
State Superseded
Headers show
Series Stable commits from Ubuntu Xenial 4.4-lts | expand

Commit Message

Sumit Semwal April 10, 2017, 5:44 p.m. UTC 
From: "K. Y. Srinivasan" <kys@microsoft.com>


[ Upstream commit 8de0d7e951826d7592e0ba1da655b175c4aa0923 ]

The current delay between retries is unnecessarily high and is negatively
affecting the time it takes to boot the system.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>

---
 drivers/hv/connection.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

-- 
2.7.4
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Patch

diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 4fc2e88..2bbc530 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -429,7 +429,7 @@  int vmbus_post_msg(void *buffer, size_t buflen)
 	union hv_connection_id conn_id;
 	int ret = 0;
 	int retries = 0;
-	u32 msec = 1;
+	u32 usec = 1;
 
 	conn_id.asu32 = 0;
 	conn_id.u.id = VMBUS_MESSAGE_CONNECTION_ID;
@@ -462,9 +462,9 @@  int vmbus_post_msg(void *buffer, size_t buflen)
 		}
 
 		retries++;
-		msleep(msec);
-		if (msec < 2048)
-			msec *= 2;
+		udelay(usec);
+		if (usec < 2048)
+			usec *= 2;
 	}
 	return ret;
 }