[PATCH 4.4 11/28] Drivers: hv: vmbus: Reduce the delay between retries in vmbus_post_msg()

[Greg Kroah-Hartman]

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: K. Y. Srinivasan <k...@microsoft.com>

commit 8de0d7e951826d7592e0ba1da655b175c4aa0923 upstream.

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 <k...@microsoft.com>
Signed-off-by: Sumit Semwal <sumit.sem...@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

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

--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -429,7 +429,7 @@ int vmbus_post_msg(void *buffer, size_t
        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
                }
 
                retries++;
-               msleep(msec);
-               if (msec < 2048)
-                       msec *= 2;
+               udelay(usec);
+               if (usec < 2048)
+                       usec *= 2;
        }
        return ret;
 }