From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752483AbdFAQg5 (ORCPT ); Thu, 1 Jun 2017 12:36:57 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:33170 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751906AbdFAPok (ORCPT ); Thu, 1 Jun 2017 11:44:40 -0400 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "K. Y. Srinivasan" , "Greg Kroah-Hartman" Date: Thu, 01 Jun 2017 16:43:15 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 022/212] Drivers: hv: vmbus: Reduce the delay between retries in vmbus_post_msg() In-Reply-To: X-SA-Exim-Connect-IP: 82.70.136.246 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.44-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: "K. Y. Srinivasan" 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 Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ben Hutchings --- drivers/hv/connection.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -418,7 +418,7 @@ 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; @@ -451,9 +451,9 @@ 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; }