From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932167AbcGAVnY (ORCPT ); Fri, 1 Jul 2016 17:43:24 -0400 Received: from p3plsmtps2ded02.prod.phx3.secureserver.net ([208.109.80.59]:46437 "EHLO p3plsmtps2ded02.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752670AbcGAVnV (ORCPT ); Fri, 1 Jul 2016 17:43:21 -0400 x-originating-ip: 72.167.245.219 From: kys@exchange.microsoft.com To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, vkuznets@redhat.com, jasowang@redhat.com, leann.ogasawara@canonical.com Cc: "K. Y. Srinivasan" Subject: [PATCH 2/3] Drivers: hv: vmbus: Reduce the delay between retries in vmbus_post_msg() Date: Fri, 1 Jul 2016 16:26:36 -0700 Message-Id: <1467415597-7943-2-git-send-email-kys@exchange.microsoft.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1467415597-7943-1-git-send-email-kys@exchange.microsoft.com> References: <1467415517-7898-1-git-send-email-kys@exchange.microsoft.com> <1467415597-7943-1-git-send-email-kys@exchange.microsoft.com> Reply-To: kys@microsoft.com X-CMAE-Envelope: MS4wfJpRnPuBENM/9bDQ0VV/JwnX7J6zS+tL98A771PZ/2cfLmcLjENhiU8sQowcFOW8uZJR5/9k0YqX34g4trxcbIT81oNHa1m8vCTuBhJzaw9MbRh7r4OB QTDSKpGMxKKH/cfznEb/uveuEidP2wNhe2B1VDSZNnBW0uDpi2tujydmp+38ijCpUchXBpV3ygEptLcIh2CAvqR9ZEB1jFjgWgW7meKhR33JOozDx+KQT2Av 5F1wJ+u3/dz/khalWiECA2YHUczWq2MZpT1nAPyBfabo40Qt095RYUKy5GFERgmkKOkQkSxuIf+fpE0aGLJJZjKKk6I9a9JH+AB8tw7egTY1LV0yhxSkDRow t683uOrDg6vWIWfZ+ALKWNUrRRMQdR5DznONNphKp83fBlzcoMMr8B8P+RzaoqEvCNymzzEJbQgSO1/3ouNf+/1t2TGcJp/muUwosSjSWwiV0XHmO0M= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: K. Y. Srinivasan 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 --- drivers/hv/connection.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index fcf8a02..78e6368 100644 --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -439,7 +439,7 @@ 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; @@ -472,9 +472,9 @@ 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; } -- 1.7.4.1