From patchwork Wed Apr 12 17:43:44 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sumit Semwal X-Patchwork-Id: 97332 Delivered-To: patch@linaro.org Received: by 10.140.109.52 with SMTP id k49csp374422qgf; Wed, 12 Apr 2017 10:44:42 -0700 (PDT) X-Received: by 10.84.214.129 with SMTP id j1mr83630462pli.23.1492019082788; Wed, 12 Apr 2017 10:44:42 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id l17si21057414pgj.292.2017.04.12.10.44.42; Wed, 12 Apr 2017 10:44:42 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org; spf=pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755318AbdDLRog (ORCPT + 6 others); Wed, 12 Apr 2017 13:44:36 -0400 Received: from mail-pf0-f180.google.com ([209.85.192.180]:35564 "EHLO mail-pf0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755093AbdDLRob (ORCPT ); Wed, 12 Apr 2017 13:44:31 -0400 Received: by mail-pf0-f180.google.com with SMTP id i5so16975240pfc.2 for ; Wed, 12 Apr 2017 10:44:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=nvuryFGNPGCQ0OvrpADpfSou8jt4E6kEASBeHvbi9dE=; b=ecevXUrTs0+OAol46QFEAxLgaEOGJhsT0NI/LgboWgfT2Gsf/thfvmQpZdxop9TiCR SRMF7I+kFaymR9kHHTFNbLu1+5/Qw0KLWFeDgu8lcGMP9YcxsBnYpSGYfN09xUau5QJi AtAyLUC2J9Hj8l4MS4fziLe7JnA5EbOkt/wUU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=nvuryFGNPGCQ0OvrpADpfSou8jt4E6kEASBeHvbi9dE=; b=Ex7XNisex/nmn9s7VdcoRqZM38xpSEzroZjamrCTIGG6uOZMVHIiiuX/3v8Kh03/xX iAebLbHXDOH/hVIJWVEzogQSXSXmzdWYXF4lEjqYj7sv4n5h6xNIYZf7RyjVjhoGqh22 kI9oZlWhWjasRYFWM0SbgHP8ua5wk8kZn3PGGjlwzeLJwj2+IdsT0Fjp+tMUBGz1W1+Z jedix8Y74OvMnPGQ5wtdPaeflAR5LQvNCZjQQ1sp2vFtUo7fvK6Ba6hywT7nTjlVeESe ZyZnXZYxYJssCSbx7tfSaFbE4rx4im8TJ/HjCI0Rruae8R4qizO+BVpIWW6fNXT+zRgf 6/9Q== X-Gm-Message-State: AFeK/H2VHpkWUP2rHf9wBrcCZls8c2j+2EmetzDmWBxP9/tSAlHsYURE7yWu9evW4jV42anv X-Received: by 10.84.179.99 with SMTP id a90mr82740781plc.26.1492019070325; Wed, 12 Apr 2017 10:44:30 -0700 (PDT) Received: from phantom.lan ([106.51.225.38]) by smtp.gmail.com with ESMTPSA id r17sm37750019pfa.13.2017.04.12.10.44.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 12 Apr 2017 10:44:29 -0700 (PDT) From: Sumit Semwal To: stable@vger.kernel.org Cc: "K. Y. Srinivasan" , Greg Kroah-Hartman , Sumit Semwal Subject: [v2 PATCH for-4.4 10/16] Drivers: hv: vmbus: Reduce the delay between retries in vmbus_post_msg() Date: Wed, 12 Apr 2017 23:13:44 +0530 Message-Id: <1492019030-13567-11-git-send-email-sumit.semwal@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1492019030-13567-1-git-send-email-sumit.semwal@linaro.org> References: <1492019030-13567-1-git-send-email-sumit.semwal@linaro.org> Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: "K. Y. Srinivasan" [ 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 Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sumit Semwal --- drivers/hv/connection.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) -- 2.7.4 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; }