From patchwork Mon Apr 10 17:44:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sumit Semwal X-Patchwork-Id: 97205 Delivered-To: patch@linaro.org Received: by 10.182.246.10 with SMTP id xs10csp1456513obc; Mon, 10 Apr 2017 10:45:58 -0700 (PDT) X-Received: by 10.99.125.12 with SMTP id y12mr7328125pgc.146.1491846358453; Mon, 10 Apr 2017 10:45:58 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w21si14197944pgh.90.2017.04.10.10.45.58; Mon, 10 Apr 2017 10:45:58 -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 S1753101AbdDJRpo (ORCPT + 5 others); Mon, 10 Apr 2017 13:45:44 -0400 Received: from mail-pf0-f176.google.com ([209.85.192.176]:34110 "EHLO mail-pf0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752498AbdDJRpn (ORCPT ); Mon, 10 Apr 2017 13:45:43 -0400 Received: by mail-pf0-f176.google.com with SMTP id c198so25508793pfc.1 for ; Mon, 10 Apr 2017 10:45:43 -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=eKbq1yzrEMZclm0rFKGtqJCiIlYibuy+3+O+7YPN9jNAejRXZdISFmRuNso5QmDs8H ET13kSzVFtN4Ep162b53I+r3fhiVYo73skMrUzPAqJjUXOcKBXJF/w7p6TZcf8b5lEEg 2SRiyx/36D18QLu8vt/l5a24roh936ce44Tc8= 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=ulvYIPg4rXUYAG5svJSpHc8ZQKaQOIV5g3ReIsp90smO4WFwYnAF3spNXYa0N/ck8n NaZjODTNCR6rf/3ioqGZnZVTafZoPivE/0EUKQPwLQARYe3hxjP2Nvy/0ol/YOOaP41x sd2G0C20KLUYSuR/m9nXQ3AO0lUzPiC2FvQucAqNgpuXWubcyqntu2/H4SLSFacghpZJ toQ7duFvidR4bFeax4hA3w2I0AIFHGxLmpL4dgSBIOdcVAyd4jx7scEW/04uPLYUCcgB OM5Z4FM2Ee0opeHOFMauXX2yrSDD25ffOzkrwGhkmD7vqpvdhfVj7zOPqFvP+dHe2Fra ydAw== X-Gm-Message-State: AFeK/H0Tfu0av9s6uAWfldwaFW7S+DmrcpLS37u81ihzqJ8BsCzhMw3SfFKGzHSDp/1uEBuw X-Received: by 10.98.66.88 with SMTP id p85mr56601703pfa.146.1491846337501; Mon, 10 Apr 2017 10:45:37 -0700 (PDT) Received: from phantom.lan ([106.51.225.38]) by smtp.gmail.com with ESMTPSA id y6sm768833pfa.83.2017.04.10.10.45.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 10 Apr 2017 10:45:36 -0700 (PDT) From: Sumit Semwal To: stable@vger.kernel.org Cc: "K. Y. Srinivasan" , Greg Kroah-Hartman , Sumit Semwal Subject: [PATCH for-4.4 10/16] Drivers: hv: vmbus: Reduce the delay between retries in vmbus_post_msg() Date: Mon, 10 Apr 2017 23:14:26 +0530 Message-Id: <1491846272-14882-11-git-send-email-sumit.semwal@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1491846272-14882-1-git-send-email-sumit.semwal@linaro.org> References: <1491846272-14882-1-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; }