From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758667Ab2LIQGm (ORCPT ); Sun, 9 Dec 2012 11:06:42 -0500 Received: from mga09.intel.com ([134.134.136.24]:6016 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755729Ab2LIQGm (ORCPT ); Sun, 9 Dec 2012 11:06:42 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,246,1355126400"; d="scan'208";a="231334442" Message-ID: <50C4B5D7.4030808@intel.com> Date: Mon, 10 Dec 2012 00:01:27 +0800 From: xtu4 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120714 Thunderbird/14.0 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org, 'axboe@kernel.dk', di.zhang@intel.com, xtu4 Subject: [PATCH] Allow 0ms deadline latency Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Subject: [PATCH] Allow 0ms deadline latency, increase the read speed Signed-off-by: xiaobing tu --- block/deadline-iosched.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index c644137..e502d6b 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -230,7 +230,7 @@ static inline int deadline_check_fifo(struct deadline_data *dd, int ddir) /* * rq is expired! */ - if (time_after(jiffies, rq_fifo_time(rq))) + if (time_after_eq(jiffies, rq_fifo_time(rq))) return 1; return 0; -- 1.7.6