From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 2/2] ahci: Use usleep_range() in ahci_start_port() Date: Thu, 11 Jan 2018 10:11:17 -0800 Message-ID: <20180111181117.GL3460072@devbig577.frc2.facebook.com> References: <20180111125551.61877-1-mika.westerberg@linux.intel.com> <20180111125551.61877-2-mika.westerberg@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-qk0-f195.google.com ([209.85.220.195]:43972 "EHLO mail-qk0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932215AbeAKSL1 (ORCPT ); Thu, 11 Jan 2018 13:11:27 -0500 Received: by mail-qk0-f195.google.com with SMTP id a5so2615446qkg.10 for ; Thu, 11 Jan 2018 10:11:27 -0800 (PST) Content-Disposition: inline In-Reply-To: <20180111125551.61877-2-mika.westerberg@linux.intel.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mika Westerberg Cc: linux-ide@vger.kernel.org On Thu, Jan 11, 2018 at 03:55:51PM +0300, Mika Westerberg wrote: > Using msleep(1) may actually sleep much longer than 1 msecs (~20 msecs) > which unnecessarily slows down system startup. Avoid that and use > usleep_range() instead. > > Signed-off-by: Mika Westerberg Heh, I'm not sure. How big of a problem is this? Thanks. -- tejun