From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754896Ab1ILKXE (ORCPT ); Mon, 12 Sep 2011 06:23:04 -0400 Received: from merlin.infradead.org ([205.233.59.134]:42101 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752068Ab1ILKXC convert rfc822-to-8bit (ORCPT ); Mon, 12 Sep 2011 06:23:02 -0400 Subject: Re: [PATCH 13/18] writeback: limit max dirty pause time From: Peter Zijlstra To: Wu Fengguang Cc: "linux-fsdevel@vger.kernel.org" , Andrew Morton , Jan Kara , Christoph Hellwig , Dave Chinner , Greg Thelen , Minchan Kim , Vivek Goyal , Andrea Righi , linux-mm , LKML Date: Mon, 12 Sep 2011 12:22:31 +0200 In-Reply-To: <20110907023505.GB13755@localhost> References: <20110904015305.367445271@intel.com> <20110904020916.329482509@intel.com> <1315320726.14232.11.camel@twins> <20110907023505.GB13755@localhost> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Mailer: Evolution 3.0.2- Message-ID: <1315822951.26517.25.camel@twins> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2011-09-07 at 10:35 +0800, Wu Fengguang wrote: > So yeah, the HZ value does impact the minimal available sleep time... There's always schedule_hrtimeout() and we could trivially add a io_schedule_hrtimeout() variant if you need it.