From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932904AbdHVNQy (ORCPT ); Tue, 22 Aug 2017 09:16:54 -0400 Received: from mx2.suse.de ([195.135.220.15]:38333 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932657AbdHVNQx (ORCPT ); Tue, 22 Aug 2017 09:16:53 -0400 Date: Tue, 22 Aug 2017 15:16:50 +0200 From: Michal Hocko To: "Rafael J. Wysocki" Cc: Chen Yu , linux-mm@kvack.org, Andrew Morton , Mel Gorman , Vlastimil Babka , Len Brown , Dan Williams , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH][v2] PM / Hibernate: Feed the wathdog when creating snapshot Message-ID: <20170822131649.GL9729@dhcp22.suse.cz> References: <1503372002-13310-1-git-send-email-yu.c.chen@intel.com> <1595884.XH9dSsijkg@aspire.rjw.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1595884.XH9dSsijkg@aspire.rjw.lan> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 22-08-17 14:55:39, Rafael J. Wysocki wrote: [...] > And you may want to touch the watchdog at the end too in case > page_count is small then. Why would that be needed? If the number of pages is slow then we will release the IRQ lock early and won't need to care about watchdog at all. -- Michal Hocko SUSE Labs