From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [PATCH] workqueue: warn if memory reclaim tries to flush !WQ_MEM_RECLAIM workqueue Date: Fri, 29 Jan 2016 16:17:39 +0100 Message-ID: <20160129151739.GA1087@worktop> References: <20151203002810.GJ19878@mtj.duckdns.org> <20151203093350.GP17308@twins.programming.kicks-ass.net> <20151203100018.GO11639@twins.programming.kicks-ass.net> <20151203144811.GA27463@mtj.duckdns.org> <20151203150442.GR17308@twins.programming.kicks-ass.net> <20151203150604.GC27463@mtj.duckdns.org> <20151203192616.GJ27463@mtj.duckdns.org> <20160126173843.GA11115@ulmo.nvidia.com> <20160128101210.GC6357@twins.programming.kicks-ass.net> <20160129110941.GK32380@htj.duckdns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20160129110941.GK32380-piEFEHQLUPpN0TnZuCh8vA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tejun Heo Cc: Thierry Reding , Ulrich Obergfell , Ingo Molnar , Andrew Morton , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-team-b10kYP2dOMg@public.gmane.org, Jon Hunter , linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, rmk+kernel-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, Johannes Weiner , linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org List-Id: linux-tegra@vger.kernel.org On Fri, Jan 29, 2016 at 06:09:41AM -0500, Tejun Heo wrote: > I posted a patch to disable > disable flush dependency checks on those workqueues and there's a > outreachy project to weed out the users of the old interface, so > hopefully this won't be an issue soon. Will that same project review all workqueue users for the strict per-cpu stuff, so we can finally kill that weird stuff you do on hotplug? From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f44.google.com (mail-wm0-f44.google.com [74.125.82.44]) by kanga.kvack.org (Postfix) with ESMTP id A3E5A6B0009 for ; Fri, 29 Jan 2016 10:17:48 -0500 (EST) Received: by mail-wm0-f44.google.com with SMTP id p63so72924664wmp.1 for ; Fri, 29 Jan 2016 07:17:48 -0800 (PST) Received: from casper.infradead.org (casper.infradead.org. [2001:770:15f::2]) by mx.google.com with ESMTPS id vx5si22711700wjc.219.2016.01.29.07.17.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 29 Jan 2016 07:17:47 -0800 (PST) Date: Fri, 29 Jan 2016 16:17:39 +0100 From: Peter Zijlstra Subject: Re: [PATCH] workqueue: warn if memory reclaim tries to flush !WQ_MEM_RECLAIM workqueue Message-ID: <20160129151739.GA1087@worktop> References: <20151203002810.GJ19878@mtj.duckdns.org> <20151203093350.GP17308@twins.programming.kicks-ass.net> <20151203100018.GO11639@twins.programming.kicks-ass.net> <20151203144811.GA27463@mtj.duckdns.org> <20151203150442.GR17308@twins.programming.kicks-ass.net> <20151203150604.GC27463@mtj.duckdns.org> <20151203192616.GJ27463@mtj.duckdns.org> <20160126173843.GA11115@ulmo.nvidia.com> <20160128101210.GC6357@twins.programming.kicks-ass.net> <20160129110941.GK32380@htj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160129110941.GK32380@htj.duckdns.org> Sender: owner-linux-mm@kvack.org List-ID: To: Tejun Heo Cc: Thierry Reding , Ulrich Obergfell , Ingo Molnar , Andrew Morton , linux-kernel@vger.kernel.org, kernel-team@fb.com, Jon Hunter , linux-tegra@vger.kernel.org, rmk+kernel@arm.linux.org.uk, Johannes Weiner , linux-mm@kvack.org On Fri, Jan 29, 2016 at 06:09:41AM -0500, Tejun Heo wrote: > I posted a patch to disable > disable flush dependency checks on those workqueues and there's a > outreachy project to weed out the users of the old interface, so > hopefully this won't be an issue soon. Will that same project review all workqueue users for the strict per-cpu stuff, so we can finally kill that weird stuff you do on hotplug? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756289AbcA2PRt (ORCPT ); Fri, 29 Jan 2016 10:17:49 -0500 Received: from casper.infradead.org ([85.118.1.10]:38155 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751588AbcA2PRs (ORCPT ); Fri, 29 Jan 2016 10:17:48 -0500 Date: Fri, 29 Jan 2016 16:17:39 +0100 From: Peter Zijlstra To: Tejun Heo Cc: Thierry Reding , Ulrich Obergfell , Ingo Molnar , Andrew Morton , linux-kernel@vger.kernel.org, kernel-team@fb.com, Jon Hunter , linux-tegra@vger.kernel.org, rmk+kernel@arm.linux.org.uk, Johannes Weiner , linux-mm@kvack.org Subject: Re: [PATCH] workqueue: warn if memory reclaim tries to flush !WQ_MEM_RECLAIM workqueue Message-ID: <20160129151739.GA1087@worktop> References: <20151203002810.GJ19878@mtj.duckdns.org> <20151203093350.GP17308@twins.programming.kicks-ass.net> <20151203100018.GO11639@twins.programming.kicks-ass.net> <20151203144811.GA27463@mtj.duckdns.org> <20151203150442.GR17308@twins.programming.kicks-ass.net> <20151203150604.GC27463@mtj.duckdns.org> <20151203192616.GJ27463@mtj.duckdns.org> <20160126173843.GA11115@ulmo.nvidia.com> <20160128101210.GC6357@twins.programming.kicks-ass.net> <20160129110941.GK32380@htj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160129110941.GK32380@htj.duckdns.org> User-Agent: Mutt/1.5.22.1 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 29, 2016 at 06:09:41AM -0500, Tejun Heo wrote: > I posted a patch to disable > disable flush dependency checks on those workqueues and there's a > outreachy project to weed out the users of the old interface, so > hopefully this won't be an issue soon. Will that same project review all workqueue users for the strict per-cpu stuff, so we can finally kill that weird stuff you do on hotplug?