From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754643AbbGBC36 (ORCPT ); Wed, 1 Jul 2015 22:29:58 -0400 Received: from mail-qg0-f41.google.com ([209.85.192.41]:35022 "EHLO mail-qg0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754133AbbGBC3v (ORCPT ); Wed, 1 Jul 2015 22:29:51 -0400 Date: Wed, 1 Jul 2015 22:29:46 -0400 From: Tejun Heo To: Jan Kara Cc: axboe@kernel.dk, linux-kernel@vger.kernel.org, hch@infradead.org, hannes@cmpxchg.org, linux-fsdevel@vger.kernel.org, vgoyal@redhat.com, lizefan@huawei.com, cgroups@vger.kernel.org, linux-mm@kvack.org, mhocko@suse.cz, clm@fb.com, fengguang.wu@intel.com, david@fromorbit.com, gthelen@google.com, khlebnikov@yandex-team.ru Subject: Re: [PATCH 40/51] writeback: make bdi_start_background_writeback() take bdi_writeback instead of backing_dev_info Message-ID: <20150702022946.GJ26440@mtj.duckdns.org> References: <1432329245-5844-1-git-send-email-tj@kernel.org> <1432329245-5844-41-git-send-email-tj@kernel.org> <20150701075009.GA7252@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150701075009.GA7252@quack.suse.cz> 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 Wed, Jul 01, 2015 at 09:50:09AM +0200, Jan Kara wrote: > Can we add a memcg id of the wb to the tracepoint please? Because just bdi > needn't be enough when debugging stuff... Sure, will add cgroup path to identify the actual wb. css IDs aren't visible to userland. Thanks. -- tejun