From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_NEOMUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0FD0EC31E4C for ; Fri, 14 Jun 2019 13:41:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D9A912168B for ; Fri, 14 Jun 2019 13:41:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=toxicpanda-com.20150623.gappssmtp.com header.i=@toxicpanda-com.20150623.gappssmtp.com header.b="gY8OMr7B" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728473AbfFNNlV (ORCPT ); Fri, 14 Jun 2019 09:41:21 -0400 Received: from mail-qt1-f195.google.com ([209.85.160.195]:37598 "EHLO mail-qt1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728239AbfFNNlV (ORCPT ); Fri, 14 Jun 2019 09:41:21 -0400 Received: by mail-qt1-f195.google.com with SMTP id y57so2473573qtk.4 for ; Fri, 14 Jun 2019 06:41:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ZR/EKmu5gWkoNUBhKpXkUDUjfp2N+yxxCefDqkXhc2k=; b=gY8OMr7BO35CDdoLUsDArY+W5z7EkRkN8AGq0dhi/gK6t+98bkfUbhJeUYUMBxtq+E g/Xqmry39VK37V6HcDuOlZVZdFScnNlI5fO22ZjQAxXKe8UxoQaTYQdYHu9NWssVJh09 oQKm2CnNGBnYzpdV/hzWHXwBLN0fD60gYqJER5Y1wmA5i+s/1pZ1w5+Vsa+6X/IEpVo4 4DwFbeGOWDMdnnUzU79UmAhVu8HCPM3pSWNcoxEciJpp2cxbWwhpvdVvy9nHYaBDyDXg ApDcHnYRFm/c0Vnxbt/lDNoUai9VByA89l35kZjTMomAM3HeFl5Cckoxu3XJbeh6ZuDO dfKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=ZR/EKmu5gWkoNUBhKpXkUDUjfp2N+yxxCefDqkXhc2k=; b=BwJQk2MdG1NZ26dAvl0ff6WZ5WlFF1/IHHEZkPWQE1Hm0cMVIDEBMGQDvKEIRDycw3 ErIv/UBN+AB+PNCVL8NAie3bTkDmqG5IMd4HKimtG3sbJmpSAvR6mW2kqoVG4FmJMYcM YOuGQgPF+YWWsgYX92jIvFhDbI6iH3pJkGKgIBffVTl66La5TABjJNo7flpiUT6bLk3O n9nSJWC4A940EM5w9Q6bF7veF7r4FPG3eG/TZwZQBPQF4X84LSpCvEGV3LvAYsuDZaFW g/g+VcfF4UhgMnrmBuguQH3bpX/+yCRsO2kIennLb64CZw9b+UI63Wm4lADWQe6cMOi7 CtJA== X-Gm-Message-State: APjAAAXlM5SqKSCjxf5pU9j1+GBZokCvNgUul0B82PlHIsbrceDPUgFk c61mFdxgMSOgbtAvmJbzpJGmeg== X-Google-Smtp-Source: APXvYqws96+Oa1Yx5sGxA4g4gfNEVNQGDUhXxTBNVV5tp7vpSzt17KeuRr00AjHyuAVlm/HgeGIJRQ== X-Received: by 2002:ac8:2d19:: with SMTP id n25mr42440329qta.180.1560519680205; Fri, 14 Jun 2019 06:41:20 -0700 (PDT) Received: from localhost ([2620:10d:c091:480::a658]) by smtp.gmail.com with ESMTPSA id p37sm1685047qtc.35.2019.06.14.06.41.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 14 Jun 2019 06:41:19 -0700 (PDT) Date: Fri, 14 Jun 2019 09:41:18 -0400 From: Josef Bacik To: Tejun Heo Cc: dsterba@suse.com, clm@fb.com, josef@toxicpanda.com, axboe@kernel.dk, jack@suse.cz, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, kernel-team@fb.com Subject: Re: [PATCH 1/8] blkcg, writeback: Add wbc->no_wbc_acct Message-ID: <20190614134117.pngediuiim7ktcvi@MacBook-Pro-91.local> References: <20190614003350.1178444-1-tj@kernel.org> <20190614003350.1178444-2-tj@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190614003350.1178444-2-tj@kernel.org> User-Agent: NeoMutt/20180716 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Thu, Jun 13, 2019 at 05:33:43PM -0700, Tejun Heo wrote: > When writeback IOs are bounced through async layers, the IOs should > only be accounted against the wbc from the original bdi writeback to > avoid confusing cgroup inode ownership arbitration. Add > wbc->no_wbc_acct to allow disabling wbc accounting. This will be used > make btfs compression work well with cgroup IO control. > > Signed-off-by: Tejun Heo Reviewed-by: Josef Bacik Thanks, Josef