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=-2.4 required=3.0 tests=DKIM_SIGNED, MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID,USER_AGENT_MUTT autolearn=ham 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 59DC7C433F4 for ; Sat, 1 Sep 2018 00:13:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DAE4120835 for ; Sat, 1 Sep 2018 00:13:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="M8xttScU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DAE4120835 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727286AbeIAEXD (ORCPT ); Sat, 1 Sep 2018 00:23:03 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:34787 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725875AbeIAEXD (ORCPT ); Sat, 1 Sep 2018 00:23:03 -0400 Received: by mail-pf1-f195.google.com with SMTP id k19-v6so6210287pfi.1; Fri, 31 Aug 2018 17:13:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=eS6f5x9QRtUQLe+IeCikEV1hkReNWR6GYSjT0Lq+71Y=; b=M8xttScUFJyuvz1zHO1NTKccoau1IuP3u72/cTX+2pGScsRExcnI92fDJ0vI1kh22Q 5VAWP+vV37QxVk4udfvndj9gWc77HaTnPdefqoOlkmc2QGYAH3eou6dObovxs7Jvs1Yf cx/3Zk/hRdzqsB3zEnSaT27+9IpVkDS9+qWdjoOg0tgLmwuQysMIrY1xwSWKSqlDz1E7 YxZHVUeVn1gnlkHegN1BVFnkOpVqA1Rm24HwO3Zf7E5akn04GewsaH1eXEz9gxDhBAF/ nB9cinF2ERcBawLBMbpN9NO3spQpqEzunzKzMaCNhUMmoXI5bt0tJMDja1VqHbEClfbL XaHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=eS6f5x9QRtUQLe+IeCikEV1hkReNWR6GYSjT0Lq+71Y=; b=g/kHO/SToQ4p1e9os6/cx6gsJaQ9ZbZt5e4zt24ldJ5SZgdHZQylaRrPL+u7cI+sbM WYNKcVlPJK47srBcTnybgHTf4NyWqJza4y8j0fdsByzN2sCN75srg+yXh71v7wwITHly r2ivE7ho79KStuHY42oA+OKqGz55zSkex2dSunRUQ2oF1jV+QEfPSnMNdlKNXDWMiyyx pbA4NrNFSALYN3WO7eJ34WAkCP82G65fDHjneBfW3fE9hIl9o+QaySwQL3jYiBlP+Wk6 ThktgRewyHGTX6gNFzUqcFCddHlG786Xea8bpIxdszt7hUnFyNmHmeA1kzavB/olQFGT EAsg== X-Gm-Message-State: APzg51CSi6oGbfHFtDmfwPKr5PCrhGa9m6Uld5WIOr/2FbWUb3YNPGqQ NwawME13nXC7KoeTXo7IlIY= X-Google-Smtp-Source: ANB0VdYn2m63ieU/H8ZsZvqBFiPskcfGbGB3DIeDrjfgcoLzD9fZZO9JJtRluU9CkD6aMDAYrmQ2BQ== X-Received: by 2002:a62:9894:: with SMTP id d20-v6mr18402900pfk.186.1535760789014; Fri, 31 Aug 2018 17:13:09 -0700 (PDT) Received: from localhost ([2620:10d:c090:180::1:a245]) by smtp.gmail.com with ESMTPSA id i25-v6sm17426493pfi.150.2018.08.31.17.13.07 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 31 Aug 2018 17:13:08 -0700 (PDT) Date: Fri, 31 Aug 2018 17:13:05 -0700 From: Tejun Heo To: Dennis Zhou Cc: Jens Axboe , Johannes Weiner , Josef Bacik , kernel-team@fb.com, linux-block@vger.kernel.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 10/15] blkcg: remove bio->bi_css and instead use bio->bi_blkg Message-ID: <20180901001305.GH1488037@devbig004.ftw2.facebook.com> References: <20180831015356.69796-1-dennisszhou@gmail.com> <20180831015356.69796-11-dennisszhou@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180831015356.69796-11-dennisszhou@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 30, 2018 at 09:53:51PM -0400, Dennis Zhou wrote: > From: "Dennis Zhou (Facebook)" > > Prior patches ensured that all bios are now associated with some blkg. > This now makes bio->bi_css unnecessary as blkg maintains a reference to > the blkcg already. > > This patch removes the field bi_css and transfers corresponding uses to > access via bi_blkg. > > Signed-off-by: Dennis Zhou Acked-by: Tejun Heo Thanks. -- tejun