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=-3.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 610D2C433DF for ; Fri, 21 Aug 2020 15:04:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4032420855 for ; Fri, 21 Aug 2020 15:04:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YMyC8odR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727824AbgHUPEM (ORCPT ); Fri, 21 Aug 2020 11:04:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725828AbgHUPEK (ORCPT ); Fri, 21 Aug 2020 11:04:10 -0400 Received: from mail-qk1-x744.google.com (mail-qk1-x744.google.com [IPv6:2607:f8b0:4864:20::744]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C0E8C061573; Fri, 21 Aug 2020 08:04:10 -0700 (PDT) Received: by mail-qk1-x744.google.com with SMTP id j187so1604924qke.11; Fri, 21 Aug 2020 08:04:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=1FzqZJ6ck6KUzOqSuKnj7ejxM9ufdWSJqP1xoW29qVs=; b=YMyC8odRxwt4e+ebHOdmQFNxzIqRf1A3/okUdcouS+5ljxpc1mDGkbrRKCaOWLMRFr tbYI+SM/yvrHIvogo40z5OqLqYJkChEfGfUzeEtpFZaCRIPZPxYLYEHSc17+Zo/0VE9d TzKI7FDaqtwoQKWX9hUMNi6bHRg3MniqKbnRaJ20ycXK2km/LwmfJw14EqQ2fXHsyxJH 0cd8PXp02Ei2m+BYXl573s3GRyAK3iD/xnGq61OQAg6T9ndogxeZFI095Wf2QmPScfjg nermWatu5yNdkT9mlCcjxRIfZTCkdBGzvDieCK0LVBtz3oicHcxtogJkOwk+IkcJnSXu Ya/w== 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; bh=1FzqZJ6ck6KUzOqSuKnj7ejxM9ufdWSJqP1xoW29qVs=; b=iUJkRQeFuIukuRSEOMFErl0LkqrL0GhzAQyEUQlCYB5bVklpS1yEj+XAX66UPrmDuf 00YjYkUrT04sHR23bLHQ4Lk9/mfUbjvOe4yFZyp0T/a7KDGy/9/yEPKyRxHIcqM4sBKR rVf5yAF9CBWPWFJk7Ekt+lF99XR3pZczL7zh+YbBmYCeA1/NaJL0iSOHYDoF43RtUnfK Dpo0chkyE6ts3u5DGrkIn4BdE4fdRJVT2yS4Ai5DlGX0Kjf9T0gDdvfplaJjleS78VBZ l1xqJbzaGbxMjIuYH4l3SMF3eLed3qwUj2iEh7eudzn4Ah7SXIQRKXitOzgfex6uJ7EO sb6A== X-Gm-Message-State: AOAM530WGpk0dcBgs7pBgxdpKQNKzYBRjKI8hn0kaq82MMkDD9JJ+fEO jPiy0dxR2yG/Fbo9kW0xXgw= X-Google-Smtp-Source: ABdhPJyBL+mb4e1OJT95Eq9kjSKGYgP7Np7BlljR/yVQfblx5fKS/WHmWdNwlkY/T6ACOLTj7g3OPw== X-Received: by 2002:a05:620a:24c9:: with SMTP id m9mr3122749qkn.487.1598022249324; Fri, 21 Aug 2020 08:04:09 -0700 (PDT) Received: from dschatzberg-fedora-PC0Y6AEN.dhcp.thefacebook.com ([2620:10d:c091:480::1:4586]) by smtp.gmail.com with ESMTPSA id 65sm1942875qkf.33.2020.08.21.08.04.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Aug 2020 08:04:08 -0700 (PDT) Date: Fri, 21 Aug 2020 11:04:05 -0400 From: Dan Schatzberg To: Shakeel Butt Cc: Jens Axboe , Alexander Viro , Jan Kara , Amir Goldstein , Tejun Heo , Li Zefan , Johannes Weiner , Michal Hocko , Vladimir Davydov , Andrew Morton , Hugh Dickins , Roman Gushchin , Chris Down , Yang Shi , Thomas Gleixner , "Peter Zijlstra (Intel)" , Ingo Molnar , Mathieu Desnoyers , Andrea Arcangeli , "open list:BLOCK LAYER" , open list , "open list:FILESYSTEMS (VFS and infrastructure)" , "open list:CONTROL GROUP (CGROUP)" , "open list:CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)" Subject: Re: [PATCH v6 0/4] Charge loop device i/o to issuing cgroup Message-ID: <20200821150405.GA4137@dschatzberg-fedora-PC0Y6AEN.dhcp.thefacebook.com> References: <20200528135444.11508-1-schatzberg.dan@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Thu, Aug 20, 2020 at 10:06:44AM -0700, Shakeel Butt wrote: > On Thu, May 28, 2020 at 6:55 AM Dan Schatzberg wrote: > > > > Much of the discussion about this has died down. There's been a > > concern raised that we could generalize infrastructure across loop, > > md, etc. This may be possible, in the future, but it isn't clear to me > > how this would look like. I'm inclined to fix the existing issue with > > loop devices now (this is a problem we hit at FB) and address > > consolidation with other cases if and when those need to be addressed. > > > > What's the status of this series? Thanks for reminding me about this. I haven't got any further feedback. I'll bug Jens to take a look and see if he has any concerns and if not send a rebased version.