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=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 86BB3C433DF for ; Tue, 4 Aug 2020 14:22:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6DFF1208A9 for ; Tue, 4 Aug 2020 14:22:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596550920; bh=nuDWiGLqSK4ajFwQHFNbVFvyJTuZkBAQo5NQjDOTtSI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=YDHCXm9DjU6uc7rdj199wNzKfyUk6gvYPYaLe05HkOyrSj0eiISX0px5gNqfoLGkL INcCO/kE77MAlR48a2icGA21591EUQ6sJqf4HNC2rIo3B08NhoJAmkDV4Z4QIJuUH9 RgWiC7vzuny7LSgChTaVr5KeP2EUPsAyP7+Qja80= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728616AbgHDOV7 (ORCPT ); Tue, 4 Aug 2020 10:21:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728595AbgHDOV1 (ORCPT ); Tue, 4 Aug 2020 10:21:27 -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 185A4C06174A; Tue, 4 Aug 2020 07:21:26 -0700 (PDT) Received: by mail-qk1-x744.google.com with SMTP id l6so38490054qkc.6; Tue, 04 Aug 2020 07:21:26 -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; bh=/O9Z2m9NVf7Cq+pr83lCv6zvyjimEnbIiGFBd4diED8=; b=b3HNOH37/YGGErPa7cIf3CeUvQ3NwSaYogw+asj44Yyl+LHdnN9708DjcGf/+J/mI4 7ddhkjVuWI+LqtOlmruIlRt2K0SxVYSMlcRitis+c9WT8JFjpGYByHDkD/daec1ohjsK gQB2U35oaWw+UaD4W4ZZ6GYTS/qSbU3H8HVB5pxZKES5FQIzgWsZZg0xN52B0ekhR24a TSoOkR1ZXmQMqm9W1HVc0ZBMoCRMDRqgFeNBDs3aohL/MAjjjKze/c53+4uJ3ghC3MPP 5CBTE23ngN/Ai3lkJpdE8EpPt6ru7pGx4LhydPfCWTvrm3j5BaJ0vPj6eMrws7evMaec 5Xvg== 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; bh=/O9Z2m9NVf7Cq+pr83lCv6zvyjimEnbIiGFBd4diED8=; b=O1KF8oq5Jv9BcZJXFPgTaji/frJVu2kfdZNx3kriMvmuW4S5ox5Qe6kbX5XN0l8ByR E7NPMZPwfVfF+HVzV2eLz+xMph7Ua8+dxTaJQBbyGqwGr+n8nrxmaqDYnb+WJwUE3UyJ x0Yh6ykDu/l/BAwpKrgqIYZL6hg/7jMDAHDAk8LFd0h7PDdteegMhvZZpJMEfJSCVD6P Buwq0Fi9tpa19P/qX7Y5k9y4FMRfLl6xgWRDE6KnYKkoAhLmbgBFAkkC0n5Us1osTKF8 5mtBJX5VgcNFrjptcjxy/xQ9ivvIBKrEcK6+KwI06R6rkRvMSz22IPd3D66u5tmRl6qs KzdQ== X-Gm-Message-State: AOAM530lPep6qr3FinS3Hmz35a8LCLHodh85tVQhl86F05lGJkZDPip3 /Ak0W7r3xhYIYSB4E669VXDaJr5M X-Google-Smtp-Source: ABdhPJwNwl/b42CwVnrnK5m+KFgnd6uk2qrPihS+gKLqbtK4a3g86uMLIDn2KxH2HORQPaL8pYDsPw== X-Received: by 2002:a37:4ca:: with SMTP id 193mr21318549qke.198.1596550885183; Tue, 04 Aug 2020 07:21:25 -0700 (PDT) Received: from localhost ([2620:10d:c091:480::1:d024]) by smtp.gmail.com with ESMTPSA id e129sm18846554qkf.132.2020.08.04.07.21.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Aug 2020 07:21:24 -0700 (PDT) Date: Tue, 4 Aug 2020 10:21:23 -0400 From: Tejun Heo To: Daniel Wagner Cc: Muneendra , linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, pbonzini@redhat.com, emilne@redhat.com, mkumar@redhat.com Subject: Re: [RFC 01/16] blkcg:Introduce blkio.app_identifier knob to blkio controller Message-ID: <20200804142123.GA4819@mtj.thefacebook.com> References: <1596507196-27417-1-git-send-email-muneendra.kumar@broadcom.com> <1596507196-27417-2-git-send-email-muneendra.kumar@broadcom.com> <20200804113130.qfi5agzilso3mlbp@beryllium.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200804113130.qfi5agzilso3mlbp@beryllium.lan> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Hello, On Tue, Aug 04, 2020 at 01:31:30PM +0200, Daniel Wagner wrote: > Hi, > > [cc Tejun] > > On Tue, Aug 04, 2020 at 07:43:01AM +0530, Muneendra wrote: > > This Patch added a unique application identifier i.e > > blkio.app_identifier knob to blkio controller which > > allows identification of traffic sources at an > > individual cgroup based Applications > > (ex:virtual machine (VM))level in both host and > > fabric infrastructure. I'm not sure it makes sense to introduce custom IDs for these given that there already are unique per-host cgroup IDs which aren't recycled. Thanks. -- tejun