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=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,SPF_PASS,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 D0442C64EB8 for ; Thu, 4 Oct 2018 20:29:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9376E2098A for ; Thu, 4 Oct 2018 20:29:53 +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="uaq2eOkF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9376E2098A 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 S1727759AbeJEDYp (ORCPT ); Thu, 4 Oct 2018 23:24:45 -0400 Received: from mail-yb1-f178.google.com ([209.85.219.178]:41182 "EHLO mail-yb1-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727354AbeJEDYp (ORCPT ); Thu, 4 Oct 2018 23:24:45 -0400 Received: by mail-yb1-f178.google.com with SMTP id e16-v6so4466436ybk.8; Thu, 04 Oct 2018 13:29:51 -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=YiK7lyO7b2aJXcB42eMi3FeR2xojGMX2RNKuvQuI354=; b=uaq2eOkFmUbNpetu1c60s5D+IqUxSSfO9pQxGrIUu7FY/ndIBVnRJNO8AUPjYhbWNh z+NtbTHPpUZdFauZoJ2a472aQ+407/2g+OFqcTQ3EcYu9uSJ2ewtoTWJzr+z1CbiBUq7 EnO32/7sM2CdYIK3FnxrWlIxtQ5ytpPFFDs6Abt9ctobGJmPrsMIhu5hnXHMOZYu/xC4 t9M/iyeTYH/Ok7uO7TsxkyVT9AQh5dSa8FaZFGMInPm062lOBTSlUeOfuQvlDTgORX+z 7HPMr3x6kQGTnU78bnG2+2yeWAne7kNQVWFH2Q8eXw/wL38KeqmBOewcUpu5CUdOlUBq J8dw== 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=YiK7lyO7b2aJXcB42eMi3FeR2xojGMX2RNKuvQuI354=; b=qAxmyjYrptwTzxvx8WA++jKdQhERMAWmer3XY10XKlliV/cWWwevjN2TTViIXAp8SC dSSPlkQTxPru2ruSRwkcz8RiLMifSHtB8a5X64ONr/hNH6ogDpejVaAoVIlyohB/+Gpp HJX17SiKUVS9kXbVJsaP3s8UMcBO4KtBa4El6nEFUpmHbqxHYsi3YqUTmGHB/O+uAZ5P YhAFWPJ+l92a5qUUdHuWs4vyO0/321kqg8O5laSsIiWgJcqKN3lo7GfeyNIPnQUw4fnL 20+4SpIRLftJkkAUwOyqZN1WvhBWd3rtF8ipnKZpbtpCaxq2PKg3CyCje0AxuDmEcr5P 9n6Q== X-Gm-Message-State: ABuFfojwLtMfX11/IYWyoCTZ4ZMuYSuSR69i3wg1q+dGZXhJeXbkBfcR GI3YcUpvcGIEG6tAmHNDM/s= X-Google-Smtp-Source: ACcGV611+5GvD9iQr4dcxE2kpU8UST3ie3lgXPUU/ZL5m3+jmynlQaOx7mjT/BalxeVbJYBhhamO3A== X-Received: by 2002:a25:74ce:: with SMTP id p197-v6mr4675444ybc.343.1538684990609; Thu, 04 Oct 2018 13:29:50 -0700 (PDT) Received: from localhost ([2620:10d:c091:200::7:7472]) by smtp.gmail.com with ESMTPSA id u79-v6sm551541ywe.110.2018.10.04.13.29.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 04 Oct 2018 13:29:49 -0700 (PDT) Date: Thu, 4 Oct 2018 13:29:47 -0700 From: Tejun Heo To: "Michael Kerrisk (man-pages)" Cc: lkml , "open list:CONTROL GROUP (CGROUP)" , "Serge E. Hallyn" , Amin Jamali , Joao De Almeida Pereira Subject: Re: Cgroup v2 bug: "domain invalid" node can't be converted to "threaded" Message-ID: <20181004202947.GL270328@devbig004.ftw2.facebook.com> References: <20181002210741.GJ270328@devbig004.ftw2.facebook.com> <0cf4f9de-70d2-cf94-12d2-283759638e20@gmail.com> <20181004182017.GK270328@devbig004.ftw2.facebook.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181004182017.GK270328@devbig004.ftw2.facebook.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, Oct 04, 2018 at 11:20:17AM -0700, Tejun Heo wrote: > Subject: cgroup: Fix dom_cgrp propagation when enabling threaded mode > > A cgroup which is already a threaded domain may be converted into a > threaded cgroup if the prerequisite conditions are met. When this > happens, all threaded descendant should also have their ->dom_cgrp > updated to the new threaded domain cgroup. Unfortunately, this > propagation was missing leading to the following failure. Applied to cgroup/for-4.19-fixes w/ reported-bys added. Thanks. -- tejun