From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yw0-f198.google.com (mail-yw0-f198.google.com [209.85.161.198]) by kanga.kvack.org (Postfix) with ESMTP id 2E7D96B02FD for ; Thu, 1 Jun 2017 16:52:06 -0400 (EDT) Received: by mail-yw0-f198.google.com with SMTP id d80so35351041ywb.14 for ; Thu, 01 Jun 2017 13:52:06 -0700 (PDT) Received: from mail-yw0-x22f.google.com (mail-yw0-x22f.google.com. [2607:f8b0:4002:c05::22f]) by mx.google.com with ESMTPS id v14si6741026ywv.142.2017.06.01.13.52.05 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Jun 2017 13:52:05 -0700 (PDT) Received: by mail-yw0-x22f.google.com with SMTP id l74so25486577ywe.2 for ; Thu, 01 Jun 2017 13:52:05 -0700 (PDT) Date: Thu, 1 Jun 2017 16:52:03 -0400 From: Tejun Heo Subject: Re: [RFC PATCH v2 11/17] cgroup: Implement new thread mode semantics Message-ID: <20170601205203.GB13390@htj.duckdns.org> References: <20170524203616.GO24798@htj.duckdns.org> <9b147a7e-fec3-3b78-7587-3890efcd42f2@redhat.com> <20170524212745.GP24798@htj.duckdns.org> <20170601145042.GA3494@htj.duckdns.org> <20170601151045.xhsv7jauejjis3mi@hirez.programming.kicks-ass.net> <20170601184740.GC3494@htj.duckdns.org> <20170601203815.GA13390@htj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Waiman Long Cc: Peter Zijlstra , Li Zefan , Johannes Weiner , Ingo Molnar , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, kernel-team@fb.com, pjt@google.com, luto@amacapital.net, efault@gmx.de Hello, On Thu, Jun 01, 2017 at 04:48:48PM -0400, Waiman Long wrote: > I think we are on agreement here. I should we should just document how > userland can work around the internal process competition issue by > setting up the cgroup hierarchy properly. Then we can remove the no > internal process constraint. Heh, we agree on the immediate solution but not the final direction. This requirement affects how controllers implement resource control in significant ways. It is a restriction which can be worked around in userland relatively easily. I'd much prefer to keep the invariant intact. Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org