Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp7593039yba; Thu, 2 May 2019 12:36:52 -0700 (PDT) X-Google-Smtp-Source: APXvYqwcx8GycAU2O0NRZkZk21NrODTCjrrTMKPJX1geXkMvVg6qGRUXKJK3LJ+RC/WNqcraimCC X-Received: by 2002:a65:6490:: with SMTP id e16mr5835595pgv.13.1556825812750; Thu, 02 May 2019 12:36:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1556825812; cv=none; d=google.com; s=arc-20160816; b=ZqtiIU1NgJuVxEqMF4sJojKGxHtdr8xEkEBXTU0LijTyqr9piKuwLyjLPduFkjhVxs 35bD5qLjt+4bS6B1G2zEPNwIvby3ltuCEHb/Yj9oqRQ90vjqtj/kK7tNmMV0fFhE3OUM yezTLGFriuqavBAx+HYkiT2oDPbhTgbocSOYfjSCOns/Mu5sVGq/y4VgZgSBjfGosouA sbIhAINpatozqFUXLZ5uknQXsGvQErpHSmDqFrT21FHf4fLIuLj8F62/nbnqtxsf3OcG RGK+DIx0Zoynu6Uda7ZOde88OTssEsDLutaQ6zwzBh/CQfW+IVsLmEnt08pY5mrcwNfg ntSQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=odIetb1els/jvXDHDGUMS/oa2CaqqVlxMP0+xlzywv8=; b=BtvOmFL0FejxMe7u4fT2DKGIkJZ9/bvfG1OegQ1+kIZDk0pomnWDt9q2VU55rJvLaI LixVF3l1B+lDtkvwJflui64JoMBh1KcGbKlQGhj6prpGhZ9zyBfvIMx/JohqoyigqXx3 wyoi8C2XYjSdYDkfmDD5RAImfGcgMm0TdZMv6J2zN6Yodosu2u/j34JmoOqLeSqeiVYB 8Sm4nCQIaCzWMK3XwHrpj65Fm6NjbHhHCUGqFYLSvza8X55uUJDI+DvzcmBcxtHbMcek N+A7MXgdiEzAV7KTVy68emPUk26firsH4DSpxFJ6mqCd0xnVJtTOMp5AMHecjXdHf/Bk Teiw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@brauner.io header.s=google header.b=bsHHJYVc; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z184si15523185pgb.355.2019.05.02.12.36.36; Thu, 02 May 2019 12:36:52 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@brauner.io header.s=google header.b=bsHHJYVc; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726414AbfEBTfO (ORCPT + 99 others); Thu, 2 May 2019 15:35:14 -0400 Received: from mail-ed1-f66.google.com ([209.85.208.66]:40767 "EHLO mail-ed1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726144AbfEBTfO (ORCPT ); Thu, 2 May 2019 15:35:14 -0400 Received: by mail-ed1-f66.google.com with SMTP id e56so3170220ede.7 for ; Thu, 02 May 2019 12:35:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brauner.io; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=odIetb1els/jvXDHDGUMS/oa2CaqqVlxMP0+xlzywv8=; b=bsHHJYVcI0Qp7q2g/0MnFAnP2XdgO+s4OnXJUz1ilz/HeIx6MFO8iBg+7x6H9HWWxm BtWu1EC3QltUp+eDQ/i3iKcqUnqNeElHC49AkCvqi6HVr2m1DTn1buJUt2TCgCpFyq7p /igmbALiHipVcQl4FjiteqhUqDGcXV3Tu8r19SQMGMf2o9V3YJDV74eUsvK2DkWgbilb W+gTuAeQoU9RSEDINzzKMDg4gScIocy9v56jOmBZQvi7bICxpPpPgRf01MRR+bDBtBnE F6+G0Hb24awyZy3mWFG0IDf7L1moYeR8duzR4akQitXWC2Stqwr5MgRbMeXvwjEnMSii ow+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:user-agent; bh=odIetb1els/jvXDHDGUMS/oa2CaqqVlxMP0+xlzywv8=; b=th+LQ81yjlA3WzdmSP8aKP/kxbkTaD5Sm/SOuKnmsGNIjPuXqtAwnBkF7vtaFA7Xx0 ubF4iuHPe9SSlALHnRm7z680ILb/Q+BhO6cUi16Ahg2WTShdolUwW/ZQyMbXtTTXcBQg Mc2RpeCvZ0X/NTiyIuQOweeaSQ+3RTSyCvL6RKJj5a+rX6C/GLbJiv8EX/e6mzb0X/2l Q9sP0YLYRBUQS3kIfiOKS8ue0ww6nlBWktAPi1TWj5B2qdgai/BQp7qpRYhYANz3Xn8U EYbh2R+Nxetd8ul+Te7a3yHMOIVA8+tRX9ypzcVtHo0iJ9/Qv1UFnZXkghXtdmjNnieo zZTw== X-Gm-Message-State: APjAAAVlB7zqNjk+1doAEOaJQs55LC6Hx2Mfr6IoVhoo7h+GAIPmI/ea yu+Zflh1Tqpvv97s1SudR4w3wQ== X-Received: by 2002:a17:906:7b58:: with SMTP id n24mr2745635ejo.224.1556825712661; Thu, 02 May 2019 12:35:12 -0700 (PDT) Received: from brauner.io ([212.91.227.56]) by smtp.gmail.com with ESMTPSA id z3sm32010eja.32.2019.05.02.12.35.10 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 02 May 2019 12:35:11 -0700 (PDT) Date: Thu, 2 May 2019 21:35:10 +0200 From: Christian Brauner To: Joel Fernandes Cc: Oleg Nesterov , linux-kernel@vger.kernel.org, Andy Lutomirski , Steven Rostedt , Daniel Colascione , Jann Horn , Tim Murray , Jonathan Kowalski , Linus Torvalds , Al Viro , Kees Cook , David Howells , kernel-team@android.com, Andrew Morton , Arnd Bergmann , "Eric W. Biederman" , Greg Kroah-Hartman , Ingo Molnar , KJ Tsanaktsidis , linux-kselftest@vger.kernel.org, Michal Hocko , Nadav Amit , "Peter Zijlstra (Intel)" , Serge Hallyn , Shuah Khan , Thomas Gleixner , Tycho Andersen Subject: Re: [PATCH v2 1/2] Add polling support to pidfd Message-ID: <20190502193509.poponmy3j67xjxth@brauner.io> References: <20190430162154.61314-1-joel@joelfernandes.org> <20190501151312.GA30235@redhat.com> <20190502151320.cvc6uc3b4bmww23k@brauner.io> <20190502160247.GD7323@redhat.com> <20190502191437.GA103213@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190502191437.GA103213@google.com> User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 02, 2019 at 03:14:37PM -0400, Joel Fernandes wrote: > On Thu, May 02, 2019 at 06:02:48PM +0200, Oleg Nesterov wrote: > > On 05/02, Christian Brauner wrote: > > > > > > On Wed, May 01, 2019 at 05:13:12PM +0200, Oleg Nesterov wrote: > > > > > > > > Otherwise I see no problems. > > > > > > I'll remove the WARN_ON() check when applying this. Can I get your > > > Acked/Review, Oleg? > > Oh, ok. Good point about the de_thread race. Agreed with you. > > > Yes, feel free to add > > > > Reviewed-by: Oleg Nesterov > > > > Hmm. Somehow I didn't read the changelog before, I just noticed > > Suggested-by: Oleg Nesterov > > Please remove ;) Thanks Joel, I appreciate it, but it is not my idea. > > Ok no problem. You have been very helpful so thank you for that! Yep, big thank you, Oleg! :) Christian