Received: by 2002:a25:ad19:0:0:0:0:0 with SMTP id y25csp8939667ybi; Tue, 23 Jul 2019 18:30:16 -0700 (PDT) X-Google-Smtp-Source: APXvYqyW/LV++BWaDv2znxvjGTPQ0xJFQkWyD6CLdn64Gauisa6uaA7cnaidZ9DuxNOPha1NmmFp X-Received: by 2002:a17:90a:bd8c:: with SMTP id z12mr9543963pjr.60.1563931815959; Tue, 23 Jul 2019 18:30:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1563931815; cv=none; d=google.com; s=arc-20160816; b=cHdsl/zNlFJZpQ2tBoeFDLeu+rpA+sFHpVya2OPGJ2qI33yOijX3i4U4CqWXUmdHWT q6J2URwsUoWNJ3cSjgfObInpcFaPRxQqIT5o2MoLfVpKhwDlByo1WUHx6FNlDnOe21ms s4wpZodM6wnvGdabvfj7M6Jc8WqQHGABRAcxMTuXbUhdAnAMpscuF+Qaasar+l1IvTYG oQbKGH6IYeI0DzJ5x98N4B2qKYZ6+XrMPFFuscS7x6gPzU9fa7iodXIBZB9RE2y8UhqO 3r5/lsWjGi/oKe6j5JTKHybfMeyS/iw7oeiWbjyFe/1Mgxb3ioKGSzb+Rn9jM5GAhJlN T0Xw== 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; bh=sCH/wuNhaXWPuLd4shr34nF8l/MIoiLg6dyLUAratJg=; b=i2aX1uXT07UYfAbDga1E0JkLDUvpj6elX7TjGRAgJNsh9Vwxh1GF+7B1QpB8N+ElxS YgnpFBalQfsx15VcQhUQrliYYHtCAJRMxVYSuqHopGbgpqYq1Ty9yqJ0GAZ1W+eNMilN jLJSsdnI/aiuBbSHuuzyXNI35zoUC3ElCIdeNu3Iv55WTqxORRcGuRBaRCU+ml2CvolS EtGtHnXk7k9TAjT2l6pB9pGV055Yx/ax5TJK0MfxgpYsDzf2RqmSoVRjLxWUMMrl/aCQ +QFVsbP5vSTZ+lK+zX5hx160tnTCSvS5ONyW2nh0BwGLi1j2X6wFOerdVMHtfUZm+Fyb rlkQ== ARC-Authentication-Results: i=1; mx.google.com; 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 f32si11515341pje.70.2019.07.23.18.30.00; Tue, 23 Jul 2019 18:30:15 -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; 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 S1732393AbfGWQTM (ORCPT + 99 others); Tue, 23 Jul 2019 12:19:12 -0400 Received: from verein.lst.de ([213.95.11.211]:43035 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728180AbfGWQTK (ORCPT ); Tue, 23 Jul 2019 12:19:10 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 1950868B02; Tue, 23 Jul 2019 18:19:08 +0200 (CEST) Date: Tue, 23 Jul 2019 18:19:07 +0200 From: Christoph Hellwig To: Jason Gunthorpe Cc: Souptick Joarder , Christoph Hellwig , =?iso-8859-1?B?Suly9G1l?= Glisse , Ben Skeggs , Ralph Campbell , Linux-MM , "nouveau@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , Felix Kuehling Subject: Re: [PATCH 1/6] mm: always return EBUSY for invalid ranges in hmm_range_{fault,snapshot} Message-ID: <20190723161907.GB1655@lst.de> References: <20190722094426.18563-1-hch@lst.de> <20190722094426.18563-2-hch@lst.de> <20190723145441.GI15331@mellanox.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190723145441.GI15331@mellanox.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 23, 2019 at 02:54:45PM +0000, Jason Gunthorpe wrote: > I think without the commit message I wouldn't have been able to > understand that, so Christoph, could you also add the comment below > please? I don't think this belongs into this patch. I can add it as a separate patch under your name and with your signoff if you are ok with that.