From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f70.google.com (mail-pl0-f70.google.com [209.85.160.70]) by kanga.kvack.org (Postfix) with ESMTP id B77D16B0345 for ; Wed, 16 May 2018 13:02:02 -0400 (EDT) Received: by mail-pl0-f70.google.com with SMTP id a6-v6so857203pll.22 for ; Wed, 16 May 2018 10:02:02 -0700 (PDT) Received: from mga14.intel.com (mga14.intel.com. [192.55.52.115]) by mx.google.com with ESMTPS id 38-v6si3002591plc.446.2018.05.16.10.02.01 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 16 May 2018 10:02:01 -0700 (PDT) Subject: Re: [PATCH] pkeys: Introduce PKEY_ALLOC_SIGNALINHERIT and change signal semantics References: <20180502132751.05B9F401F3041@oldenburg.str.redhat.com> <248faadb-e484-806f-1485-c34a72a9ca0b@intel.com> <822a28c9-5405-68c2-11bf-0c282887466d@redhat.com> <57459C6F-C8BA-4E2D-99BA-64F35C11FC05@amacapital.net> <6286ba0a-7e09-b4ec-e31f-bd091f5940ff@redhat.com> <20180503021058.GA5670@ram.oc3035372033.ibm.com> <927c8325-4c98-d7af-b921-6aafcf8fe992@redhat.com> <314e1a48-db94-9b37-8793-a95a2082c9e2@redhat.com> <008010c1-20a1-c307-25ac-8a69d672d031@redhat.com> From: Dave Hansen Message-ID: <36f7fb7b-9b78-cb41-c59a-8346b8d7509b@intel.com> Date: Wed, 16 May 2018 10:01:59 -0700 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: Florian Weimer , Andy Lutomirski Cc: Andy Lutomirski , linuxram@us.ibm.com, Linux-MM , Linux API , linux-x86_64@vger.kernel.org, linux-arch , X86 ML , linuxppc-dev On 05/14/2018 08:34 AM, Florian Weimer wrote: >>> The initial PKRU value can currently be configured by the system >>> administrator.A I fear this approach has too many moving parts to be >>> viable. >> >> Honestly, I think we should drop that option. I dona??t see how we can >> expect an administrator to do this usefully. > > I don't disagreea??it makes things way less predictable in practice. I originally put that thing in there to make Andy happy with the initial permissions, and give us a way to back it out if something went wrong. I have no objections to removing it either.