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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B5CFC43334 for ; Thu, 16 Jun 2022 20:24:35 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9AB316B0071; Thu, 16 Jun 2022 16:24:34 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 932156B0073; Thu, 16 Jun 2022 16:24:34 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7AB8A6B0074; Thu, 16 Jun 2022 16:24:34 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 673116B0071 for ; Thu, 16 Jun 2022 16:24:34 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay13.hostedemail.com (Postfix) with ESMTP id 869336152B for ; Thu, 16 Jun 2022 20:24:32 +0000 (UTC) X-FDA: 79585226784.09.02617F6 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by imf19.hostedemail.com (Postfix) with ESMTP id AD3FD1A005D for ; Thu, 16 Jun 2022 20:24:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1655411069; x=1686947069; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=u7s3vzw8pok7nOqE3kB+YqdXs3ysm3lKy+WAyqtMJpg=; b=oEP/PI753FvyCWW3j+UOaA6msijfP2t8KubMA1/9XztRstP5qmuMkuR+ IRG7nnQo1/OUi/HMCcqARn+DRUh3LpsAQmu4kIZkOLyyjx5buYd1Yr7Ub MjnCzefoxQnU5L5SG/RGc28XElUviPCUACI0YydPDTu34uJlQ6kqqtahu T7mqYHoozyP2wLu+RUcanN13bplfjjapVKWGEVt7FkKRItfnIIG4UO9LV NsRQBAEH1Avw5jQxqKvgbzjs4+637sI3IMRjnK5t9nq4sDq0fv4jKUWXr yvXu6j5CVKGqusPnj1tO/UBVnIMgygEkhLdRFeFCpVZgoqyf6iJoBoDPJ w==; X-IronPort-AV: E=McAfee;i="6400,9594,10380"; a="280058661" X-IronPort-AV: E=Sophos;i="5.92,306,1650956400"; d="scan'208";a="280058661" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2022 13:24:26 -0700 X-IronPort-AV: E=Sophos;i="5.92,306,1650956400"; d="scan'208";a="641715046" Received: from rrmiller-mobl.amr.corp.intel.com (HELO [10.212.205.54]) ([10.212.205.54]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2022 13:24:25 -0700 Message-ID: <9f1d9f74-e6fd-c6cc-4999-61eccadc7bf2@intel.com> Date: Thu, 16 Jun 2022 13:24:26 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [RFC PATCH 3/6] testing/pkeys: Add additional test for pkey_alloc() Content-Language: en-US To: Sohil Mehta , ira.weiny@intel.com, linux-api@vger.kernel.org Cc: Dave Hansen , "Aneesh Kumar K . V" , x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org References: <20220610233533.3649584-1-ira.weiny@intel.com> <20220610233533.3649584-4-ira.weiny@intel.com> From: Dave Hansen In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1655411070; a=rsa-sha256; cv=none; b=AjEJWToduWSUicz9Eeqhch0AdLz84AHvAimCkFxDZqb+D6MzYP0CtpIiIX7+ryNeYmZlCq y2mEwzcTSxfmkI2rGXRZUBKb7lrbqgbdCvfQQwmOtHoygx+8mkNHdWIrDjEFZ4cTllWbp8 UoJDG5OabO//5NvuZDoOJKWmX+w5ZNI= ARC-Authentication-Results: i=1; imf19.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b="oEP/PI75"; spf=none (imf19.hostedemail.com: domain of dave.hansen@intel.com has no SPF policy when checking 134.134.136.24) smtp.mailfrom=dave.hansen@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1655411070; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=UZgenaedzhhFi5T5ZibcLlAfhzR9oTWWtybmci+9bsE=; b=VZo1HBve2zMaeE7hJ0hF0A0vOgCaqOddWtEpY9Pr4JhuHG5xRK9zehAxG11TCljdkowTvq +puY+pCL1/EDkLtU87Wv/7gE2zn7LW9iYGMStuBg2qrrV69MZmS8wjv1uL8irA5hgqY3da eSSTSd/fqpyv6EXUBMH+AZcNLZZMk9Q= X-Stat-Signature: t1zm13asforsbtbsy4um1hhzn5q16y3u X-Rspamd-Queue-Id: AD3FD1A005D Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b="oEP/PI75"; spf=none (imf19.hostedemail.com: domain of dave.hansen@intel.com has no SPF policy when checking 134.134.136.24) smtp.mailfrom=dave.hansen@intel.com; dmarc=pass (policy=none) header.from=intel.com X-Rspamd-Server: rspam07 X-Rspam-User: X-HE-Tag: 1655411069-537928 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 6/16/22 12:25, Sohil Mehta wrote: > Should we have different return error codes when compile support is > disabled vs when runtime support is missing? It doesn't *really* matter. Programs have to be able to run on old kernels which will return ENOSYS. So, _when_ new kernels return ENOSYS or ENOSPC is pretty immaterial.