From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zqvl91ZkCzF0b1 for ; Tue, 27 Feb 2018 08:16:20 +1100 (AEDT) Subject: Re: [PATCH v12 3/3] mm, x86, powerpc: display pkey in smaps only if arch supports pkeys To: Ram Pai , mpe@ellerman.id.au, mingo@redhat.com, akpm@linux-foundation.org References: <1519257138-23797-1-git-send-email-linuxram@us.ibm.com> <1519257138-23797-4-git-send-email-linuxram@us.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, x86@kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, benh@kernel.crashing.org, paulus@samba.org, khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com, bsingharora@gmail.com, hbabu@us.ibm.com, mhocko@kernel.org, bauerman@linux.vnet.ibm.com, ebiederm@xmission.com, corbet@lwn.net, arnd@arndb.de, fweimer@redhat.com, msuchanek@suse.com From: Dave Hansen Message-ID: <2a7737cf-a5ba-c814-fdc7-45b5cdd47376@intel.com> Date: Mon, 26 Feb 2018 13:16:16 -0800 MIME-Version: 1.0 In-Reply-To: <1519257138-23797-4-git-send-email-linuxram@us.ibm.com> Content-Type: text/plain; charset=utf-8 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 02/21/2018 03:52 PM, Ram Pai wrote: > Currently the architecture specific code is expected to > display the protection keys in smap for a given vma. > This can lead to redundant code and possibly to divergent > formats in which the key gets displayed. > > This patch changes the implementation. It displays the > pkey only if the architecture support pkeys, i.e > arch_pkeys_enabled() returns true. This patch > provides x86 implementation for arch_pkeys_enabled(). > > x86 arch_show_smap() function is not needed anymore. > Deleting it. This looks fine to me. Thanks for doing these, Ram. Reviewed-by: Dave Hansen