From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751750AbdJRRFJ (ORCPT ); Wed, 18 Oct 2017 13:05:09 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:33949 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750954AbdJRRFH (ORCPT ); Wed, 18 Oct 2017 13:05:07 -0400 Subject: Re: [PATCH v12 08/11] arm64/kasan: add and use kasan_map_populate() To: Andrey Ryabinin , linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-arm-kernel@lists.infradead.org, x86@kernel.org, kasan-dev@googlegroups.com, borntraeger@de.ibm.com, heiko.carstens@de.ibm.com, davem@davemloft.net, willy@infradead.org, mhocko@kernel.org, ard.biesheuvel@linaro.org, mark.rutland@arm.com, will.deacon@arm.com, catalin.marinas@arm.com, sam@ravnborg.org, mgorman@techsingularity.net, akpm@linux-foundation.org, steven.sistare@oracle.com, daniel.m.jordan@oracle.com, bob.picco@oracle.com References: <20171013173214.27300-1-pasha.tatashin@oracle.com> <20171013173214.27300-9-pasha.tatashin@oracle.com> <0ae84532-8dcb-10aa-9d69-79d7025b089e@virtuozzo.com> From: Pavel Tatashin Message-ID: Date: Wed, 18 Oct 2017 13:03:10 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <0ae84532-8dcb-10aa-9d69-79d7025b089e@virtuozzo.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrey, I asked Will, about it, and he preferred to have this patched added to the end of my series instead of replacing "arm64/kasan: add and use kasan_map_populate()". In addition, Will's patch stops using large pages for kasan memory, and thus might add some regression in which case it is easier to revert just that patch instead of the whole series. It is unlikely that regression is going to be detectable, because kasan by itself makes system quiet slow already. Pasha