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 X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94431C55179 for ; Fri, 23 Oct 2020 11:58:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BA0924631 for ; Fri, 23 Oct 2020 11:58:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S463310AbgJWL6h (ORCPT ); Fri, 23 Oct 2020 07:58:37 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:8417 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S463298AbgJWL6U (ORCPT ); Fri, 23 Oct 2020 07:58:20 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4CHjRV0CCKz9v03C; Fri, 23 Oct 2020 13:58:14 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id 7G-FT5rRhz1r; Fri, 23 Oct 2020 13:58:13 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4CHjRT6NvJz9v036; Fri, 23 Oct 2020 13:58:13 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 4B5098B869; Fri, 23 Oct 2020 13:58:15 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 1m4yl6SK3FoB; Fri, 23 Oct 2020 13:58:15 +0200 (CEST) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 73E308B85E; Fri, 23 Oct 2020 13:58:14 +0200 (CEST) Subject: Re: [PATCH v8 2/8] powerpc/vdso: Remove __kernel_datapage_offset and simplify __get_datapage() To: Will Deacon Cc: Dmitry Safonov <0x7f454c46@gmail.com>, Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , nathanl@linux.ibm.com, linux-arch , Arnd Bergmann , open list , Andy Lutomirski , Thomas Gleixner , Vincenzo Frascino , linuxppc-dev@lists.ozlabs.org References: <87wo34tbas.fsf@mpe.ellerman.id.au> <2f9b7d02-9e2f-4724-2608-c5573f6507a2@csgroup.eu> <6862421a-5a14-2e38-b825-e39e6ad3d51d@csgroup.eu> <87imd5h5kb.fsf@mpe.ellerman.id.au> <87a6yf34aj.fsf@mpe.ellerman.id.au> <20200921112638.GC2139@willie-the-truck> <542145eb-7d90-0444-867e-c9cbb6bdd8e3@gmail.com> <20201023112514.GE20933@willie-the-truck> From: Christophe Leroy Message-ID: <284cacf4-9811-4b67-385c-2783a7cd9b31@csgroup.eu> Date: Fri, 23 Oct 2020 13:57:47 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.1 MIME-Version: 1.0 In-Reply-To: <20201023112514.GE20933@willie-the-truck> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le 23/10/2020 à 13:25, Will Deacon a écrit : > On Fri, Oct 23, 2020 at 01:22:04PM +0200, Christophe Leroy wrote: >> Hi Dmitry, >> >> Le 28/09/2020 à 17:08, Dmitry Safonov a écrit : >>> On 9/27/20 8:43 AM, Christophe Leroy wrote: >>>> >>>> >>>> Le 21/09/2020 à 13:26, Will Deacon a écrit : >>>>> On Fri, Aug 28, 2020 at 12:14:28PM +1000, Michael Ellerman wrote: >>>>>> Dmitry Safonov <0x7f454c46@gmail.com> writes: >>> [..] >>>>>>> I'll cook a patch for vm_special_mapping if you don't mind :-) >>>>>> >>>>>> That would be great, thanks! >>>>> >>>>> I lost track of this one. Is there a patch kicking around to resolve >>>>> this, >>>>> or is the segfault expected behaviour? >>>>> >>>> >>>> IIUC dmitry said he will cook a patch. I have not seen any patch yet. >>> >>> Yes, sorry about the delay - I was a bit busy with xfrm patches. >>> >>> I'll send patches for .close() this week, working on them now. >> >> I haven't seen the patches, did you sent them out finally ? > > I think it's this series: > > https://lore.kernel.org/r/20201013013416.390574-1-dima@arista.com > > but they look really invasive to me, so I may cook a small hack for arm64 > in the meantine / for stable. > Not sure we are talking about the same thing. I can't see any new .close function added to vm_special_mapping in order to replace arch_unmap() hook. Christophe 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 X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68B20C4363A for ; Fri, 23 Oct 2020 12:01:21 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5CB2A20EDD for ; Fri, 23 Oct 2020 12:01:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5CB2A20EDD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4CHjW03dr7zDqxf for ; Fri, 23 Oct 2020 23:01:16 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (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 4CHjRj07QFzDqss for ; Fri, 23 Oct 2020 22:58:20 +1100 (AEDT) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4CHjRV0CCKz9v03C; Fri, 23 Oct 2020 13:58:14 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id 7G-FT5rRhz1r; Fri, 23 Oct 2020 13:58:13 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4CHjRT6NvJz9v036; Fri, 23 Oct 2020 13:58:13 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 4B5098B869; Fri, 23 Oct 2020 13:58:15 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 1m4yl6SK3FoB; Fri, 23 Oct 2020 13:58:15 +0200 (CEST) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 73E308B85E; Fri, 23 Oct 2020 13:58:14 +0200 (CEST) Subject: Re: [PATCH v8 2/8] powerpc/vdso: Remove __kernel_datapage_offset and simplify __get_datapage() To: Will Deacon References: <87wo34tbas.fsf@mpe.ellerman.id.au> <2f9b7d02-9e2f-4724-2608-c5573f6507a2@csgroup.eu> <6862421a-5a14-2e38-b825-e39e6ad3d51d@csgroup.eu> <87imd5h5kb.fsf@mpe.ellerman.id.au> <87a6yf34aj.fsf@mpe.ellerman.id.au> <20200921112638.GC2139@willie-the-truck> <542145eb-7d90-0444-867e-c9cbb6bdd8e3@gmail.com> <20201023112514.GE20933@willie-the-truck> From: Christophe Leroy Message-ID: <284cacf4-9811-4b67-385c-2783a7cd9b31@csgroup.eu> Date: Fri, 23 Oct 2020 13:57:47 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.1 MIME-Version: 1.0 In-Reply-To: <20201023112514.GE20933@willie-the-truck> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nathanl@linux.ibm.com, linux-arch , Arnd Bergmann , Dmitry Safonov <0x7f454c46@gmail.com>, open list , Paul Mackerras , Andy Lutomirski , Thomas Gleixner , Vincenzo Frascino , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Le 23/10/2020 à 13:25, Will Deacon a écrit : > On Fri, Oct 23, 2020 at 01:22:04PM +0200, Christophe Leroy wrote: >> Hi Dmitry, >> >> Le 28/09/2020 à 17:08, Dmitry Safonov a écrit : >>> On 9/27/20 8:43 AM, Christophe Leroy wrote: >>>> >>>> >>>> Le 21/09/2020 à 13:26, Will Deacon a écrit : >>>>> On Fri, Aug 28, 2020 at 12:14:28PM +1000, Michael Ellerman wrote: >>>>>> Dmitry Safonov <0x7f454c46@gmail.com> writes: >>> [..] >>>>>>> I'll cook a patch for vm_special_mapping if you don't mind :-) >>>>>> >>>>>> That would be great, thanks! >>>>> >>>>> I lost track of this one. Is there a patch kicking around to resolve >>>>> this, >>>>> or is the segfault expected behaviour? >>>>> >>>> >>>> IIUC dmitry said he will cook a patch. I have not seen any patch yet. >>> >>> Yes, sorry about the delay - I was a bit busy with xfrm patches. >>> >>> I'll send patches for .close() this week, working on them now. >> >> I haven't seen the patches, did you sent them out finally ? > > I think it's this series: > > https://lore.kernel.org/r/20201013013416.390574-1-dima@arista.com > > but they look really invasive to me, so I may cook a small hack for arm64 > in the meantine / for stable. > Not sure we are talking about the same thing. I can't see any new .close function added to vm_special_mapping in order to replace arch_unmap() hook. Christophe