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=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_MUTT autolearn=ham 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 97BB7ECDE42 for ; Thu, 18 Oct 2018 02:37:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6642121470 for ; Thu, 18 Oct 2018 02:37:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6642121470 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=c-sky.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727488AbeJRKgT (ORCPT ); Thu, 18 Oct 2018 06:36:19 -0400 Received: from smtp2200-217.mail.aliyun.com ([121.197.200.217]:42257 "EHLO smtp2200-217.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727259AbeJRKgS (ORCPT ); Thu, 18 Oct 2018 06:36:18 -0400 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.1250269|-1;CH=green;FP=0|0|0|0|0|-1|-1|-1;HT=e02c03309;MF=ren_guo@c-sky.com;NM=1;PH=DS;RN=16;RT=16;SR=0;TI=SMTPD_---.D3ihYsN_1539830235; Received: from localhost(mailfrom:ren_guo@c-sky.com fp:SMTPD_---.D3ihYsN_1539830235) by smtp.aliyun-inc.com(10.147.41.187); Thu, 18 Oct 2018 10:37:16 +0800 Date: Thu, 18 Oct 2018 10:37:15 +0800 From: Guo Ren To: Arnd Bergmann Cc: Andrew Morton , Daniel Lezcano , David Miller , gregkh , Christoph Hellwig , Marc Zyngier , Mark Rutland , Peter Zijlstra , Rob Herring , Thomas Gleixner , Linux Kernel Mailing List , linux-arch , DTML , Rob Herring , c-sky_gcc_upstream@c-sky.com Subject: Re: [PATCH V9 08/21] csky: Process management and Signal Message-ID: <20181018023713.GC12027@guoren-Inspiron-7460> References: <9ae1d1609a49d976ae7659157507018b0c846423.1539655732.git.ren_guo@c-sky.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 17, 2018 at 05:11:00PM +0200, Arnd Bergmann wrote: > On Tue, Oct 16, 2018 at 5:01 AM Guo Ren wrote: > > > > This patch adds files related to task_switch, sigcontext, signal, > > fpu context switch. > > > > Signed-off-by: Guo Ren > > Cc: Arnd Bergmann > > --- > > Changelog: > > - abiv2/fpu.c: Userspace should never be sent NSIGXXX as a si_code. > > Use FPE_FLTUNK instead. > > - abiv2/fpu.c: Use force_sig_fault instead. > > I'm hesitant to provide a Reviewed-by: tag for this one, as I don't > understand the signal handling enough myself, and it's something > that should be reviewed properly because of the ABI implications. > > Maybe someone else can have a closer look at this? NSIGXXX and force_sig_fault modification is from Eric W. Biederman in PATCH V6 and I forget add: Cc: "Eric W. Biederman" Best Regards Guo Ren