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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,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 230B2C43219 for ; Thu, 2 May 2019 16:13:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F181520652 for ; Thu, 2 May 2019 16:13:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726479AbfEBQNl (ORCPT ); Thu, 2 May 2019 12:13:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41216 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726321AbfEBQNl (ORCPT ); Thu, 2 May 2019 12:13:41 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 32A6D3151C4C; Thu, 2 May 2019 16:13:38 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.43.17.159]) by smtp.corp.redhat.com (Postfix) with SMTP id 3C23F60BFC; Thu, 2 May 2019 16:13:32 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Thu, 2 May 2019 18:13:36 +0200 (CEST) Date: Thu, 2 May 2019 18:13:30 +0200 From: Oleg Nesterov To: Sudeep Holla Cc: x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Catalin Marinas , Will Deacon , Richard Weinberger , jdike@addtoit.com, Steve Capper , Haibo Xu , Bin Lu , Andy Lutomirski , Paul Mackerras , Michael Ellerman , Thomas Gleixner , Ingo Molnar Subject: Re: [PATCH v3 1/4] ptrace: move clearing of TIF_SYSCALL_EMU flag to core Message-ID: <20190502161329.GE7323@redhat.com> References: <20190430170520.29470-1-sudeep.holla@arm.com> <20190430170520.29470-2-sudeep.holla@arm.com> <20190501161330.GD30235@redhat.com> <20190501161752.GA12498@e107155-lin> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190501161752.GA12498@e107155-lin> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Thu, 02 May 2019 16:13:41 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/01, Sudeep Holla wrote: > > On Wed, May 01, 2019 at 06:13:30PM +0200, Oleg Nesterov wrote: > > On 04/30, Sudeep Holla wrote: > > > > > > While the TIF_SYSCALL_EMU is set in ptrace_resume independent of any > > > architecture, currently only powerpc and x86 unset the TIF_SYSCALL_EMU > > > flag in ptrace_disable which gets called from ptrace_detach. > > > > > > Let's move the clearing of TIF_SYSCALL_EMU flag to __ptrace_unlink > > > which gets executed from ptrace_detach and also keep it along with > > > or close to clearing of TIF_SYSCALL_TRACE. > > > > > > Cc: Oleg Nesterov > > > Cc: Paul Mackerras > > > Cc: Michael Ellerman > > > Cc: Thomas Gleixner > > > Cc: Ingo Molnar > > > Signed-off-by: Sudeep Holla > > > > Acked-by: Oleg Nesterov > > > > Since 1/4 and 2/4 are completely independent of arm64 changes in 3&4/4, > I prefer you take these via your tree. Sorry Sudeep, I can't do this, I need to reanimate my account on kernel.org. Oleg.