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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLrrX-00049H-Ty; Wed, 01 May 2019 16:13:39 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLrrV-00048u-3B for linux-arm-kernel@lists.infradead.org; Wed, 01 May 2019 16:13:38 +0000 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9B3D4309175F; Wed, 1 May 2019 16:13:36 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.43.17.159]) by smtp.corp.redhat.com (Postfix) with SMTP id 7519A100200A; Wed, 1 May 2019 16:13:33 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Wed, 1 May 2019 18:13:34 +0200 (CEST) Date: Wed, 1 May 2019 18:13:30 +0200 From: Oleg Nesterov To: Sudeep Holla Subject: Re: [PATCH v3 1/4] ptrace: move clearing of TIF_SYSCALL_EMU flag to core Message-ID: <20190501161330.GD30235@redhat.com> References: <20190430170520.29470-1-sudeep.holla@arm.com> <20190430170520.29470-2-sudeep.holla@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190430170520.29470-2-sudeep.holla@arm.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Wed, 01 May 2019 16:13:36 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190501_091337_155930_D1FC2537 X-CRM114-Status: GOOD ( 13.69 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Haibo Xu , Steve Capper , Catalin Marinas , jdike@addtoit.com, x86@kernel.org, Will Deacon , linux-kernel@vger.kernel.org, Bin Lu , Ingo Molnar , Paul Mackerras , Michael Ellerman , Andy Lutomirski , Richard Weinberger , Thomas Gleixner , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel