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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 3AADAC43381 for ; Mon, 18 Mar 2019 14:41:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0875520835 for ; Mon, 18 Mar 2019 14:41:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727695AbfCROlS (ORCPT ); Mon, 18 Mar 2019 10:41:18 -0400 Received: from vmicros1.altlinux.org ([194.107.17.57]:56148 "EHLO vmicros1.altlinux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727365AbfCROlS (ORCPT ); Mon, 18 Mar 2019 10:41:18 -0400 Received: from mua.local.altlinux.org (mua.local.altlinux.org [192.168.1.14]) by vmicros1.altlinux.org (Postfix) with ESMTP id 3C2B072CC53; Mon, 18 Mar 2019 17:41:15 +0300 (MSK) Received: by mua.local.altlinux.org (Postfix, from userid 508) id 273227CC74C; Mon, 18 Mar 2019 17:41:15 +0300 (MSK) Date: Mon, 18 Mar 2019 17:41:15 +0300 From: "Dmitry V. Levin" To: Sudeep Holla Cc: x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Catalin Marinas , Will Deacon , Oleg Nesterov , Paul Mackerras , Michael Ellerman , Thomas Gleixner , Ingo Molnar , Richard Weinberger , jdike@addtoit.com, Steve Capper , Haibo Xu , Bin Lu , Andy Lutomirski Subject: Re: [PATCH v2 2/6] ptrace: introduce ptrace_syscall_enter to consolidate PTRACE_SYSEMU handling Message-ID: <20190318144115.GC27941@altlinux.org> References: <20190318104925.16600-1-sudeep.holla@arm.com> <20190318104925.16600-3-sudeep.holla@arm.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="V88s5gaDVPzZ0KCq" Content-Disposition: inline In-Reply-To: <20190318104925.16600-3-sudeep.holla@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --V88s5gaDVPzZ0KCq Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Mar 18, 2019 at 10:49:21AM +0000, Sudeep Holla wrote: > Currently each architecture handles PTRACE_SYSEMU in very similar way. > It's completely arch independent and can be handled in the code helping > to consolidate PTRACE_SYSEMU handling. >=20 > Let's introduce a hook 'ptrace_syscall_enter' that arch specific syscall > entry code can call. Sorry if I'm late for the party, but the new name looks confusing. If all it does is related to TIF_SYSCALL_EMU, why does it have a generic name 'ptrace_syscall_enter' without any hint of being specific to TIF_SYSCALL_EMU? --=20 ldv --V88s5gaDVPzZ0KCq Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIcBAEBCAAGBQJcj64KAAoJEAVFT+BVnCUIxpQP/jwIu65MqEkZ5bTrcyYeWRHb UfiJ2PNmJZ0oW8kKkFfTLL/KpldqRSotVfyVOCu41DfhC1LLouF4LHIlCVObRBj/ 2KRgYkPZbfl1dZ7ErIT6O+YxR5n7ygdP379A5DGIbz2gzm0X2q+I2CjFFIbbyBuQ N8rF1cijb1CCpoHaxDNWtNzTL9gV0fH+kKqNttarKFHV5EYPckR9bat31dktab74 74nI81OVtR3PYJMlWiR9HKS3JBVp9LLZ2wGMmELhwHG6nmEpgoYJwYy4wwlwf+6E DgYZOa2SWx/cdLrQpSF98UjSDd5qoHe1Aycg1cyfbx+Y5/VQBBi72Jb5EwAbyHtZ J0sD0bAueGNOiftyPRDaChSjfIygtUvWsdBjPOXyaz7HSwngussKpFHVopg5mEna ZwzSYFvTcd6mLgX05mKtlQFzYPWHTX/13Hcrtdc+61ABSVbVfkuft5/28H1tO7T5 W9Rwiahj2LS4Ud9IzHAPOvqfQywJSOy2djKvVbh9jDyjyXLh/H7V0ozP3aDLx6U1 VH39RmwNHTVRAlRcEEMtwKvtXUkNvI4aRMwsVfrzv+g2LSx0AgDzcXPRDgbIc5yO rP35A23jtqYdzjplzZjH+JbpRFS8xXoExHYHryXcA3CGGFpJ/9ztMnlkjAR0N0Y3 q0ftG5tIPuT0RCghzjIm =YZtt -----END PGP SIGNATURE----- --V88s5gaDVPzZ0KCq--