Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752817AbaGaQ5c (ORCPT ); Thu, 31 Jul 2014 12:57:32 -0400 Received: from terminus.zytor.com ([198.137.202.10]:60449 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751349AbaGaQ5a (ORCPT ); Thu, 31 Jul 2014 12:57:30 -0400 Message-ID: <53DA7550.40905@zytor.com> Date: Thu, 31 Jul 2014 09:56:48 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0 MIME-Version: 1.0 To: Andy Lutomirski , Frederic Weisbecker CC: Oleg Nesterov , linux-arch , X86 ML , LSM List , Linux MIPS Mailing List , "linux-arm-kernel@lists.infradead.org" , Alexei Starovoitov , Will Drewry , Kees Cook , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v4 0/5] x86: two-phase syscall tracing and seccomp fastpath References: <20140729192056.GA6308@redhat.com> <20140730165940.GB27954@localhost.localdomain> In-Reply-To: X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/30/2014 10:25 AM, Andy Lutomirski wrote: > > And yet x86_64 has this code implemented in assembly even in the > slowpath. Go figure. > There is way too much assembly in entry_64.S probably because things have been grafted on, ahem, "organically". It is darn nigh impossible to even remotely figure out what goes on in that file. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/