From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752811AbbGYEcZ (ORCPT ); Sat, 25 Jul 2015 00:32:25 -0400 Received: from mail.skyhub.de ([78.46.96.112]:46489 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750784AbbGYEcY (ORCPT ); Sat, 25 Jul 2015 00:32:24 -0400 Date: Sat, 25 Jul 2015 06:32:18 +0200 From: Borislav Petkov To: Andy Lutomirski Cc: Andy Lutomirski , X86 ML , "linux-kernel@vger.kernel.org" , Brian Gerst , Steven Rostedt , Willy Tarreau , Thomas Gleixner , Peter Zijlstra , Linus Torvalds Subject: Re: [PATCH 1/3] x86/entry/64: Refactor IRQ stacks and make then NMI-safe Message-ID: <20150725043218.GD32606@nazgul.tnic> References: <040374ca9800988a0ed35ea9ddeb4a762c1371fa.1437690860.git.luto@kernel.org> <20150724102503.GA19090@nazgul.tnic> <20150725041656.GB32606@nazgul.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 24, 2015 at 09:28:47PM -0700, Andy Lutomirski wrote: > Yeah, I'm going to submit v2 with the simple approach. I admit I'm > rather fond of xadd as a way to switch rsp and set a flag at the same > time, though :) I know you are. But people will rip your head out if you added 60 cycles to the IRQ path. :-) -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. --