Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759975AbZJHWaE (ORCPT ); Thu, 8 Oct 2009 18:30:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757899AbZJHWaC (ORCPT ); Thu, 8 Oct 2009 18:30:02 -0400 Received: from casper.infradead.org ([85.118.1.10]:46137 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755075AbZJHWaA (ORCPT ); Thu, 8 Oct 2009 18:30:00 -0400 Subject: Re: [RFC][PATCH] kmap_atomic_push From: Peter Zijlstra To: David Howells Cc: Linus Torvalds , Ingo Molnar , Andrew Morton , "hugh.dickins" , lkml , linux-arch In-Reply-To: <13417.1255039961@redhat.com> References: <1255016123.17055.17.camel@laptop> <13417.1255039961@redhat.com> Content-Type: text/plain Date: Fri, 09 Oct 2009 00:29:02 +0200 Message-Id: <1255040942.17055.21.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 673 Lines: 16 On Thu, 2009-10-08 at 23:12 +0100, David Howells wrote: > Do we have any code that uses two slots and then calls more code that > ultimately requires further slots? In other words, do we need more than two > slots? I can think of code that does a lot more than that, suppose you have both KM_USER[01], get an interrupt that takes KM_IRQ[01], take an NMI that takes KM_NMI. Maybe we can stack the SOFTIRQ ones in as well ;-) -- 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/