From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [PATCH -v4 1/2] lib, Make gen_pool memory allocator lockless Date: Thu, 18 Nov 2010 09:57:54 +0100 Message-ID: <1290070674.2109.1303.camel@laptop> References: <1289868791-16658-1-git-send-email-ying.huang@intel.com> <1289868791-16658-2-git-send-email-ying.huang@intel.com> <20101116135038.fcaa90ca.akpm@linux-foundation.org> <1289960281.8719.1218.camel@yhuang-dev> <1289990458.2109.675.camel@laptop> <1289994796.2109.722.camel@laptop> <1290042887.3122.5.camel@yhuang-dev> <1290069275.2109.1290.camel@laptop> <20101118084341.GA23766@linux-sh.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Return-path: Received: from casper.infradead.org ([85.118.1.10]:42601 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755016Ab0KRI6A convert rfc822-to-8bit (ORCPT ); Thu, 18 Nov 2010 03:58:00 -0500 In-Reply-To: <20101118084341.GA23766@linux-sh.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Paul Mundt Cc: Huang Ying , huang ying , Andrew Morton , Len Brown , "linux-kernel@vger.kernel.org" , Andi Kleen , "linux-acpi@vger.kernel.org" , Linus Torvalds , Thomas Gleixner , Ingo Molnar , Mauro Carvalho Chehab On Thu, 2010-11-18 at 17:43 +0900, Paul Mundt wrote: > > The only cause for concern really is SH-2A which supports hardware > breakpoints (and perf events by proxy) but doesn't contain a PMU, and > only uses an IRQs disabled cmpxchg for the moment. It also supports > ftrace. I suppose I'll need to come up with a hack for this case.. Well, as long as it doesn't actually have NMIs it doesn't matter.. If it does and they're actually used by linux, then yes that needs fixing.