From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753569Ab1I1I0O (ORCPT ); Wed, 28 Sep 2011 04:26:14 -0400 Received: from fallback.mail.elte.hu ([157.181.151.13]:33556 "EHLO fallback.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753490Ab1I1I0K (ORCPT ); Wed, 28 Sep 2011 04:26:10 -0400 Date: Wed, 28 Sep 2011 10:24:30 +0200 From: Ingo Molnar To: Jeremy Fitzhardinge Cc: "H. Peter Anvin" , the arch/x86 maintainers , Linux Kernel Mailing List , "xen-devel@lists.xensource.com" Subject: Re: Could you reinstate ticketlock cleanups in tip.git Message-ID: <20110928082430.GA29264@elte.hu> References: <20110928063115.GA24510@elte.hu> <4E82C169.8060803@goop.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4E82C169.8060803@goop.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-ELTE-SpamScore: -1.9 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.9 required=5.9 tests=AWL,BAYES_00 autolearn=no SpamAssassin version=3.3.1 -2.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.1 AWL AWL: From: address is in the auto white-list Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Jeremy Fitzhardinge wrote: > On 09/27/2011 11:31 PM, Ingo Molnar wrote: > > * Thomas Gleixner wrote: > > > >> Hi Thomas, > >> > >> Could you reinstate the ticketlock cleanup series in tip.git (I think it > >> was in x86/spinlocks) from > >> git://github.com/jsgf/linux-xen.git upstream/ticketlock-cleanup > >> > >> This branch is the final result of all the discussions and revisions and > >> is ready for the next merge window. It's the one that's been in > >> linux-next for a couple of weeks (at least), and won't cause any > >> conflicts there. > >> > >> Or if you prefer I can submit it myself for next merge window. > >> > >> Thanks, > >> J > > I'd prefer if this went via x86/spinlocks. Could you please send a > > proper pull request with diffstat, shortlog, etc? > > > > Sure, here you are: > > The following changes since commit c6a389f123b9f68d605bb7e0f9b32ec1e3e14132: > > Linux 3.1-rc4 (2011-08-28 21:16:01 -0700) > > are available in the git repository at: > git://github.com/jsgf/linux-xen upstream/ticketlock-cleanup > (commit 4a7f340c6a75ec5fca23d9c80a59f3f28cc4a61e) > > Jeremy Fitzhardinge (12): > x86, cmpxchg: has LOCK_PREFIX > x86, cmpxchg: Move 32-bit __cmpxchg_wrong_size to match 64 bit. > x86, cmpxchg: Move 64-bit set64_bit() to match 32-bit > x86, cmpxchg: Unify cmpxchg into cmpxchg.h > x86: Add xadd helper macro > x86: Use xadd helper more widely > x86, ticketlock: Clean up types and accessors > x86, ticketlock: Convert spin loop to C > x86, ticketlock: Convert __ticket_spin_lock to use xadd() > x86, ticketlock: Make __ticket_spin_trylock common > x86, cmpxchg: Use __compiletime_error() to make usage messages a bit nicer > x86, ticketlock: remove obsolete comment > > arch/x86/include/asm/atomic.h | 8 +- > arch/x86/include/asm/atomic64_64.h | 6 +- > arch/x86/include/asm/cmpxchg.h | 205 +++++++++++++++++++++++++++++++++ > arch/x86/include/asm/cmpxchg_32.h | 114 ------------------ > arch/x86/include/asm/cmpxchg_64.h | 131 --------------------- > arch/x86/include/asm/rwsem.h | 8 +- > arch/x86/include/asm/spinlock.h | 114 +++++-------------- > arch/x86/include/asm/spinlock_types.h | 22 +++- > arch/x86/include/asm/uv/uv_bau.h | 6 +- > 9 files changed, 257 insertions(+), 357 deletions(-) Pulled, thanks Jeremy! Ingo