From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751732Ab1HXVqb (ORCPT ); Wed, 24 Aug 2011 17:46:31 -0400 Received: from claw.goop.org ([74.207.240.146]:53628 "EHLO claw.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750827Ab1HXVqa (ORCPT ); Wed, 24 Aug 2011 17:46:30 -0400 Message-ID: <4E557132.2020109@goop.org> Date: Wed, 24 Aug 2011 14:46:26 -0700 From: Jeremy Fitzhardinge User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0) Gecko/20110816 Thunderbird/6.0 MIME-Version: 1.0 To: "H. Peter Anvin" CC: Linus Torvalds , Peter Zijlstra , Ingo Molnar , the arch/x86 maintainers , Linux Kernel Mailing List , Nick Piggin , Jeremy Fitzhardinge Subject: Re: [PATCH 00/18] x86: Ticket lock + cmpxchg cleanup References: In-Reply-To: X-Enigmail-Version: 1.3.1 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/24/2011 02:36 PM, Jeremy Fitzhardinge wrote: > From: Jeremy Fitzhardinge > > Hi all, > > Another spin of the cmpxchg/xadd/ticketlock cleanups. > > Changes from last post: > - reorder all the cmpxchg/xadd patches first > - change xadd to return prev rather than implicitly update arg > - recast ticketlock cleanup in terms of xadd > - drop conversion of unlock to C > > This is also available at: > git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git upstream/ticketlock-cleanup > > arch/x86/include/asm/atomic.h | 8 +- > arch/x86/include/asm/atomic64_64.h | 6 +- > arch/x86/include/asm/cacheflush.h | 2 +- > arch/x86/include/asm/cmpxchg.h | 232 +++++++++++++++++++++++++++++++++ > arch/x86/include/asm/cmpxchg_32.h | 128 ++---------------- > arch/x86/include/asm/cmpxchg_64.h | 131 ------------------- > arch/x86/include/asm/rwsem.h | 15 +-- > arch/x86/include/asm/spinlock.h | 110 ++++------------ > arch/x86/include/asm/spinlock_types.h | 22 +++- > arch/x86/include/asm/uv/uv_bau.h | 6 +- > arch/x86/kernel/acpi/boot.c | 10 +- > arch/x86/kernel/cpu/mcheck/mce.c | 2 +- > arch/x86/xen/p2m.c | 10 +- > 13 files changed, 311 insertions(+), 371 deletions(-) > > Thanks, > J Uh, that's 00/12, and ignore the below; that's left over from the previous posting. J > > Jeremy Fitzhardinge (18): > x86/ticketlock: clean up types and accessors > x86/ticketlock: convert spin loop to C > x86/ticketlock: Use C for __ticket_spin_unlock > x86/ticketlock: make large and small ticket versions of spin_lock the > same > x86/ticketlock: make __ticket_spin_lock common > x86/ticketlock: make __ticket_spin_trylock common > x86: add xadd helper macro > x86/ticketlock: use xadd helper > x86/cmpxchg: linux/alternative.h 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 cmpxchg_flag() variant > x86/ticketlocks: use cmpxchg_flag for trylock > x86: use cmpxchg_flag() where applicable > x86: report xchg/cmpxchg/xadd usage errors consistently > x86: add local and sync variants of xadd > x86: use xadd helper more widely > > arch/x86/include/asm/atomic.h | 4 +- > arch/x86/include/asm/atomic64_64.h | 4 +- > arch/x86/include/asm/cacheflush.h | 2 +- > arch/x86/include/asm/cmpxchg.h | 223 +++++++++++++++++++++++++++++++++ > arch/x86/include/asm/cmpxchg_32.h | 128 ++----------------- > arch/x86/include/asm/cmpxchg_64.h | 131 ------------------- > arch/x86/include/asm/rwsem.h | 11 +-- > arch/x86/include/asm/spinlock.h | 140 +++++++-------------- > arch/x86/include/asm/spinlock_types.h | 22 +++- > arch/x86/include/asm/uv/uv_bau.h | 4 +- > arch/x86/kernel/acpi/boot.c | 10 +- > arch/x86/kernel/cpu/mcheck/mce.c | 2 +- > arch/x86/xen/p2m.c | 10 +- > 13 files changed, 321 insertions(+), 370 deletions(-) >