From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964794AbcFBJ2K (ORCPT ); Thu, 2 Jun 2016 05:28:10 -0400 Received: from smtprelay.synopsys.com ([198.182.60.111]:39351 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932421AbcFBJ1v convert rfc822-to-8bit (ORCPT ); Thu, 2 Jun 2016 05:27:51 -0400 From: Vineet Gupta To: Peter Zijlstra , "torvalds@linux-foundation.org" , "mingo@kernel.org" , "tglx@linutronix.de" , "will.deacon@arm.com" , "paulmck@linux.vnet.ibm.com" , "boqun.feng@gmail.com" , "waiman.long@hpe.com" , "fweisbec@gmail.com" CC: "linux-kernel@vger.kernel.org" , "linux-arch@vger.kernel.org" , "rth@twiddle.net" , "linux@arm.linux.org.uk" , "egtvedt@samfundet.no" , "realmz6@gmail.com" , "ysato@users.sourceforge.jp" , "rkuo@codeaurora.org" , "tony.luck@intel.com" , "geert@linux-m68k.org" , "james.hogan@imgtec.com" , "ralf@linux-mips.org" , "dhowells@redhat.com" , "jejb@parisc-linux.org" , "mpe@ellerman.id.au" , "schwidefsky@de.ibm.com" , "dalias@libc.org" , "davem@davemloft.net" , "cmetcalf@mellanox.com" , "jcmvbkbc@gmail.com" , "arnd@arndb.de" , "dbueso@suse.de" , "fengguang.wu@intel.com" Subject: Re: [PATCH -v2 00/33] implement atomic_fetch_$op Thread-Topic: [PATCH -v2 00/33] implement atomic_fetch_$op Thread-Index: AQHRuydZs3dX1HKhVEuYzTTT7t5hxA== Date: Thu, 2 Jun 2016 09:27:36 +0000 Message-ID: References: <20160531101925.702692792@infradead.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.13.184.19] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 31 May 2016 03:59 PM, Peter Zijlstra wrote: > Notes: > - arc asm/atomic.h is a bit of a mess after the eznps merge, I would > recommend a restructure or split of that file, but could not find > the will to do it. > - arc, metag and tile could convert to _relaxed. Yes that was bothering me too. The split is indeed in order. However good news is even w/o it I have decent cleanup as all the backoff retry code can now be removed. The hardware guys did their foo and production RTL with latest h/w release doesn't suffer from the scond livelock problem. I'd disabled the config option for some time and now the code can be removed as well. What's ur merge plan - are u going to rebase/respin once more so I can push those updates to Linus for 4.7-rc2. Or you could carry those ARC patches in ur tree - ahead of ur series. I'd much rather prefer the revert / cleanup before adding new code which extends the back off code only to be deleted later. What say you ? -Vineet