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McKenney" To: Alan Stern Cc: Will Deacon , Andrea Parri , LKMM Maintainers -- Akira Yokosawa , Boqun Feng , David Howells , Jade Alglave , Luc Maranget , Nicholas Piggin , Peter Zijlstra , Kernel development list Subject: Re: [PATCH 2/2] tools/memory-model: Add write ordering by release-acquire and by locks Reply-To: paulmck@linux.vnet.ibm.com References: <20180704121354.GC26941@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-GCONF: 00 x-cbid: 18070515-0064-0000-0000-000003257E83 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009313; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01056955; UDB=6.00542240; IPR=6.00834875; MB=3.00022011; MTD=3.00000008; XFM=3.00000015; UTC=2018-07-05 15:29:45 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18070515-0065-0000-0000-000039D46F1C Message-Id: <20180705153157.GP3593@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-07-05_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=721 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807050176 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 05, 2018 at 10:23:01AM -0400, Alan Stern wrote: > On Wed, 4 Jul 2018, Will Deacon wrote: > > > On Wed, Jul 04, 2018 at 04:28:52AM -0700, Paul E. McKenney wrote: > > > On Tue, Jul 03, 2018 at 01:28:17PM -0400, Alan Stern wrote: > > > > PS: Paul, is the patch which introduced rel-rf-acq-po currently present > > > > in any of your branches? I couldn't find it. > > > > > > It is not, I will add it back in. I misinterpreted your "drop this > > > patch" on 2/2 as "drop both patches". Please accept my apologies! > > > > > > Just to double-check, the patch below should be added, correct? > > > > Hang on, I'm not sure this patch is quite right either. We need to reach > > agreement on whether or not we want to support native RCpc acquire/release > > instructions before we work out what to do with this relation. > > Agreed. Paul, please leave both patches reverted. I will send > replacements. Looking forward to seeing them! Thanx, Paul