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Wed, 9 Sep 2020 16:12:14 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 23E2111C054; Wed, 9 Sep 2020 16:12:14 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E726D11C052; Wed, 9 Sep 2020 16:12:12 +0000 (GMT) Received: from thinkpad (unknown [9.171.79.102]) by d06av25.portsmouth.uk.ibm.com (Postfix) with SMTP; Wed, 9 Sep 2020 16:12:12 +0000 (GMT) Date: Wed, 9 Sep 2020 18:12:11 +0200 From: Gerald Schaefer To: Christophe Leroy Cc: Mike Rapoport , Peter Zijlstra , Dave Hansen , linux-mm , Paul Mackerras , linux-sparc , Alexander Gordeev , Claudio Imbrenda , Will Deacon , linux-arch , linux-s390 , Vasily Gorbik , Christian Borntraeger , Richard Weinberger , linux-x86 , Russell King , Jason Gunthorpe , Ingo Molnar , Catalin Marinas , Andrey Ryabinin , Heiko Carstens , Arnd Bergmann , John Hubbard , Jeff Dike , linux-um , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , linux-arm , linux-power , LKML , Andrew Morton , Linus Torvalds Subject: Re: [RFC PATCH v2 0/3] mm/gup: fix gup_fast with dynamic page table folding Message-ID: <20200909181211.1cad8d28@thinkpad> In-Reply-To: <20200908193650.1c1511d0@thinkpad> References: <20200907180058.64880-1-gerald.schaefer@linux.ibm.com> <20200907201256.GC1976319@kernel.org> <9bde9857-fdfd-e384-ea27-a14e5a06f1e6@csgroup.eu> <20200908193650.1c1511d0@thinkpad> X-Mailer: Claws Mail 3.17.6 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-09-09_09:2020-09-09,2020-09-09 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 clxscore=1015 impostorscore=0 mlxlogscore=999 mlxscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 adultscore=0 malwarescore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009090139 X-Rspamd-Queue-Id: 2FB2816A046 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, 8 Sep 2020 19:36:50 +0200 Gerald Schaefer wrote: [..] > > It seems now that the generalization is very well accepted so far, > apart from some apparent issues on arm. Also, merging 2 + 3 and > putting them first seems to be acceptable, so we could do that for > v3, if there are no objections. > > Of course, we first need to address the few remaining issues for > arm(32?), which do look quite confusing to me so far. BTW, sorry for > the compile error with patch 3, I guess we did the cross-compile only > for 1 + 2 applied, to see the bloat-o-meter changes. But I guess > patch 3 already proved its usefulness by that :-) Umm, replace "arm" with "power", sorry. No issues on arm so far, but also no ack I think. Thanks to Christophe for the power change, and to Mike for volunteering for some cross compilation and cross-arch testing. Will send v3 with merged and re-ordered patches after some more testing.