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Thu, 15 Oct 2026 11:49:58 +0000 Received: from PA6PR08MB10708.eurprd08.prod.outlook.com ([fe80::1999:c6db:dc55:494a]) by PA6PR08MB10708.eurprd08.prod.outlook.com ([fe80::1999:c6db:dc55:494a%5]) with mapi id 15.21.0546.006; Thu, 15 Oct 2026 11:49:57 +0000 Message-ID: <3cb6df0a-2606-486b-9667-3952cc631759@virtuozzo.com> Date: Thu, 15 Oct 2026 13:49:55 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/2] mm/huge_memory: fix the copy of special PMDs at fork To: Lance Yang , Zi Yan Cc: Andrew Morton , David Hildenbrand , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Usama Arif , Kiryl Shutsemau , Peter Xu , Alex Williamson , kvm@vger.kernel.org, =?UTF-8?Q?Lo=C3=AFc_Molinari?= , dri-devel@lists.freedesktop.org, Madhavan Srinivasan , "Ritesh Harjani (IBM)" , linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Jason Gunthorpe , stable@vger.kernel.org, Sashiko References: <20261014-b4-prep-vstor-149847-copy_huge_pmd-recheck-special-pmd-v3-0-85eaec8417f6@virtuozzo.com> <73f0dafd-5b26-42b9-a77b-90c32976942f@linux.dev> Content-Language: en-US, ru, sr From: Konstantin Khorenko In-Reply-To: <73f0dafd-5b26-42b9-a77b-90c32976942f@linux.dev> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: AS4P190CA0029.EURP190.PROD.OUTLOOK.COM (2603:10a6:20b:5d0::19) To PA6PR08MB10708.eurprd08.prod.outlook.com (2603:10a6:102:3c7::20) X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , 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=?utf-8?B?S2tocG1wWkthYXpHMzVESktGL3U2bzBjd1RKTGhhTnplTUM1NXV4QT09?= X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-Network-Message-Id: 41f4e592-ea0a-4984-8612-08df2ab26fbc X-MS-Exchange-CrossTenant-AuthSource: PA6PR08MB10708.eurprd08.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Oct 2026 11:49:57.8307 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 5J1ycRV1BGsx8AO3bWHF61tBNlk3k9lWh9ldJ4ruF0yGUSrc0rChLSZ74CEiVP2vhqy3C4pyL1gEcd1Qsm2Hng== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU0PR08MB9876 On 10/14/26 18:04, Lance Yang wrote: > On 2026/10/14 23:57, Zi Yan wrote: >> On 14 Oct 2026, at 11:46, Konstantin Khorenko wrote: >> >> >> >>> Signed-off-by: Konstantin Khorenko >>> --- >>> Changes in v3: >>> - Patch 1: recheck the PMD with pmd_none(), as only a zap can change >>> it and a zap leaves it none (Lance Yang). >>> - Link to v2: https://patch.msgid.link/20261014-b4-prep-vstor-149847-copy_huge_pmd-recheck-special-pmd-v2-0-e1548488fa68@virtuozzo.com >>> >>> Changes in v2: >>> - Add patch 2, the page table deposit for ppc64 hash, reported by >>> Sashiko. >>> - Patch 1: name panthor instead of drm_gem_shmem as the driver whose >>> stale child mapping reaches freed pages: drm_gem_shmem keeps the >>> pages of a purged object until the last mapping goes away. >>> - Link to v1: https://patch.msgid.link/20261014-b4-prep-vstor-149847-copy_huge_pmd-recheck-special-pmd-v1-1-d225c60bc316@virtuozzo.com >>> >> >> Please stop sending new versions of a patchset repeatedly. >> Wait at least a day for others to catch up. > > +1 > > Please slow down a bit. You don't need to respin every few > hours. That just makes everyone start over ... > > Post a version, wait for feedback, then revise. Twice a week > is plenty, honestly :) Guys, you are awesome. :) Trying myself to do the very best i can and yes, "too many and too fast" sometime does not leads to the "very best" result. Set myself a hard upper limit to 1 rework per week. :) Have a nice day and thank you for looking into this! Cheers, Konstantin