From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9DD9DCE7A8B for ; Fri, 14 Nov 2025 08:36:22 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id EA0088E0003; Fri, 14 Nov 2025 03:36:21 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E50828E0002; Fri, 14 Nov 2025 03:36:21 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D677C8E0003; Fri, 14 Nov 2025 03:36:21 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id BFE248E0002 for ; Fri, 14 Nov 2025 03:36:21 -0500 (EST) Received: from smtpin07.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 5B629B802A for ; Fri, 14 Nov 2025 08:36:21 +0000 (UTC) X-FDA: 84108555762.07.69E0400 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf17.hostedemail.com (Postfix) with ESMTP id A1BB24000F for ; Fri, 14 Nov 2025 08:36:19 +0000 (UTC) Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=F2Owpah+; spf=pass (imf17.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1763109379; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=R0Mlvum8jZR6EKzyOx5npEmTROCPH5+4gCuSMdmM3qM=; b=hNIyKUt1xjmzXgJJovuRlPrrdMx4bZUK+wey+BPU5e0tN9CYUmY61oGDMKiGHEpGGL6mmn KwV7/MIZxbyuomF00fBS2hMbH/LBK7mnyikLuwkStIoS9eBcOch06gfK3zTQLea0dhCDgR 5SpTNKV9uW2T6yFCoH5aceylyAbQ1k0= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=F2Owpah+; spf=pass (imf17.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1763109379; a=rsa-sha256; cv=none; b=ZFDaLpCbSLCVhNnJHqXlYiPQ6+6fjisgp/+iASfp6laetcRGNFkfgCQsTwuzbB6TN1nZ/b BE3OJKPDS1ZqYl0eFZE4rVMh5k3USxfEjevYDA8ggS0WKykMPPZi6kIEaT9/66TQDjqL+J 42AymWRosn+zKo7DmCVUxOMbgSBVBE8= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id E834A60163; Fri, 14 Nov 2025 08:36:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2FD9EC4CEF8; Fri, 14 Nov 2025 08:36:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763109378; bh=eWGYBsLmz/5LRmgat5KjGwo91+k4m6JF84j9BzT5HWE=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=F2Owpah+gT1P6oR4hero/YLaRllSRs7/IqzcWjr8T6aARmKxVkvyShYWYDdo42U09 I0tb8gvsHii5Z1jLRwgYMVs50vNUqptG5dKxPC9vcxPQg2pZG1p3TAjJ2/jhwYtuQ5 XbB6k3q6lLNhalnzHcv+m6fRwGqipdvwZ5RTzt9IoLYeQHATZNbll87iSb0q0sobVe icktECJLCoQY8NUs9bpqyPXgrzo3agn715qYlWap3mK9KzQ0xfVmOdtqisTZ9L389N KLCbRBEH3ZgdTT8voj9FzXxCxBT9xNVcd/CgNy4jFUL8qlhb/yv0gHAxBfaLbH7oZb sQLWG/OrVaYyQ== Message-ID: <5b481d76-638d-46d4-ad98-5508fc8b715e@kernel.org> Date: Fri, 14 Nov 2025 09:36:09 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm/huge_memory.c: introduce folio_split_unmapped To: Balbir Singh , linux-kernel@vger.kernel.org, linux-mm@kvack.org, dri-devel@lists.freedesktop.org Cc: Andrew Morton , Zi Yan , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Oscar Salvador , Lorenzo Stoakes , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lyude Paul , Danilo Krummrich , David Airlie , Simona Vetter , Ralph Campbell , =?UTF-8?Q?Mika_Penttil=C3=A4?= , Matthew Brost , Francois Dugast References: <20251114012228.2634882-1-balbirs@nvidia.com> From: "David Hildenbrand (Red Hat)" Content-Language: en-US In-Reply-To: <20251114012228.2634882-1-balbirs@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: A1BB24000F X-Stat-Signature: o3eu7xugmjpz5fpsnmt81i6xqba1fj4e X-Rspam-User: X-HE-Tag: 1763109379-367109 X-HE-Meta: U2FsdGVkX18M13w207Ls+xQb2QVZ/z5f4+EkwAZQ8d8uwxd7LgRg0NB7x6yo8aJIAkiKIWIpGX2jmwwwx5bR9Lbm+sO96Z9FPRW8eXWyd41acGkN0EwZDuP/wm77EoCi8FIpgXI8HvdlPVUjvTEY13O+zwzVU6hm+B8Shz7CIbc4fR248KFahTxWQYbdPoxqtxpWF2y+sv74DS40jE+jmKvcXLv1qvC7kiAY8VIF5g4g/cUsQH32WH/Jau+KycI6AgHWasoSReM8j5GW3NED1GdkQtSEmRdHPLiZSulRg29GRvf1gcKjVag9zKZjmDGwsK56yGmJ0EuZTWA+WsMCK4OTEMhl3fhxjn7WrolOYfYYoKjYe/Rxhi5oORyNeqm+KDISpFOOAdHrvTsTgztdloqqv0Yma6u/q7W5pLBDSp+vxnywfpxgxKOEIi0TRx+Hwrji52TWQiM34o3JfQsef3mtIIA851GOz1+GLyTOKcusavkPePM1rMZKazxm74ZPDI/Bw5qu/AoXWzsnkOIih8Bm3kFlLV2kTGxj3Anhp+Q5VIsfTufK/Sk1lKEPI+nIYwBRLK0hrxhZXahz5cfJdHSSk1QSEQ7tqZVm0SDtIP8cDIWh9yusLC9sCtF1djyalZvrle4zhpPN+AMgcpFOEVX+fyfEcUuMUR1gQaumKxny+wHXJdHE7EurQqMSZ8skDAcCQusg7FELsVFjXDztAWRHvRNcOZ9ynPAZ6vAEhySxDZH5RmBc8poGl46Z20PykhVWjP7zgW73Uug4/JG5+sVwDMPyF9uspGlW1WA0BNJjzhYqxOPgjKk83eHLaV42aBZZBAkbPR6BYd7E01xUzVCGT4S2E0IVufc/NtuwG9172sgWd8Ov2oIv4mrRTUHrgLv42U7emhEeX80sRozlf0AVd2jAKABKS8Vh2w29WWGPIoezTiGfEMc6Iht8hTR1BDNF+OihqddHG0bV4+p yoJVmnv/ 4AQj2L8jQzdtfSgajvhVEtxR+risdvk8e5NgQaxwfD2z8JwMn+hxp5HI7QdsEs4amqW9AEUqtSwV12VaKE8t7D3mF9OfSumn/XmqaLNEh0TSjVPJGJ4q0e4IjskZQsw1KJA0KHyR3FoHrsWMjJOXzHakwPFEiaHRc4K2igxH2ukww0aZE1NAJFveawV3CrMiSlLgfmbAL9t+xtfK5j0KwTJYrXYCyLm30F6zdUzEHm+7ThTG7YK/WomGPa6dGKJ0aa+mzWA8NFGY8BbJlXic8FC0di5ccfQYy74u2qRYboxValsPUD7EY9DZ40pCPjIkyI8045sv4BG8576GcIV/jYCVEC7VQhUFvWrnILJmAzrvCo00= 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: List-Subscribe: List-Unsubscribe: On 14.11.25 02:22, Balbir Singh wrote: > Unmapped was added as a parameter to __folio_split() and related > call sites to support splitting of folios already in the midst > of a migration. This special case arose for device private folio > migration since during migration there could be a disconnect between > source and destination on the folio size. Didn't I already comment that the subject should start with "mm/huge_memory: introduce ..." ? Yes I did: https://lore.kernel.org/all/048134fd-6a3d-4a6c-a2eb-9a9911c3b35f@kernel.org/ You know, I'm a busy man, can you *please* * take better care of addressing all previous comments? * wait more than 12 h after asking a question before you resend? -- Cheers David