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imf06.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="C0d/4Q04"; spf=pass (imf06.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; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1789658863; b=N/CDsf/02R1lyRTCveJEh3rQA1hxj8Ai9Eb8kUlYpmEN1Ctq0FFed50yy7fOcwgxocEqX9 82AOtsNAovTew7dHcped/pekSBsTz3b3kEGQ3Kq2YZRPEU/5VzsQKUhLguCRJWCg7D9gr9 auAXKIWm5Ryx7fKtwutv8BdYaB/phYs= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 470DA60214; Thu, 17 Sep 2026 15:27:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2804E1F00898; Thu, 17 Sep 2026 15:27:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789658862; bh=kShlOwXZOiLnNTcZN24UV1pqW1Tr7XKc2Bdzz64GFwY=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=C0d/4Q04O02HyFFNEtydce6Piyzk943RaY9kGhvSWle232tOluwzNBzYY2OrSb/G/ x5VENXPKhHbLLs7BUpIWPA1W7w1U563nEHR2Gr8VXJEdTANI7yoszdFkIw4lgiUWjB tYwuzzFrek9o8V8fpi9VJe/msaP74i/nZ6NSdvicIe6tiTpn68HfSb8EqDOSSamsmI p6gWMxDSGPlLU2RmDusWaVF4K1msBsUs73zfO+plVDSdasJl5v/OJnYfVGcdOHOKFw 2xlls3vx0517/a3tkjiVV27TyEJAMKjHJD8YStlRKxAKoeFMfcxxgFIPMeWrzHmSJO 1/VYiKlpr/u/A== Message-ID: <2c9bbd00-32f5-4579-a6c3-7b18b046272b@kernel.org> Date: Thu, 17 Sep 2026 17:27:35 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/1] mm/huge_memory: simplify pgtable deposit detection To: Lance Yang , akpm@linux-foundation.org Cc: ziy@nvidia.com, baolin.wang@linux.alibaba.com, liam@infradead.org, nico.pache@linux.dev, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, usama.arif@linux.dev, kas@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260917054015.23553-1-lance.yang@linux.dev> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Stat-Signature: 3xhxb7kwe41y7ohnr6xgszb48an8jx4c X-Rspamd-Queue-Id: 912B2180013 X-Rspamd-Server: rspam07 X-HE-Tag: 1789658863-862675 X-HE-Meta: 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 AojpNJYw ziaImt6q4R/UpG0ZAGMAS2isutEQxyBPlZE34mRNuPtuvwFPZfG0bkurvLrR1zCmqxOItsC9M62xhivdAsCbdW4I22R6Sv38+DWW3IWjt+tN+gYYAL6aso54ikaIJlvZ6Fsv3qtvlm9z1AiKSwifL5JjojuLtXgVFn00pytgANZWu+LQDhCqxlge3UT8s6bc+LeZgKMIJKYDWAbteXKtgqhfML6Z7Gaaoa+wNoA4bMsGUkXtQKMnr1LTxGkwCKRjS9bGAYwpsyJP4IDX26UDOsSkMOXJjp+ZX+eqoqYJsW814coDlr+kuy4mK6ROtxYA/PydSVKcMNywjREk= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 9/17/26 07:40, Lance Yang wrote: > Whether a PMD has a deposited PTE page table only depends on whether the > architecture requires deposits or the VMA is anonymous. > > Implement this rule directly in vma_has_deposited_pgtable(), avoiding > mistaking a non-anonymous raw PFN PMD for one with a deposit and attempting > to withdraw a page table that was never deposited. > > Suggested-by: David Hildenbrand > Signed-off-by: Lance Yang > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David