From: Kiryl Shutsemau <kas@kernel.org>
To: Lance Yang <lance.yang@linux.dev>
Cc: akpm@linux-foundation.org, david@kernel.org, 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, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/1] mm/huge_memory: simplify pgtable deposit detection
Date: Thu, 17 Sep 2026 15:24:26 +0100 [thread overview]
Message-ID: <aqv1gZso6EwHEcoI@thinkstation> (raw)
In-Reply-To: <20260917054015.23553-1-lance.yang@linux.dev>
On Thu, Sep 17, 2026 at 01:40:15PM +0800, 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 <david@kernel.org>
> Signed-off-by: Lance Yang <lance.yang@linux.dev>
Reviewed-by: Kiryl Shutsemau (Meta) <kas@kernel.org>
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2026-09-17 14:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 5:40 [PATCH v2 1/1] mm/huge_memory: simplify pgtable deposit detection Lance Yang
2026-09-17 14:24 ` Kiryl Shutsemau [this message]
2026-09-17 15:27 ` David Hildenbrand (Arm)
2026-09-17 15:29 ` Zi Yan
2026-09-17 23:13 ` Andrew Morton
2026-09-18 3:19 ` Lance Yang
2026-09-18 11:09 ` David Hildenbrand (Arm)
2026-09-18 8:34 ` Baolin Wang
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