From: "David Hildenbrand (Red Hat)" <david@kernel.org>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Vishal Moola <vishal.moola@gmail.com>, linux-mm@kvack.org
Subject: Re: [PATCH 3/4] mm: Mark pagetable memory when allocated
Date: Tue, 18 Nov 2025 18:00:05 +0100 [thread overview]
Message-ID: <671477a4-242a-4ad9-9724-8cf4eb39677b@kernel.org> (raw)
In-Reply-To: <20251113140448.1814860-4-willy@infradead.org>
On 13.11.25 15:04, Matthew Wilcox (Oracle) wrote:
> Move the page type setting from the constructor to the allocation site.
> Some of the architecture code is a little complex to reason about, but
> I think this is all correct.
IIUC, __ClearPageTable(page) and __SetPageTable(page) already check that
no other/the expected type is set.
SO I guess we'd find out rather soon whether we are missing something :)
Moving it to alloc+free makes perfect sense to me.
--
Cheers
David
next prev parent reply other threads:[~2025-11-18 17:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-13 14:04 [PATCH 0/4] Convert pgtable to use frozen pages Matthew Wilcox (Oracle)
2025-11-13 14:04 ` [PATCH 1/4] mm: Use frozen pages for page tables Matthew Wilcox (Oracle)
2025-11-13 18:24 ` Vishal Moola (Oracle)
2025-11-13 19:14 ` Vishal Moola (Oracle)
2025-11-14 13:45 ` Matthew Wilcox
2025-11-14 14:31 ` Will Deacon
2025-11-17 14:38 ` kernel test robot
2025-11-18 0:44 ` Vishal Moola (Oracle)
2025-11-19 15:46 ` Chih-En Lin
2025-11-20 13:55 ` David Hildenbrand (Red Hat)
2025-11-13 14:04 ` [PATCH 2/4] mm: Account pagetable memory when allocated Matthew Wilcox (Oracle)
2025-11-13 19:39 ` Vishal Moola (Oracle)
2025-11-13 14:04 ` [PATCH 3/4] mm: Mark " Matthew Wilcox (Oracle)
2025-11-18 17:00 ` David Hildenbrand (Red Hat) [this message]
2025-11-13 14:04 ` [PATCH 4/4] pgtable: Remove uses of page->lru Matthew Wilcox (Oracle)
2025-11-20 13:56 ` David Hildenbrand (Red Hat)
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