Re: [PATCH] x86/mm/pat: allocate split page tables as kernel page tables

Andrew Morton <[email protected]>
Newsgroups dev.linux.lists.iommu,org.kernel.vger.linux-kernel,org.kernel.vger.stable,org.kvack.linux-mm
Message-ID <[email protected]> 
On Mon, 20 Jul 2026 10:27:29 +0100 "Lorenzo Stoakes (ARM)" <[email protected]> wrote:

> When splitting a large page in CPA in __split_large_page() we allocate a
> PTE directly without going through the standard page table allocation
> routines such as pte_alloc_one_kernel().
> 
> This means the page table constructor is never called nor is the page table
> marked as a kernel page table.

Thanks, I'll await x86 review on this (Dave?).  Also, Sashiko might
have found a pre-existing thing:

	https://sashiko.dev/#/patchset/[email protected]
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