linux-kernel - Re: [PATCH v3 09/16] mm/huge_memory: refactor change_huge

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Message-ID: <38461f6f-6e47-49b1-90b6-1649dc39d5cc@suse.cz>
Date: Fri, 21 Nov 2025 18:58:41 +0100
From: Vlastimil Babka <vbabka@...e.cz>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
 Andrew Morton <akpm@...ux-foundation.org>
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Subject: Re: [PATCH v3 09/16] mm/huge_memory: refactor change_huge_pmd()
 non-present logic

On 11/10/25 23:21, Lorenzo Stoakes wrote:
> Similar to copy_huge_pmd(), there is a large mass of open-coded logic for
> the CONFIG_ARCH_ENABLE_THP_MIGRATION non-present entry case that does not
> use thp_migration_supported() consistently.
> 
> Resolve this by separating out this logic and introduce
> change_non_present_huge_pmd().
> 
> No functional change intended.
> 
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>

Reviewed-by: Vlastimil Babka <vbabka@...e.cz>