Re: [PATCH mm-unstable v4 5/5] mm/khugepaged: unify khugepaged and madv_collapse with collapse_single_pmd()

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From: Andrew Morton

Date: Wed Apr 01 2026 - 16:38:41 EST

On Wed, 1 Apr 2026 09:14:35 +0100 "Lorenzo Stoakes (Oracle)" <ljs@xxxxxxxxxx> wrote:

> From: "Lorenzo Stoakes (Oracle)" <ljs@xxxxxxxxxx>
> Date: Tue, 31 Mar 2026 13:11:18 +0100
> Subject: [PATCH] mm/khugepaged: fix issue with tracking lock
>
> We are incorrectly treating lock_dropped to track both whether the lock is
> currently held and whether or not the lock was ever dropped.
>
> Update this change to account for this.
>
> Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@xxxxxxxxxx>

Not sure if I should add this?

Should it have

Fixes: 330f3758a3bc ("mm/khugepaged: unify khugepaged and madv_collapse
with collapse_single_pmd()")?