Re: [PATCH 1/4] mm: ksm: have KSM VMA checks not require a VMA pointer

From: David Hildenbrand
Date: Mon May 19 2025 - 13:40:49 EST


On 19.05.25 10:51, Lorenzo Stoakes wrote:
In subsequent commits we are going to determine KSM eligibility prior to a
VMA being constructed, at which point we will of course not yet have access
to a VMA pointer.

It is trivial to boil down the check logic to be parameterised on
mm_struct, file and VMA flags, so do so.

As a part of this change, additionally expose and use file_is_dax() to
determine whether a file is being mapped under a DAX inode.

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
---

Looking all good :)

Acked-by: David Hildenbrand <david@xxxxxxxxxx>

--
Cheers,

David / dhildenb