[PATCH v3 31/40] mm/vma: introduce vma[_flags]_is_persistent()

David Hildenbrand (Arm) david at kernel.org
Thu Oct 1 23:59:47 PDT 2026


On 9/17/26 18:22, Lorenzo Stoakes (ARM) wrote:
> Introduce vma[_flags]_is_persistent() for the purposes of identifying
> mappings that are persistent in the sense that bytes to the mapping stay
> there, and bytes read from the mapping are the same unless changed by
> actions taken by userland.

That's extremely confusing, sorry. We have to find a better name for that.

Is this really all about user pages (pagecache, anon) that we would find through
the rmap?

-- 
Cheers,

David



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