Re: [PATCH v3 5/6] mm: gup: introduce gup_unshared_pages()

[Rik van Riel]

On Mon, 2026-11-09 at 12:32 +0000, Yeoreum Yun wrote:
> This is preparatory patch to make gup_fast_pte_range() batchable.
> 
> Introduce gup_unshared_pages() to count consecutive pages within a
> folio
> that do not require unsharing, and use it to implement
> gup_must_unshare().
> 
Could gup_exclusive_pages() be a better name?

The code all looks good, though.

> Also add a folio argument to gup_must_unshare() so callers can reuse
> an
> existing folio and avoid the compound_head() call implicit in
> PageAnon().

Does that count as a functional change? ;)

> 
> There is no functional change.
> 
> Signed-off-by: Yeoreum Yun <yeoreum.yun@xxxxxxx>

Reviewed-by: Rik van Riel <riel@xxxxxxxxxxx>

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