Re: [PATCH v3 5/5] mm/khugepaged: Convert collapse_pte_mapped_thp() to use folios

[Rik van Riel]

On Fri, 2023-10-20 at 11:33 -0700, Vishal Moola (Oracle) wrote:
> This removes 2 calls to compound_head() and helps convert khugepaged
> to
> use folios throughout.
> 
> Previously, if the address passed to collapse_pte_mapped_thp()
> corresponded to a tail page, the scan would fail immediately. Using
> filemap_lock_folio() we get the corresponding folio back and try to
> operate on the folio instead.
> 
> Signed-off-by: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>

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

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