Re: [PATCH v2 14/28] mm: Convert page_maybe_dma_pinned() to use a folio

[Christoph Hellwig]

On Mon, Jan 10, 2022 at 04:23:52AM +0000, Matthew Wilcox (Oracle) wrote:
> Replace three calls to compound_head() with one.  This removes the last
> user of compound_pincount(), so remove that helper too.

Looks good,

Reviewed-by: Christoph Hellwig <hch@xxxxxx>