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SubjectRe: [PATCH v2 09/28] gup: Turn hpage_pincount_add() into page_pincount_add()
On Mon, Jan 10, 2022 at 04:23:47AM +0000, Matthew Wilcox (Oracle) wrote:
> Simplify try_grab_compound_head() and remove an unnecessary
> VM_BUG_ON by handling pages both with and without a pincount field in
> page_pincount_add().

Nice:

Reviewed-by: Christoph Hellwig <hch@lst.de>

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