Re: [PATCH 11/17] gup: Convert gup_huge_pmd() to use a folio

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To: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: Re: [PATCH 11/17] gup: Convert gup_huge_pmd() to use a folio
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 4 Jan 2022 00:26:50 -0800
Cc: linux-mm@xxxxxxxxx, John Hubbard <jhubbard@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
In-reply-to: <20220102215729.2943705-12-willy@infradead.org>
References: <20220102215729.2943705-1-willy@infradead.org> <20220102215729.2943705-12-willy@infradead.org>

On Sun, Jan 02, 2022 at 09:57:23PM +0000, Matthew Wilcox (Oracle) wrote:
> Use the new folio-based APIs.  Also fix an assumption that memmap is
> contiguous.

The changes looks good, but I'd really split all these nth_page
conversions into a single prep patch.

References:
- [PATCH 00/17] Convert GUP to folios
  - From: Matthew Wilcox (Oracle)
- [PATCH 11/17] gup: Convert gup_huge_pmd() to use a folio
  - From: Matthew Wilcox (Oracle)

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