linux-kernel - Re: [PATCH v2 13/28] mm: Add folio_pincount

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Message-ID: <YdvvUHZTNdfvWh2Y@infradead.org>
Date:   Mon, 10 Jan 2022 00:33:20 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     linux-mm@...ck.org, John Hubbard <jhubbard@...dia.com>,
        Christoph Hellwig <hch@...radead.org>,
        William Kucharski <william.kucharski@...cle.com>,
        linux-kernel@...r.kernel.org, Jason Gunthorpe <jgg@...pe.ca>
Subject: Re: [PATCH v2 13/28] mm: Add folio_pincount_ptr()

On Mon, Jan 10, 2022 at 04:23:51AM +0000, Matthew Wilcox (Oracle) wrote:
> +static inline atomic_t *folio_pincount_ptr(struct folio *folio)
> +{
> +	struct page *tail = &folio->page + 1;
> +	return &tail->compound_pincount;
> +}

And empty line after the declaration would be nice here.

Otherwise looks good:

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