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Date:   Tue, 6 Apr 2021 15:23:16 +0100
From:   Christoph Hellwig <hch@infradead.org>
To:     "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        linux-fsdevel@vger.kernel.org, linux-cachefs@redhat.com,
        linux-afs@lists.infradead.org
Subject: Re: [PATCH v6 26/27] mm/filemap: Convert wake_up_page_bit to
 wake_up_folio_bit
Message-ID: <20210406142316.GY3062550@infradead.org>
References: <20210331184728.1188084-1-willy@infradead.org>
 <20210331184728.1188084-27-willy@infradead.org>
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In-Reply-To: <20210331184728.1188084-27-willy@infradead.org>
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On Wed, Mar 31, 2021 at 07:47:27PM +0100, Matthew Wilcox (Oracle) wrote:
>  void unlock_page_private_2(struct page *page)
>  {
> -	page = compound_head(page);
> -	VM_BUG_ON_PAGE(!PagePrivate2(page), page);
> -	clear_bit_unlock(PG_private_2, &page->flags);
> -	wake_up_page_bit(page, PG_private_2);
> +	struct folio *folio = page_folio(page);
> +	VM_BUG_ON_FOLIO(!FolioPrivate2(folio), folio);

A whitespace between the declaration and the code would be nice.

Otherwise looks good;

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