linux-kernel - Re: [PATCH v2 10/28] gup: Turn hpage_pincount_sub() into page_pincount

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Message-ID: <YdvvBffXTIn9ei/v@infradead.org>
Date:   Mon, 10 Jan 2022 00:32:05 -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 10/28] gup: Turn hpage_pincount_sub() into
 page_pincount_sub()

On Mon, Jan 10, 2022 at 04:23:48AM +0000, Matthew Wilcox (Oracle) wrote:
> Remove an unnecessary VM_BUG_ON by handling pages both with and without
> a pincount field in page_pincount_sub().

Looks good:

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