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Date:   Tue, 20 Jul 2021 13:41:45 +0300
From:   Mike Rapoport <rppt@kernel.org>
To:     "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc:     linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        linux-fsdevel@vger.kernel.org, Zi Yan <ziy@nvidia.com>,
        Christoph Hellwig <hch@lst.de>,
        Jeff Layton <jlayton@kernel.org>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        William Kucharski <william.kucharski@oracle.com>,
        David Howells <dhowells@redhat.com>
Subject: Re: [PATCH v14 008/138] mm: Add folio_get()
Message-ID: <YPaoaXP2Nao4I0Jb@kernel.org>
References: <20210715033704.692967-1-willy@infradead.org>
 <20210715033704.692967-9-willy@infradead.org>
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On Thu, Jul 15, 2021 at 04:34:54AM +0100, Matthew Wilcox (Oracle) wrote:
> If we know we have a folio, we can call folio_get() instead
> of get_page() and save the overhead of calling compound_head().
> No change to generated code.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> Reviewed-by: Zi Yan <ziy@nvidia.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Acked-by: Jeff Layton <jlayton@kernel.org>
> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>
> Reviewed-by: William Kucharski <william.kucharski@oracle.com>
> Reviewed-by: David Howells <dhowells@redhat.com>
> ---
>  include/linux/mm.h | 26 +++++++++++++++++---------
>  1 file changed, 17 insertions(+), 9 deletions(-)

Acked-by: Mike Rapoport <rppt@linux.ibm.com>