Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Tue, 20 Jul 2021 13:45:57 +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, Vlastimil Babka <vbabka@suse.cz>,
        William Kucharski <william.kucharski@oracle.com>,
        Christoph Hellwig <hch@lst.de>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Subject: Re: [PATCH v14 023/138] mm/swap: Add folio_rotate_reclaimable()
Message-ID: <YPapZeNJ34pZfJXg@kernel.org>
References: <20210715033704.692967-1-willy@infradead.org>
 <20210715033704.692967-24-willy@infradead.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20210715033704.692967-24-willy@infradead.org>
Precedence: bulk

On Thu, Jul 15, 2021 at 04:35:09AM +0100, Matthew Wilcox (Oracle) wrote:
> Convert rotate_reclaimable_page() to folio_rotate_reclaimable().  This
> eliminates all five of the calls to compound_head() in this function,
> saving 75 bytes at the cost of adding 15 bytes to its one caller,
> end_page_writeback().  We also save 36 bytes from pagevec_move_tail_fn()
> due to using folios there.  Net 96 bytes savings.
> 
> Also move its declaration to mm/internal.h as it's only used by filemap.c.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>
> Reviewed-by: William Kucharski <william.kucharski@oracle.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> ---
>  include/linux/swap.h |  1 -
>  mm/filemap.c         |  3 ++-
>  mm/internal.h        |  1 +
>  mm/page_io.c         |  4 ++--
>  mm/swap.c            | 30 ++++++++++++++++--------------
>  5 files changed, 21 insertions(+), 18 deletions(-)

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