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From:   David Howells <dhowells@redhat.com>
In-Reply-To: <20210715033704.692967-24-willy@infradead.org>
References: <20210715033704.692967-24-willy@infradead.org> <20210715033704.692967-1-willy@infradead.org>
To:     "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc:     dhowells@redhat.com, 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()
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Content-ID: <1796498.1628609745.1@warthog.procyon.org.uk>
Date:   Tue, 10 Aug 2021 16:35:45 +0100
Message-ID: <1796499.1628609745@warthog.procyon.org.uk>
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Matthew Wilcox (Oracle) <willy@infradead.org> 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>

Reviewed-by: David Howells <dhowells@redhat.com>