Re: [PATCH v12 24/33] mm/swap: Add folio_rotate_reclaimable()

[Kirill A. Shutemov]

On Tue, Jun 22, 2021 at 12:41:09PM +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@xxxxxxxxxxxxx>
> Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
> Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>

-- 
 Kirill A. Shutemov