Re: [PATCH v14 020/138] mm/filemap: Add __folio_lock_async()

[Mike Rapoport]

On Thu, Jul 15, 2021 at 04:35:06AM +0100, Matthew Wilcox (Oracle) wrote:
> There aren't any actual callers of lock_page_async(), so remove it.
> Convert filemap_update_page() to call __folio_lock_async().
> 
> __folio_lock_async() is 21 bytes smaller than __lock_page_async(),
> but the real savings come from using a folio in filemap_update_page(),
> shrinking it from 515 bytes to 404 bytes, saving 110 bytes.  The text
> shrinks by 132 bytes in total.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> Acked-by: Jeff Layton <jlayton@xxxxxxxxxx>
> Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
> Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx>
> Reviewed-by: David Howells <dhowells@xxxxxxxxxx>
> ---
>  fs/io_uring.c           |  2 +-
>  include/linux/pagemap.h | 17 -----------------
>  mm/filemap.c            | 31 ++++++++++++++++---------------
>  3 files changed, 17 insertions(+), 33 deletions(-)

Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>