Re: [PATCH v14 032/138] mm: Add folio_mapped()

Mike Rapoport
2021-07-21T09:38:35Z

On Thu, Jul 15, 2021 at 04:35:18AM +0100, Matthew Wilcox (Oracle) wrote:
> This function is the equivalent of page_mapped(). It is slightly
> shorter as we do not need to handle the PageTail() case. Reimplement
> page_mapped() as a wrapper around folio_mapped(). folio_mapped()
> is 13 bytes smaller than page_mapped(), but the page_mapped() wrapper
> is 30 bytes, for a net increase of 17 bytes of text.
>
> 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>
> Reviewed-by: David Howells <dhowells@redhat.com>
> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> ---
> include/linux/mm.h | 1 +
> include/linux/mm_types.h | 6 ++++++
> mm/folio-compat.c | 6 ++++++
> mm/util.c | 29 ++++++++++++++++-------------
> 4 files changed, 29 insertions(+), 13 deletions(-)

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