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    SubjectRe: [PATCH v14 020/138] mm/filemap: Add __folio_lock_async()
    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@infradead.org>
    > Reviewed-by: Christoph Hellwig <hch@lst.de>
    > Acked-by: Jeff Layton <jlayton@kernel.org>
    > Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    > Acked-by: Vlastimil Babka <vbabka@suse.cz>
    > Reviewed-by: William Kucharski <william.kucharski@oracle.com>
    > Reviewed-by: David Howells <dhowells@redhat.com>
    > ---
    > 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@linux.ibm.com>

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