Re: [PATCH v14 089/138] mm/filemap: Add FGP_STABLE

David Howells
2021-08-10T22:07:29Z

Matthew Wilcox (Oracle) <willy@infradead.org> wrote:

> Allow filemap_get_folio() to wait for writeback to complete (if the
> filesystem wants that behaviour). This is the folio equivalent of
> grab_cache_page_write_begin(), which is moved into the folio-compat
> file as a reminder to migrate all the code using it. This paves the
> way for getting rid of AOP_FLAG_NOFS once grab_cache_page_write_begin()
> is removed.
>
> Kernel grows by 11 bytes. filemap_get_folio() grows by 33 bytes but
> grab_cache_page_write_begin() shrinks by 22 bytes to make up for it.
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

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