On Wed, Jun 23, 2021 at 11:27:12AM +0200, Christoph Hellwig wrote: > On Tue, Jun 22, 2021 at 01:15:32PM +0100, Matthew Wilcox (Oracle) wrote: > > Turn __set_page_dirty() into a wrapper around __folio_mark_dirty() (which > > can directly cast from page to folio because we know that set_page_dirty() > > calls filesystems with the head page). Convert account_page_dirtied() > > into folio_account_dirtied() and account the number of pages in the folio. > > Is it really worth micro-optimizing a transitional function like that? > I'd rather eat the overhead of the compound_page() call over adding hacky > casts like this. Fair enough. There's only three calls to it and one of them goes away this series.
