On Wed, Mar 31, 2021 at 07:47:24PM +0100, Matthew Wilcox (Oracle) wrote: > wait_on_page_writeback_killable() only has one caller, so convert it to > call wait_on_folio_writeback_killable(). For the wait_on_page_writeback() > callers, add a compatibility wrapper around wait_on_folio_writeback(). > > Turning PageWriteback() into FolioWriteback() eliminates a call to > compound_head() which saves 8 bytes and 15 bytes in the two functions. > That is more than offset by adding the wait_on_page_writeback > compatibility wrapper for a net increase in text of 15 bytes. Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>