On Mon, Jan 17, 2022 at 06:56:41PM +0300, Kirill A. Shutemov wrote: > On Sun, Jan 16, 2022 at 12:18:12PM +0000, Matthew Wilcox (Oracle) wrote: > > + if (folio_test_large(folio) && !folio_test_hugetlb(folio)) > > + refs = folio_nr_pages(folio); > > Isn't folio_test_large() check redundant? folio_nr_pages() would return 1 > for non-large folio, wouldn't it? I'm trying to avoid the function call for !hugetlb pages.