On Wed, Aug 11, 2021 at 03:59:06PM +0200, Vlastimil Babka wrote: > On 7/15/21 5:35 AM, Matthew Wilcox (Oracle) wrote: > > Convert __page_rmapping to folio_raw_mapping and move it to mm/internal.h. > > It's only a couple of instructions (load and mask), so it's definitely > > going to be cheaper to inline it than call it. Leave page_rmapping > > out of line. > > Maybe mention the page_anon_vma() in changelog too? Convert __page_rmapping to folio_raw_mapping and move it to mm/internal.h. It's only a couple of instructions (load and mask), so it's definitely going to be cheaper to inline it than call it. Leave page_rmapping out of line. Change page_anon_vma() to not call folio_raw_mapping() -- it's more efficient to do the subtraction than the mask.
