On Sat, May 28, 2022 at 05:27:11PM +0100, Matthew Wilcox wrote: > On Sun, May 29, 2022 at 12:11:58AM +0800, bh1scw@xxxxxxxxx wrote: > > From: Fanjun Kong <bh1scw@xxxxxxxxx> > > > > This patch will use folio allocation functions for allocating pages. > > That's not actually a good idea. folio_alloc() will do the > prep_transhuge_page() step which isn't needed for slab. > You mean folio_alloc() is dedicated for THP allocation? It is a little surprise to me. I thought folio_alloc() is just a variant of alloc_page(), which returns a folio struct instead of a page. Seems like I was wrong. May I ask what made us decide to do this? Thanks.
