On Mon, May 10, 2021 at 05:15:23PM +0200, Christoph Lameter wrote: > I guess this needs to be reviewed and tested by the users of architectures > that can use large MAXORDER pages such as powerpc and Itanium. as Vlastimil Babka said, I think it's fine too. because KMALLOC_SHIFT_HIGH can't be bigger than 25 regardless of MAX_ORDER