On Tue, Apr 14, 2020 at 10:13:44PM +1000, Nicholas Piggin wrote: > Which case? Usually the answer would be because you don't want to use > contiguous physical memory and/or you don't want to use the linear > mapping. But with huge pages you do by definition already use large contiguous areas. So you want allocations larger than "small" huge pages but not using gigantic pages using vmalloc?