Re: [PATCH v2 4/4] mm/vmalloc: Hugepage vmalloc mappings

Christoph Hellwig
2020-04-14T13:02:55Z

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?