Re: [PATCH] x86/mm: Pre-allocate p4d/pud pages for vmalloc area

[Joerg Roedel]

On Fri, Jun 26, 2020 at 01:32:15PM +0200, Peter Zijlstra wrote:
> That is, this is boot time only, right? clone() would return -ENOMEM, as
> it's part of the normal page-table copy.

Yes, the pre-allocation happens shortly after the buddy allocator took
over from bootmem. I don't quite get what clone() has to do with it.


	Joerg