Re: [PATCH v2 0/7] mm: Get rid of vmalloc_sync_(un)mappings()

[Joerg Roedel]

On Wed, May 13, 2020 at 09:01:04AM -0700, Andy Lutomirski wrote:
> I would love to see a followup patch that preallocates the vmalloc
> region on 64-bit and compiles out pgd_list and all of the associated
> gunk.

Looked a bit into this, with pre-allocation and a few more changes all
but one users of pgd_list and pgd_lock can be get rid of on x86-64. But
there is the XEN-PV code which also needs to traverse pgd_list, and I am
not sure how to get rid of that.

Regards,

	Joerg