Re: [patch V163 38/51] x86/mm/64: Make a full PGD-entry size hole in the memory map

From: Thomas Gleixner
Date: Tue Dec 19 2017 - 13:14:53 EST


On Tue, 19 Dec 2017, Thomas Gleixner wrote:

> On Mon, 18 Dec 2017, Peter Zijlstra wrote:
>
> > On Mon, Dec 18, 2017 at 12:42:53PM +0100, Thomas Gleixner wrote:
> > > From: Andy Lutomirski <luto@xxxxxxxxxx>
> > >
> > > Shrink vmalloc space from 16384TiB to 12800TiB to enlarge the hole starting
> > > at 0xff90000000000000 to be a full PGD entry.
> > >
> > > A subsequent patch will use this hole for the pagetable isolation LDT
> > > alias.
> >
> > The below patch only changes 5L things, what about 4L ?
>
> I fear I've lost a hunk somewhere on the road ....

No, that hunk never existed :)