Re: mmotm 2020-07-27-18-18 uploaded (mm/page_alloc.c)

[Andrew Morton]

On Wed, 29 Jul 2020 08:20:53 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:

> Hi Andrew,
> 
> On Tue, 28 Jul 2020 14:55:53 -0700 Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> > config CONTIG_ALLOC
> >         def_bool (MEMORY_ISOLATION && COMPACTION) || CMA
> > 
> > says this is an improper combination.  And `make oldconfig' fixes it up.
> > 
> > What's happening here?
> 
> CONFIG_VIRTIO_MEM selects CONFIG_CONTIG_ALLOC ...

Argh, select strikes again.

So I guess VIRTIO_MEM should also select COMPACTION?