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Date: Wed, 29 Jul 2020 10:29:53 -0700 From: Randy Dunlap <rdunlap@...radead.org> To: David Hildenbrand <david@...hat.com>, "Michael S. Tsirkin" <mst@...hat.com>, Andrew Morton <akpm@...ux-foundation.org> Cc: Stephen Rothwell <sfr@...b.auug.org.au>, broonie@...nel.org, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org, linux-next@...r.kernel.org, mhocko@...e.cz, mm-commits@...r.kernel.org, Jason Wang <jasowang@...hat.com> Subject: Re: mmotm 2020-07-27-18-18 uploaded (mm/page_alloc.c) On 7/29/20 9:14 AM, David Hildenbrand wrote: > On 29.07.20 16:38, David Hildenbrand wrote: >> On 29.07.20 16:18, Michael S. Tsirkin wrote: >>> On Tue, Jul 28, 2020 at 03:31:43PM -0700, Andrew Morton wrote: >>>> On Wed, 29 Jul 2020 08:20:53 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote: >>>> >>>>> Hi Andrew, >>>>> >>>>> On Tue, 28 Jul 2020 14:55:53 -0700 Andrew Morton <akpm@...ux-foundation.org> 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? >>> >>> +Cc the maintainer. >>> >> >> We had select CONFIG_CONTIG_ALLOC before and that seemed to be wrong. I >> was told select might be the wrong approach. >> >> We want memory isolation and contig_alloc with virtio-mem (which depends >> on memory hot(un)plug). What would be the right way to achieve this? >> > > Okay, I think I am confused. I thought we had that already fixed. @mst > what happened to > > https://lkml.kernel.org/r/d03c88ea-200d-54ab-d7f3-f3e5b7a0a9dd@redhat.com > > That patch is almost a month old, can you pick it, I already acked it. That patch works for me. Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested thanks. -- ~Randy
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