Messages in this thread | | | From | Dan Williams <> | Date | Tue, 23 Jun 2020 17:21:06 -0700 | Subject | Re: [PATCH] mm/spase: never partially remove memmap for early section |
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On Tue, Jun 23, 2020 at 2:43 AM Wei Yang <richard.weiyang@linux.alibaba.com> wrote: > > For early sections, we assumes its memmap will never be partially > removed. But current behavior breaks this.
Where do we assume that?
The primary use case for this was mapping pmem that collides with System-RAM in the same 128MB section. That collision will certainly be depopulated on-demand depending on the state of the pmem device. So, I'm not understanding the problem or the benefit of this change.
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