Re: [PATCH] mm/resource: Move child to new resource when release mem region.

[Dave Hansen]

On 10/10/19 12:28 AM, lantianyu1986@xxxxxxxxx wrote:
> When release mem region, old mem region may be splited to
> two regions. Current allocate new struct resource for high
> end mem region but not move child resources whose ranges are
> in the high end range to new resource. When adjust old mem
> region's range, adjust_resource() detects child region's range
> is out of new range and return error. Move child resources to
> high end resource before adjusting old mem range.

>From the comment, it appears the old code intended to have the behavior
that you are changing.  Could you explain _why_ this has become a
problem for you?