Re: [PATCH] mm: check pfn_valid first in zero_resv_unavail

[Michal Hocko]

On Fri 01-12-17 16:56:57, Dave Young wrote:
> On 11/30/17 at 10:35am, Michal Hocko wrote:
[...]
> > Can we exclude that range from the memblock allocator instead? E.g. what
> > happens if somebody allocates from that range?
> 
> It is a EFI BGRT image buffer provided by firmware, they are reserved
> always and can not be used to allocate memory.

Hmm, I see but I was actually suggesting to remove this range from the
memblock allocator altogether (memblock_remove) as it shouldn't be there
in the first place.
-- 
Michal Hocko
SUSE Labs