On Mon, Aug 15, 2022 at 10:42:01AM +0200, Michal Hocko wrote: > Anyway, you seem to be not thrilled about the __GFP_NOWARN approach and > I won't push it. But is the existing inconsistency really desirable? I > mean we can get pretty vocal warning if the allocation fails but no > information when the zone doesn't have any managed memory. Why should we > treat them differently? How could we end up having ZONE_DMA without any managed memory to start with except for the case where the total memory is smaller than what fits into ZONE_DMA? If we have such a case we really should warn about it as well.
