Re: [PATCH 3/3] dma-pool: limit DMA and DMA32 zone size pools

[Christoph Hellwig]

On Wed, Aug 17, 2022 at 02:53:47PM +0200, Michal Hocko wrote:
> Yes this is much more reasonable estimation. Especially for the DMA
> zone. I still believe some downscaling would make sense but as said
> earlier nothing to really insist on. Also you likely want to have
> pr_warn for non-poppulated DMA zone as pointed in other thread[1].

So I think the warning would be useful, but how do we detect that the
zone should exist and is empty vs the case where it doesn't even
exist based on a runtime decision?