Messages in this thread | | | Date | Mon, 22 Aug 2022 14:09:13 +0200 | From | Michal Hocko <> | Subject | Re: [PATCH 3/3] dma-pool: limit DMA and DMA32 zone size pools |
| |
On Mon 22-08-22 13:14:47, Christoph Hellwig wrote: > On Mon, Aug 22, 2022 at 10:41:01AM +0200, Michal Hocko wrote: > > ZONE_DMA existance is not runtime controlable (at least on x86). > > This is more about ZONE_DMA32 that can disappear if all memory is > inside ZONE_DMA. That is highly unusual (but still possible) with a > tiny x86-style ZONE_DMA, but can happen with a larger one other > architectures.
OK, so you are worried about configurations that lack ZONE_DMA32 because that memory range is covered by ZONE_DMA? I thought though simply do not have CONFIG_ZONE_DMA32. Or am I wrong here?
-- Michal Hocko SUSE Labs
| |