Re: [PATCH v11 09/12] swiotlb: Add restricted DMA alloc/free support

[Christoph Hellwig]

On Wed, Jun 16, 2021 at 12:04:16PM +0800, Claire Chang wrote:
> Just noticed that after propagating swiotlb_force setting into
> io_tlb_default_mem->force, the memory allocation behavior for
> swiotlb_force will change (i.e. always skipping arch_dma_alloc and
> dma_direct_alloc_from_pool).

Yes, I think we need to split a "use_for_alloc" flag from the force flag.