Re: [RFC 0/7] Introduce swiotlb throttling

[Bart Van Assche]

On 8/22/24 11:37 AM, mhkelley58@xxxxxxxxx wrote:
> Linux device drivers may make DMA map/unmap calls in contexts that
> cannot block, such as in an interrupt handler.

Although I really appreciate your work, what alternatives have been
considered? How many drivers perform DMA mapping from atomic context?
Would it be feasible to modify these drivers such that DMA mapping
always happens in a context in which sleeping is allowed?

Thanks,

Bart.