Re: [PATCH v1 00/17] Provide a new two step DMA mapping API

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On Thu, Oct 31, 2024 at 11:05:30AM +0200, Leon Romanovsky wrote:
> This series is a subset of the series you tested and doesn't include the
> block layer changes which most likely were the cause of the performance
> regression.
> 
> This is why I separated the block layer changes from the rest of the series
> and marked them as RFC.
> 
> The current patch set is viable for HMM and VFIO. Can you please retest
> only this series and leave the block layer changes for later till Christoph
> finds the answer for the performance regression?

As the subset doesn't touch block code or code called by block I don't
think we need Jens to benchmark it, unless he really wants to.





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