Re: swiotlb/caamjr regression (Was: [GIT PULL] (swiotlb) stable/for-linus-5.12)

[Christoph Hellwig]

On Thu, Jun 17, 2021 at 09:39:15AM +0900, Dominique MARTINET wrote:
> Konrad Rzeszutek Wilk wrote on Wed, Jun 16, 2021 at 08:27:39PM -0400:
> > Thank you for testing that - and this is a bummer indeed.
> 
> Hm, actually not that surprising if it was working without the offset
> adjustments and doing non-aligned mappings -- perhaps the nvme code just
> needs to round the offsets down instead of expecting swiotlb to do it?

It can't.  The whole point of the series was to keep the original offsets.