Re: [PATCH] dma-debug: skip cacheline overlap tracking on cache-coherent architectures
From: Christoph Hellwig
Date: Tue May 19 2026 - 05:34:00 EST
On Tue, May 19, 2026 at 01:03:08PM +0500, Mikhail Gavrilov wrote:
> On Tue, May 19, 2026 at 12:18 PM Christoph Hellwig <hch@xxxxxx> wrote:
> >
> > It is not. We could require direct I/O to/from devices that are
> > attached without DMA coherence to require cache line alignment.
> >
> > Now that Keith pushed down the checking into the driver that's even
> > fairly easily doable.
> >
>
> Good to hear. Is there a posted series or branch I could look at?
This work is upstream, IIRC it got merged around 6.18 or 6.19.