Messages in this thread | | | Subject | Re: [Xen-devel] [PATCH v2 9/9] xen/gntdev: Expose gntdev's dma-buf API for in-kernel use | From | Oleksandr Andrushchenko <> | Date | Thu, 7 Jun 2018 10:33:41 +0300 |
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On 06/07/2018 01:05 AM, Dongwon Kim wrote: > On Wed, Jun 06, 2018 at 05:51:38PM -0400, Boris Ostrovsky wrote: >> On 06/06/2018 08:46 AM, Oleksandr Andrushchenko wrote: >>> On 06/05/2018 01:36 AM, Boris Ostrovsky wrote: >>>> On 06/01/2018 07:41 AM, Oleksandr Andrushchenko wrote: >>>>> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> >>>>> >>>>> Allow creating grant device context for use by kernel modules which >>>>> require functionality, provided by gntdev. Export symbols for dma-buf >>>>> API provided by the module. >>>> Can you give an example of who'd be using these interfaces? >>> There is no use-case at the moment I can think of, but hyper dma-buf >>> [1], [2] >>> I let Intel folks (CCed) to defend this patch as it was done primarily >>> for them >>> and I don't use it in any of my use-cases. So, from this POV it can be >>> dropped, >>> at least from this series. >> >> Yes, let's drop this until someone actually needs it. >> >> -boris > I agree. We are working on re-architecturing hyper_dmabuf. We would use zcopy > apis however, not sure if we are going to do it from kernel or from userspace. > So please do not expose those for now. Ok, as we are all on the same page for that then I'll drop this patch for now >> >>>> -boris >>>> >>> [1] https://patchwork.freedesktop.org/series/38207/ >>> [2] https://patchwork.freedesktop.org/patch/204447/ >>> >>> _______________________________________________ >>> Xen-devel mailing list >>> Xen-devel@lists.xenproject.org >>> https://lists.xenproject.org/mailman/listinfo/xen-devel
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