Re: [Xen-devel] [PATCH 12/14] xen-blkback: safely unmap grants in case they are still in use

[Jens Axboe <axboe@xxxxxxxxx>]

On 01/26/2015 08:02 AM, David Vrabel wrote:
> On 19/01/15 15:51, David Vrabel wrote:
> > From: Jenny Herbert <jennifer.herbert@xxxxxxxxxx>
> >
> > Use gnttab_unmap_refs_async() to wait until the mapped pages are no
> > longer in use before unmapping them.
> >
> > This allows blkback to use network storage which may retain refs to
> > pages in queued skbs after the block I/O has completed.
> Hi Jens,
>
> This xen-blkback change depends on several Xen changes and it would be
> easiest if this went via the Xen tree.  Are you ok with this?
Yeah, that's fine. You can add my acked-by.

--
Jens Axboe


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