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Re: [Xen-devel] [PATCH v2 1/5] xen/blkback: don't keep persistent grants too long



On Wed, Aug 08, 2018 at 04:25:24PM +0200, Juergen Gross wrote:
> Persistent grants are allocated until a threshold per ring is being
> reached. Those grants won't be freed until the ring is being destroyed
> meaning there will be resources kept busy which might no longer be
> used.
> 
> Instead of freeing only persistent grants until the threshold is
> reached add a timestamp and remove all persistent grants not having
> been in use for a minute.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Thanks, Roger.

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