On 03/04/15 07:42, Bob Liu wrote:
> Commit c43cf3ea8385 ("xen-blkback: safely unmap grants in case they are still
> in use") use gnttab_unmap_refs_async() to wait until the mapped pages are no
> longer in use before unmapping them, but that commit missed the persistent
> case.
> Purge persistent p
Commit c43cf3ea8385 ("xen-blkback: safely unmap grants in case they are still
in use") use gnttab_unmap_refs_async() to wait until the mapped pages are no
longer in use before unmapping them, but that commit missed the persistent case.
Purge persistent pages can't be unmapped either unless no longe
