On 07/07/16 08:35, Jan Beulich wrote: > Many of these operations can take arbitrarily long, which can become a > problem irrespective of them being exposed to privileged users only.
If this is a concern I would rather see large numbers of mapping requests processed in smaller batches. This would also limit the amount of memory needed. Note also that xen_remap_domain_gfn() array already has a cond_resched() after every batch of 16 GFNs. David
