Messages in this thread | | | Subject | Re: [Xen-devel] [PATCH] xen/privcmd: sprinkle around cond_resched() calls in mmap ioctl handling | From | David Vrabel <> | Date | Thu, 7 Jul 2016 10:37:17 +0100 |
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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
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