Re: [Xen-devel] [RFC PATCH V2 13/14] Infrastructure for manipulating 3-level event channel pages

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 21.01.13 at 15:30, Wei Liu <wei.liu2@xxxxxxxxxx> wrote:
> +    evtchn_pending = xzalloc_array(xen_pfn_t, r.nr_pages);
> +    evtchn_mask = xzalloc_array(xen_pfn_t, r.nr_pages);
> +    l2sel_mfns = xzalloc_array(xen_pfn_t, r.nr_vcpus);
> +    l2sel_offsets = xzalloc_array(xen_pfn_t, r.nr_vcpus);

While the former two are okay, the latter two aren't since
this can easily amount to an allocation of more than a page.
This needs to be broken up.

Jan


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