Re: [Xen-devel] [RFC PATCH] page_alloc: use first half of higher order chunks when halving

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 02.04.14 at 02:17, <mvrushton@xxxxxxxxx> wrote:
> On 04/01/14 05:22, Tim Deegan wrote:
>> As long as we don't also change the default allocation order in
>> Xen. :)  In general, linux shouldn't rely on the order that Xen
>> allocates memory, as that might change later.  If the current API
>> can't do what's needed, maybe we can add another allocator
>> hypercall or flag?
> 
> Agree on not relying on the order in the long run. A new hypercall or 
> flag seems like overkill right now. The question for me comes down to my 
> proposed change which is more simple and solves the short term problem 
> or investing time in reworking the Linux code to make large allocations.

I think it has become pretty clear by now that we'd rather not alter
the hypervisor allocator for a purpose like this.

Jan


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