Re: [Xen-devel] [PATCH v4 6/8] mm: Keep heap accessible to others while scrubbing

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

>> @@ -1175,6 +1258,8 @@ static void free_heap_pages(
>>          if ( page_state_is(&pg[i], offlined) )
>>              tainted = 1;
>>  
>> +        pg[i].u.free.scrub_state = 0;
> Is this really needed for every page in the buddy?
>

The concern here is that is we break the buddy (in alloc_heap_pages(),
for example) this may still be set. But perhaps I just should be careful
about clearing this on the head when a (sub-)buddy is added to the heap.

-boris

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