| Subject | Re: [HMM v13 04/18] mm/ZONE_DEVICE/free-page: callback when page is freed | From | Balbir Singh <> | Date | Mon, 21 Nov 2016 12:49:55 +1100 |
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On 19/11/16 05:18, Jérôme Glisse wrote: > When a ZONE_DEVICE page refcount reach 1 it means it is free and nobody > is holding a reference on it (only device to which the memory belong do). > Add a callback and call it when that happen so device driver can implement > their own free page management. >
Could you give an example of what their own free page management might look like?
Balbir Singh.
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