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SubjectRe: [PATCH v2 01/12] mm: Assign id to every memcg-aware shrinker
On 18.04.2018 17:14, Tetsuo Handa wrote:
> Kirill Tkhai wrote:
>> The patch introduces shrinker::id number, which is used to enumerate
>> memcg-aware shrinkers. The number start from 0, and the code tries
>> to maintain it as small as possible.
>> This will be used as to represent a memcg-aware shrinkers in memcg
>> shrinkers map.
> I'm not reading this thread. But is there reason "id" needs to be managed
> using smallest numbers? Can't we use address of shrinker object as "id"
> (which will be sparse bitmap, and would be managed using linked list for now)?

Yes, it's needed to have the smallest numbers, as next patches introduce
per-memcg bitmap containing ids of shrinkers.


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