>>+struct user_beancounter
>>+{
>>+ atomic_t ub_refcount;
>
>
> Why not use a struct kref here instead of rolling your own reference
> counting logic?
We need more complex decrement/locking scheme than krefs
provide. e.g. in __put_beancounter() we need
atomic_dec_and_lock_irqsave() semantics for performance optimizations.
Kirill
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