On Thu, Sep 24, 2020 at 10:16:14AM +0200, Uladzislau Rezki wrote: > The key point is "enough". We need pages to make a) fast progress b) support > single argument of kvfree_rcu(one_arg). Not vice versa. That "enough" depends > on scheduler latency and vague pre-allocated number of pages, it might > be not enough what would require to refill it more and more or we can overshoot > that would lead to memory overhead. So we have here timing issues and > not accurate model. IMHO. I'm firmly opposed to the single argument kvfree_rcu() idea, that's requiring memory to free memory.
