Eric Dumazet <[email protected]> wrote: > > > > > An advantage of retaining a spinlock in percpu_counter is that if accuracy > > is needed at a low rate (say, /proc reading) we can take the lock and then > > go spill each CPU's local count into the main one. It would need to be a > > very low rate though. Or we make the cpu-local counters atomic too. > > We might use atomic_long_t only (and no spinlocks) Yup, that's it. > Something like this ? > It'd be a lot neater if we had atomic_long_xchg(). - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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