On Sat, Oct 12, 2013 at 07:06:56PM +0200, Oleg Nesterov wrote: > it even disables irqs, so this should always imply rcu_read_lock() with > any implementation,
Not so; I could make an RCU implementation that drives the state machine from rcu_read_unlock(). Such an implementation doesn't need the interrupt driven poll-state driver we currently have and could thus subvert that assumption :-) Then again, there's a good reason PaulMck didn't pick this implementation. > In fact I do not even understand why getaffinity() doesn't simply > return ->cpus_allowed, but this is off-topic. Yeah, me neither :-(, it always surprises me. But changing it is likely to break stuff so there we are. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
