Re: [RFC][PATCH] module: Optimize __module_address() using a latched RB-tree

Peter Zijlstra
2015-03-02T09:25:04Z

On Sat, Feb 28, 2015 at 03:32:03PM -0800, Paul E. McKenney wrote:
> Whew!
>
> Though otherwise whatever you were doing would have been pretty cool
> and fun to learn about. ;-)

So I think I can do that; where readers and writers are fully separated,
but it requires:

- tripple latch
- copy operator
- nested RCU

And the result would be horribly expensive (mostly due to the copy
operator on dynamic data structures) on the update side, which severely
limits the applicability of the scheme.