On 11/10/2018 09:20 AM, Peter Zijlstra wrote: > On Thu, Nov 08, 2018 at 03:34:23PM -0500, Waiman Long wrote: >> There are use cases where we want to allow 2-level nesting of one >> terminal lock underneath another one. So the terminal lock type is now >> extended to support a new nested terminal lock where it can allow the >> acquisition of another regular terminal lock underneath it. > You're stretching things here... If you're allowing things under it, it > is no longer a terminal lock. > > Why would you want to do such a thing? A majority of the gain in debugobjects is to make the hash lock a kind of terminal lock. Yes, I may be stretching it a bit here. I will take back the nesting patch and consider doing that in a future patch. Cheers, Longman
