[ltt-dev] [UST] Trace locking

[Mathieu Desnoyers]

* Nils Carlson (nils.carlson at ericsson.com) wrote:
> Hi there,
>
> I've been looking through the ust trace locking mechanism,  
> ltt_lock_traces, and am wondering: is there any real point to it? 
> Assuming only one single tracectl thread in the process the traces will 
> only ever be accessed or changed by that single thread. There is 
> therefore never a possibility of a lock contention, so why bother?
>
> Mathieu, do you have any insight?

If we ever move to a scheme where we have one thread that controls each trace
session, we will need the mutex.

Mathieu

>
> /Nils

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com