LOCK_PROFILING in -stable

[Robert Watson]

On Sat, 20 Oct 2007, Alfred Perlstein wrote:

>> This is my feeling also -- I would consider ABI breakage a show stopper for 
>> 6.x, but feel otherwise that the new code is much more mature and capable 
>> and would be quite beneficial to people building appliances and related 
>> products on 6.x. You might check with Attilio about whether there are any 
>> remaining outstanding issues that need to be resolved first, and make sure 
>> to send a heads up out on stable@ and put a note in UPDATING that the 
>> option and details have changed.
>
> I still get confused as to the meaning of this...
>
> It only breaks ABI when it's enabled.
>
> I think that is OK, right?

As we're eliminating MUTEX_PROFILING and replacing it with LOCK_PROFILING, I 
think it is OK that the ABI for one differs from the other as long as the base 
kernel ABI remains static.  I.e., this seems OK to me also.

Robert N M Watson
Computer Laboratory
University of Cambridge