Re: RT and XFS

[Ingo Molnar <mingo@elte.hu>]

* Bill Huey <bhuey@lnxw.com> wrote:

> On Mon, Jul 18, 2005 at 02:10:31PM +0200, Esben Nielsen wrote:
> > Unfortunately, one of the goals of the preempt-rt branch is to avoid
> > altering too much code. Therefore the type semaphore can't be removed
> > there. Therefore the name still lingers ... :-(
> 
> This is where you failed. You assumed that that person making the 
> comment, Christopher, in the first place didn't have his head up his 
> ass in the first place and was open to your end of the discussion.

please take me off the Cc: list for such kind of replies. Christoph is 
very much entitled to his opinion, which i happen to mostly share in 
this case: we should not be bothering upstream with requirements unique 
to PREEMPT_RT. PREEMPT_RT restricts struct semaphore to be a mutex, and 
that doesnt make it a classic semaphore anymore. We had no other choice 
but it's still somewhat unclean in that regard.

(I do disagree with Christoph on another point: i do think we eventually 
want to change the standard semaphore type in a similar fashion upstream 
as well - but that probably has to come with a s/struct semaphore/struct 
mutex/ change as well.)

	Ingo