On Sun, 2004-08-22 at 22:09, Mike Mestnik wrote:
> --- Jon Smirl <[EMAIL PROTECTED]> wrote:
> 
> > Michel pointed out that all IOCTL calls hold the big kernel lock.
> > Releasing this lock is sure to case problems since the DRM code is not
> > designed to be reentrant. I don't know what it will take to fix locking
> > to allow this, maybe one of the original DRM authors will pop in here
> > with the answer. Until locking is adjusted we can't add the schedule
> > call.
> > 
> >From what I'v read, http://lwn.net/Articles/86859/, it's not a global
> kernel lock (I.E. it dosen't stop non-locked kernel code from running). 
> So the only reason it effects audio performace is that well, read the
> article :)
> 

The reason the BKL affects audio performance is that taking the BKL
disables preemption.

Lee



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