[RFC 00/20] Proposal for remaining BKL users

Arnd Bergmann arnd at arndb.de
Wed Jan 26 05:45:17 PST 2011

On Wednesday 26 January 2011, Mauro Carvalho Chehab wrote:
> I guess you're meaning cx25821, right? 

Right, sorry for the typo.
> Palash should take a look on it and review. This is a device that allows
> 12 simultaneous streams, so, I suspect that he'll need to do some
> changes at the locking schema, to avoid performance bottlenecks.

I would be surprised if there was any measurable performance change.
The BKL was used only in the open() function to iterate the device
list, and that code is nowhere on a critical path, as far as I can tell.


More information about the dri-devel mailing list