> Module Name:	src
> Committed By:	ad
> Date:		Fri Dec 21 10:40:13 UTC 2007
> 
> Modified Files:
> 	src/sys/dev/drm: drmP.h
> 
> Log Message:
> Use new style memory barriers.

...except membar_memory isn't defined, and mb_memory still litters
the arch/ directories.

Should DRM_MEMORYBARRIER() be reverted to use mb_memory?