Dave Jones wrote: > > Can you explain this a little further? I'm fairly certain > there are places in the kernel already doing this (or similar). > In fact, I cut-n-pasted most of the above from similar code in the > powernow-k8 driver. What exactly can we deadlock on? > I wanted to change the MSR driver to do the above, and Alan Cox objected that with realtime priority routines and/or user set affinity, that code might never be executed, so I retained the IPI-based code (which executes at the target processor at interrupt priority.) -hpa
