> I would vote against using it for profiling; profiling has it's own
> special fast-path, anyway.
But it would be good (less code, simpler, and even possibly for keeping
NMI watchdog ticking when oprofile is running) if we could merge the two
cases.
> The NMI watchdog only gets hit once every
> minute or so, it seems, so that seems suitable for this.
It can easily be much more frequent than that (though you could argue
this is a mis-setup).
> I've looked at the RCU code a little more, and I think I understand it
> better. I think your scenario will work, if it's true that it won't be
> called until all CPUs have done what you say. I'll look at it a little
> more.
Thanks for looking into this ...
regards
john
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