Re: use of preempt_count instead of in_atomic() at leds-gpio.c

[David Brownell]

On Sunday 16 March 2008, Henrique de Moraes Holschuh wrote:
> Is the use of "if (preempt_count())" to know when to defer led gpio work to
> a workqueue needed?  Shouldn't "if (in_atomic())" be enough?

At this point, I don't know of any such reason.

I remember hunting for the right heuristic, and settling on
that one for reasons that I can't recall now.  They may even
be no longer applicable.
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