walt wrote:
> Poul-Henning Kamp wrote:
> >I have uploaded a proof of concept patch:
> >
> >     http://phk.freebsd.dk/patch/fd_dev.patch
> >...And with this code enabled, it is possible to go from userland to
> >device driver without touching Giant underway.
> I'm sorry, I can't parse that last sentence.  Could you explain in
> 25 words or less (or 3 lines of code) what it means?
> 'Giant' is the lock that Alan is trying to get rid of?

Giant is the big lock that protects the whole kernel that everyone is
trying to get rid of :-).

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