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From: "David S. Miller" <davem@redhat.com>
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Date: Wed, 21 Mar 2001 03:30:46 -0800 (PST)
To: george anzinger <george@mvista.com>
Cc: Keith Owens <kaos@ocs.com.au>, nigel@nrg.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH for 2.5] preemptible kernel
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george anzinger writes:
 > By the by, if a preemption lock is all that is needed the patch defines
 > it and it is rather fast (an inc going in and a dec & test comming
 > out).  A lot faster than a spin lock with its "LOCK" access.  A preempt
 > lock does not need to be "LOCK"ed because the only contender is the same
 > cpu.

So we would have to invoke this thing around every set of
smp_processor_id() references?

Later,
David S. Miller
davem@redhat.com
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