Turning on mpsafe mode by default in master

Matthew Dillon dillon at apollo.backplane.com
Wed Jan 19 20:31:00 PST 2011

    I'm going to remove the mplock shims in our global tokens in
    master, essentially running the related code mpsafe from this point

    There are still numerous global code bits that use the mplock
    directly, though mostly out of the critical path now.

    The next major bit of work to improve MP performance is going to be
    dealing with wide-ranging vm_token.

					Matthew Dillon 
					<dillon at backplane.com>

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