Now that the free page queue mutex is a sleep mutex, we cannot call vm_page_alloc() from within a critical section in pmap_growkernel(). Since the need for a critical section may never have existed in the first place, simply get rid of it.
Now that the free page queue mutex is a sleep mutex, we cannot call
vm_page_alloc() from within a critical section in pmap_growkernel().
Since the need for a critical section may never have existed in the
first place, simply get rid of it.

Discussed with: alc@

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