Nathan Whitehorn c5e8bb4f2e Provide a tunable (machdep.moea64_bpvo_pool_size) to set the bootstrap
PVO pool size. The default errs on the exceedingly large side, so absent
any intelligent automatic tuning, at least let the user set it to save
RAM on memory-constrained systems.

MFC after:	2 weeks
2015-01-19 05:14:07 +00:00
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