801b56090b
This reverts commit 076821e due to a locking issue uncovered in subsequent testing. An ASSERT is hit due to tq->tq_nspawn being updated outside the lock. The patch will need to be reworked. VERIFY3(0 == tq->tq_nspawn) failed (0 == -1) Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #472