Michael> Basically, its as Andrew said: the lock around clear_bit
Michael> is there to ensure that ipoib_mcast_send isnt running
Michael> already when we stop the thread. Thats why test_bit has
Michael> to be inside the lock, too.
Makes sense I guess. If I'm understanding correctly, the lock isn't
really there to serialize the bit ops, but rather to make sure
ipoib_mcast_send() won't do anything after we clear the bit.
Does that mean that there's no reason to take the lock around the set_bit()?
- R.
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