Used/free stacks for workers - #3

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ulatekh wants to merge 5 commits into

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ulatekh:worker_stack

Commits on Jan 28, 2018

Now workers are tracked in used/free stacks, and ringbuf_consume()
ulatekh
committed
39adb57
Fixed clang-detected build errors.
ulatekh
committed
93ef399

Commits on Feb 7, 2018

Rewrote the worker-stack to allocate a worker-record in ringbuf_acquire().
ulatekh
committed
dbb7cfc
Now it passes the tests and the stress-test.
ulatekh
committed
43f4676
Added spinlock-backoff to the worker-record stack routines.
ulatekh
committed
3bcf4cc