Swallow LRU

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Swallow the Reaper.

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Clean up no longer used stuff

Specifically get rid of the pthread_ts for things that are now in a
fridge, and bits of data related to the removed flusher threads (that
were part of the removed content cache.)

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Clean up some no-longer-used parameters

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Add per-thread initialize/finalizer and data

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Add functionality to the fridge to let a fridge wait on its own

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Swallow the worker threads

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>