Mike Christie 9972cebb59
tcmu: fix unmap thread race ...
If the unmap thread has already run find_free_blocks
but not yet run prepare_to_wait when a wake_up(&unmap_wait)
call is done, the unmap thread is going to miss the wake
call. Instead of adding checks for if new waiters were added
this just has us use a work queue which will run us again
in this type of case.
Signed-off-by: Mike Christie <[email protected] [email protected]
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Mike Christie
9972cebb59