[Swan-commit] Changes to ref refs/heads/master

[Andrew Cagney]

New commits:
commit 575b79803c4fd128ac6d04c7b09ad6d17e1f1116
Author: Andrew Cagney <cagney at gnu.org>
Date:   Wed Jan 29 17:13:02 2020 -0500

    crypto: during exit, shut down the helper threads
    
    Here's the notes:
    
    Wait for the crypto-helper threads to notice EXITING_PLUTO
    and exit (if necessary, wake any sleeping helpers from
    their slumber).  Without this any helper using NSS after
    the code below has shutdown the NSS DB will crash.
    
    This does not try to delete any tasks left waiting on the
    helper queue.  Instead, code further down deleting
    connections (which in turn deletes states) should clean
    that up?
    
    This also does not try to delete any completed tasks
    waiting on the event loop.  One theory is for the helper
    code to be changed so that helper tasks can be "cancelled"
    after the've completed?