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From: Matthew Macy <mmacy@freebsd.org>
Date: Sat, 23 Jun 2018 12:18:28 -0700
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Subject: atomic_testandclear_<type>, atomic_testandset_<type>
To: freebsd-current <freebsd-current@freebsd.org>, marius@freebsd.org, 
 John Baldwin <jhb@freebsd.org>, Adrian Chadd <adrian.chadd@gmail.com>
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The functions in the subject are both documented in atomic(9) and are
implemented by every arch except sparc64 and MIPS. I have some code in
review that uses them that I intend to commit once the various design
issues are addressed. Please implement them so that those targets can
remain part of universe.

Thanks in advance.
-M