alc 4e48a1137e Document the semantics of atomic_thread_fence operations.
Add atomic_load_<type> and atomic_store_<type>, and explain why they
exist.

Define the synchronizes-with relationship and its effects.

Reorder and revise some of the existing text.  For example, more
precisely describe when ordinary accesses are atomic.

Reviewed by:	jhb, kib
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D13522
2017-12-19 17:07:50 +00:00
..
2017-12-02 19:10:52 +00:00
2017-12-01 05:57:05 +00:00
2015-10-15 22:55:08 +00:00