alc 268d180ee5 Add a comment discussing the appropriate use of the atomic_*() functions
with acquire and release semantics versus the *mb() functions on amd64
processors.

Reviewed by:	bde (an earlier version), kib
Sponsored by:	EMC / Isilon Storage Division
2015-07-24 19:43:18 +00:00
..
2014-11-25 03:50:31 +00:00