K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2015-06-20T17:18:46.040773Z
K 7
svn:log
V 281
The barriers, provided by _acq and _rel atomics, are acquire and
release barriers, not read and write barriers.  They fence all memory
accesses from the respective side, not limited by the kind of
operation.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

END