K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2017-02-06T17:20:37.298604Z
K 7
svn:log
V 490
Update arm and arm64 counters MD bits.

On arm64 use atomics.  Then, both arm and arm64 do not need a critical
section around update.  Replace all cpus loop by CPU_FOREACH().
This brings arm and arm64 counter(9) implementation closer to current
amd64, but being more RISC-y, arm* version cannot avoid atomics.

Reported by:	Alexandre Martins <alexandre.martins@stormshield.eu>
Reviewed by:	andrew
Tested by:	Alexandre Martins, andrew
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks

END