K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2019-10-02T17:06:28.360879Z
K 7
svn:log
V 447
Provide generic sub-word atomic *cmpset

Provide *cmpset_{8,16} as wrappers around atomic_fcmpset_32. Initial users
will be mips and sparc64, and perhaps parts of powerpc.

This are not for general consumption; machine/atomic.h should include this
header as needed to provide atomic_{,f}cmpset_{8,16} and machine/atomic.h
should provide acq_ and rel_ variants.

Reviewed by:	jhibbits, kib
Differential Revision:	https://reviews.freebsd.org/D21822

END