K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2017-02-19T16:28:46.874135Z
K 7
svn:log
V 232
locks: make trylock routines check for 'unowned' value

Since fcmpset can fail without lock contention e.g. on arm, it was possible
to get spurious failures when the caller was expecting the primitive to succeed.

Reported by:	mmel

END