K 10
svn:author
V 6
msmith
K 8
svn:date
V 27
1999-07-20T06:52:35.000000Z
K 7
svn:log
V 447
Implement an all-CPU shootdown-style rendezvous facility.  This allows
the caller to specify a function to be guarded between an entry and exit
barrier, as well as pre- and post-barrier functions.

The primary use for this function is synchronised update of per-cpu private
data.  The implementation is almost (but not quite) MI; with a better
mechanism for masking per-CPU interrupts it could probably be hoisted.

Reviewed by:	peter (partially)

END