K 10 svn:author V 7 davidxu K 8 svn:date V 27 2006-10-06T08:22:08.000000Z K 7 svn:log V 358 Implement 32bit umtx_lock and umtx_unlock system calls, these two system calls are not used by libthr in RELENG_6 and HEAD, it is only used by the libthr in RELENG-5, the _umtx_op system call can do more incremental dirty works than these two system calls without having to introduce new system calls or throw away old system calls when things are going on. END