K 10
svn:author
V 7
davidxu
K 8
svn:date
V 27
2008-04-11T23:52:52.000000Z
K 7
svn:log
V 222
MFC:
	- add _umtx_op_err function to improve stability because of errno
	  changed by application signal handler code.
	- use kernel based userland rwlock to implement pthread_rwlock,
	  improve performance in most cases.

END