K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2012-04-09T14:17:22.415739Z
K 7
svn:log
V 384
sem_open: Make sure to fail an O_CREAT|O_EXCL open, even if that semaphore
is already open in this process.

If the named semaphore is already open, sem_open() only increments a
reference count and did not take the flags into account (which otherwise
happens by passing them to open()). Add an extra check for O_CREAT|O_EXCL.

PR:		kern/166706
Reviewed by:	davidxu
MFC after:	10 days

END