1. semaphore locking API 인 up/down 을 mutex 에 쓰자는 의견이 나옴.
http://article.gmane.org/gmane.linux.kernel/357889
The vast majority of ups and downs are actually mutex related not semaphore
related, so by majority share, up/down perhaps ought to be repurposed to
mutexes: they _are_ the preeminent uses.
mutex 가 더 많이 쓰인다.
2. 알란콕스 - 새로 만들어 써라.
http://thread.gmane.org/gmane.linux.kernel/357216
you need to add a new one and wait for people to use it
사람들이 사용하기를 기다려야 한다.
3. 리누즈 - 새로 만들어 쓰자고 정리.
http://article.gmane.org/gmane.linux.kernel/358203
Why bother. As has already been discussed up and down are the natural
and normal names for counting semaphores. You don't need to obsolete the
old API thats just silly, you need to add a new one and wait for people
to use it.
The old API is still very useful for some applications that want
counting semaphores.