How to durably rename a file in POSIX?

Question

What\'s the correct way to durably rename a file in a POSIX file system? Specifically wondering about fsyncs on the directories. (If this depends on the OS/FS, I\

Answer 1

It sounds to me like you're trying to do the job of the filesystem. If you move a file the kernel and file-system are responsible for atomic operation and fault-recovery, not your code.

Anyway, this article seems to address your questions regarding fsync: http://blogs.gnome.org/alexl/2009/03/16/ext4-vs-fsync-my-take/