O_DIRECTORY|O_TMPFILE

> Would anyone other than you be able to do that? There is no point even asking my employer to release me from work for the last few years leading up to retirement. :-)

Your estimate is a couple years for figuring out an API for tracking and viewing unlinked-but-open files? Yeesh.

I get pretty scathing when people pile on complexity without thinking about how it'll be debugged. There's too many opaque black boxes already in the kernel.

My rule is, before you pile something on, you need to make sure what you already have is understandable.