Quoting explorer@flame.org,

> With the popularity of race conditions involving /tmp and such, would
> the idea of a per-user temporary storage space be helpful?

> I was thinking of modifying the memory filesystem to do some magic
> based on the user using /tmp.

I don't think modifying a filesystem in this way is a good idea at all;
it's something that should not be in the kernel. As soon as you start
plugging holes by modifying the kernel, while there is a good userspace
solution possible (i.e. mkstemp(3)), then you're on the wrong track.

- Frank