Namespaces

Al Viro has a patch implementing namespaces
Concept stolen from Plan 9

A namespace is simply a view of the filesystem
Traditional Unix: all processes share the same namespace
chroot(2) can tweak things slightly

With this patch:
Any process can have a completely different view of the filesystem
clone(0x20000) creates a new namespace
Like chroot, only better
No "jail" to break out of

ftp.math.psu.edu/pub/viro