Linus Torvalds [off-list ref] wrote:

So I no longer hate the implementation, but I do want to see the
actual user space users come out of the woodwork and try this out for
their use cases.

I'll see if I can get someone to help fix this:

	https://bugzilla.redhat.com/show_bug.cgi?id=1551648

for the KEYRING kerberos cache using notifications.  Note that the primary
thrust of this BZ is with KCM cache, but it affects KEYRING as well.

Also, I'll poke Greg, since he was interested in using it for USB
notifications.

David