[AFS3-std] Proposal: Extension of RXAFS_SetLock to support LockUpgrade and LockDowngrade

[Jeffrey Hutzelman]

On Sun, 26 Feb 2006, Jeffrey Altman wrote:

> For the reason I explained above.  Capability bits are cheap.  Try and
> fallback is expensive.  Its not safe to cache the knowledge gained by
> trying and failing.

... because?