New ZFS "passthrough" ACL inheritance rules [PSARC/2008/231 FastTrack timeout 04/08/2008]

[Kyle McDonald]

Don Cragun wrote:
>
> I believe that the default should be POSIX compliant.  Let
> administrators specify options if they want non-standard behavior.
>
>   
...<snip>
> ACLs are not in POSIX.  (POSIX does, however, specify two classes of
> extended access control mechanisms [known as "additional file access
> control mechanisms" and "alternate file access control mechanisms"] and
> specifies interactions between chmod() and these classes of file access
> control mechanisms.  ACLs can be added as additional and/or alternate
> file access control mechanism as long as the interactions follow the
> standards.)
>
>   
I'm confused. How is that the current default behavior is required in 
order to be POSIX compliant if POSIX doesn't actually standardize ACLs?

  -Kyle