Re: (reiserfs) Re: NFSv4 ACLs (was: ...ACL's and reiser...)

[Hans Reiser]

Xuan Baldauf wrote:
> 
> It sounds sophisticated, but you know what is happening if you want to change
> access of some crowded directory (like "/usr", or "/home" on some systems)?
> Every ACL of every file within this directory gets updated...
> 
> Does nobody consider dynamic inheritance? Because when accessing a file, as
> access of every path component needs to be checked anyway, dynamic inheritance
> should not pose significant overhead, but is a LOT faster for updating, and
> probably smarter regarding disk space. The default ACL for a file would be
> "inherit all rights from parent", and for files with link count = 1, this ACL
> metadata can be left out entirely (because it's the suggested default.)
> (Leaving out the ACL metadata, may result in omitting checking for access,
> probably making dynamic inheritance faster than static inheritance.)
> 
> What do you think?
We agree, and just wait for the code to get written.

Hans