Messages in this thread | | | Date | Sat, 05 Aug 2000 18:06:01 -0700 | From | Hans Reiser <> | Subject | Re: (reiserfs) Re: NFSv4 ACLs (was: ...ACL's and reiser...) |
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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
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