packed permission bits in file systems?

[David Nicol]

http://en.wikipedia.org/wiki/Talk:Filesystem_permissions#Packed_permission_bits.3F


Clearly, ext3 has moved beyond "packed permission bits" if that ever
was a production concept.


[david at hexaflexagon scrabble]$ touch BLOP
[david at hexaflexagon scrabble]$ ls -l BLOP
-rw-r--r-- 1 david david 0 Jun  3 04:11 BLOP
[david at hexaflexagon scrabble]$ chmod o+x BLOP
[david at hexaflexagon scrabble]$ ls -l BLOP
-rw-r--r-x 1 david david 0 Jun  3 04:11 BLOP
[david at hexaflexagon scrabble]$

Under packed permissions, granting for OTHERS would grant for USER and
GROUP too.

Here's my question: When did packed permissions stop being used, if
they ever were?
Does anyone else remember "chmod o+w foo" silently implying "chmod
ugo+w foo" and if so how log ago was that?


-- 
"I'm not giving in an inch to fear" --David Crosby