[Devel] [PATCH 0/4] Devices accessibility control group (v3,
xemul at openvz.org
Thu Feb 7 07:56:18 EST 2008
Changes from v2:
* Fixed problems pointed out by Sukadev with permissions
revoke. Now we have to perform kobject re-lookup on
each char device open, just like for block ones, so I
think this is OK.
The /proc/devices tune is still in TODO list, as I have
problems with getting majors _in_a_simple_manner_ from a
map, that contains a mix of major/minor pairs in
The second version is here:
Changes from v1:
* Added the block devices support :) It turned out to
be a bit simpler than the char one (or I missed
* Now we can enable/disable not just individual devices,
but the whole major with all its minors (see the TODO
list beyond as well);
* Added the ability to restrict the read/write permissions
to devices, not just visible/invisible state.
The first version was here:
I still don't pay much attention to split this set well, so
this will most likely won't work with git-bisect, but I think
this is OK for now. I will sure split it better when I send
it to Andrew.
The set is prepared against the 2.6.24-rc8-mm1.
To play with it - run a standard procedure:
# mount -t container none /cont/devs -o devices
# mkdir /cont/devs/0
# echo -n $$ > /cont/devs/0/tasks
and tune device permissions.
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