On Thu, Aug 16, 2012 at 01:08:44PM -0700, Andrew Morton wrote: > On Thu, 09 Aug 2012 15:04:14 -0400 > aris@xxxxxxxxx wrote: > > > The original model of device_cgroup is having a whitelist where all the > > allowed devices are listed. The problem with this approach is that is > > impossible to have the case of allowing everything but few devices. > > > > The reason for that lies in the way the whitelist is handled internally: > > since there's only a whitelist, the "all devices" entry would have to be > > removed and replaced by the entire list of possible devices but the ones > > that are being denied. Since dev_t is 32 bits long, representing the allowed > > devices as a bitfield is not memory efficient. > > > > This patch replaces the "whitelist" by a "exceptions" list and the default > > policy is kept as "deny_all" variable in dev_cgroup structure. > > The patches look reasonable to me. I suggest you resend them after > kernel summit and cc a few additional people: Serge Hallyn, Pavel > Emelyanov and James Morris. thanks, will do. will include the checkpatch fixes as well. -- Aristeu -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
