On Tue, Jul 24, 2012 at 06:03:33PM -0400, Aristeu Rozanski 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. Any comments on these patches? -- 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
