On Mon, Jan 13, 2014 at 09:01:49AM +0100, Jan Kaluza wrote: > Server-like processes in many cases need credentials and other > metadata of the peer, to decide if the calling process is allowed to > request a specific action, or the server just wants to log away this > type of information for auditing tasks. > > The current practice to retrieve such process metadata is to look that > information up in procfs with the $PID received over SCM_CREDENTIALS. > This is sufficient for long-running tasks, but introduces a race which > cannot be worked around for short-living processes; the calling > process and all the information in /proc/$PID/ is gone before the > receiver of the socket message can look it up. > > This introduces a new SCM type called SCM_CGROUP to allow the direct > attaching of "cgroup_path" to SCM, which is significantly more > efficient and will reliably avoid the race with the round-trip over > procfs. > > Signed-off-by: Jan Kaluza <jkaluza@xxxxxxxxxx> For cgroup related part: Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun -- 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
