Hello, again. On Wed, Jan 10, 2018 at 09:33:40AM -0800, Tejun Heo wrote: > Hello, Michael. > > On Wed, Jan 10, 2018 at 06:31:20PM +0100, Michael Kerrisk (man-pages) wrote: > > So, I am confused. According to Documentation/cgroup-v2.txt, > > cgoup.threads is delegated: > > > > [[ > > Model of Delegation > > ~~~~~~~~~~~~~~~~~~~ > > > > A cgroup can be delegated in two ways. First, to a less privileged > > user by granting write access of the directory and its "cgroup.procs", > > "cgroup.threads" and "cgroup.subtree_control" files to the user. > > Second, if the "nsdelegate" mount option is set, automatically to a > > cgroup namespace on namespace creation. > > ]] > > > > So, is that a mistake in that text file? > > Yes, it is. I probably copy&pasted from an earlier version where we > were marking threaded domains instead of threaded roots. Will fix it > right away. Jesus christ, sorry. Roman and the document are right. * cgroup.type is not delegatble, marking it threaded makes the cgroup join the parent's domain. * cgroup.threads is delegatable, because marking the child cgroups as threaded make them join the subtree root, and the threads can be dispersed across the parent - the delegated root here - and the subtree of the child which is marked threaded. I'll apply Roman's patch. Sorry about the confusion. 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
