Hi Daniel, On Mon, Mar 2, 2020 at 5:42 PM Daniel Xu <dxu@xxxxxxxxx> wrote: > > User extended attributes are useful as metadata storage for kernfs > consumers like cgroups. Especially in the case of cgroups, it is useful > to have a central metadata store that multiple processes/services can > use to coordinate actions. > > A concrete example is for userspace out of memory killers. We want to > let delegated cgroup subtree owners (running as non-root) to be able to > say "please avoid killing this cgroup". In server environments this is > less important as everyone is running as root. I would recommend removing the "everyone is running as root" statement as it is not generally true. Shakeel
