netcls_cgroup: introduce cgroup_cls_state->is_local
cs->is_local will be used to indicate whether the cgroup has its own
configuration or inherited from the parent. It's set when classid is
configured by writing a positive value to cgroup file
"net_cls.classid" and cleared when a negative value is written.
is_local is visible to userland via cgroup file "net_cls.is_local" so
that userland can know whether a cgroup has its config or not.
This patch doesn't yet change hierarchy behavior. The next patch will
use is_local to implement proper hierarchy.
Signed-off-by: Tejun Heo <tj@kernel.org>
2 files changed
