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.
v2: Daniel pointed out that cftype->write_u64() accepts base prefix
(e.g. 0x10 for 16). Updated "%lld" to "%lli".
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
Cc: Daniel Wagner <wagi@xxxxxxxxx>