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-rw-r--r--kernel/cgroup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 62f1a5231fe9..2727f9238359 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2569,6 +2569,7 @@ static int proc_cgroup_show(struct seq_file *m, void *v)
/* Skip this hierarchy if it has no active subsystems */
if (!root->actual_subsys_bits)
continue;
+ seq_printf(m, "%lu:", root->subsys_bits);
for_each_subsys(root, ss)
seq_printf(m, "%s%s", count++ ? "," : "", ss->name);
seq_putc(m, ':');