diff options
Diffstat (limited to 'include/linux/cgroup.h')
| -rw-r--r-- | include/linux/cgroup.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index db99e3b923b1..28853e771f3b 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -693,6 +693,15 @@ struct cgroup_subsys { /* base cftypes, automatically registered with subsys itself */ struct cftype *base_cftypes; + + /* + * A subsystem may depend on other subsystems. When such subsystem + * is enabled on a cgroup, the depended-upon subsystems are enabled + * together if available. Subsystems enabled due to dependency are + * not visible to userland until explicitly enabled. The following + * specifies the mask of subsystems that this one depends on. + */ + unsigned int depends_on; }; #define SUBSYS(_x) extern struct cgroup_subsys _x ## _cgrp_subsys; |