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-rw-r--r--include/linux/cgroup_subsys.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index ec43bce7e1ea..1f36945fd23d 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -62,6 +62,11 @@ SUBSYS(hugetlb)
* Subsystems that implement the can_fork() family of callbacks.
*/
SUBSYS_TAG(CANFORK_START)
+
+#if IS_ENABLED(CONFIG_CGROUP_PIDS)
+SUBSYS(pids)
+#endif
+
SUBSYS_TAG(CANFORK_END)
/*