diff --git a/init/Kconfig b/init/Kconfig
index 56725a4..f59eafe 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -490,6 +490,10 @@
 	  the share of walltime in which some or all tasks in the system are
 	  delayed due to contention of the respective resource.
 
+	  In kernels with cgroup support, cgroups (cgroup2 only) will
+	  have cpu.pressure, memory.pressure, and io.pressure files,
+	  which aggregate pressure stalls for the grouped tasks only.
+
 	  For more details see Documentation/accounting/psi.txt.
 
 	  Say N if unsure.