1 files changed, 6 insertions, 0 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 9d3585bb2a7a..4a1822a1a680 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -996,6 +996,12 @@ config MEMCG_KMEM
           the kmem extension can use it to guarantee that no group of processes
           will ever exhaust kernel resources alone.
 
+          WARNING: Current implementation lacks reclaim support. That means
+          allocation attempts will fail when close to the limit even if there
+          are plenty of kmem available for reclaim. That makes this option
+          unusable in real life so DO NOT SELECT IT unless for development
+          purposes.
+
 config CGROUP_HUGETLB
         bool "HugeTLB Resource Controller for Control Groups"
         depends on RESOURCE_COUNTERS && HUGETLB_PAGE