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-rw-r--r--Documentation/cgroups/memory.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index e726fb0df71..1f59a1a38bd 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -420,6 +420,8 @@ NOTE2: It is recommended to set the soft limit always below the hard limit,
Users can move charges associated with a task along with task migration, that
is, uncharge task's pages from the old cgroup and charge them to the new cgroup.
+This feature is not supported in !CONFIG_MMU environments because of lack of
+page tables.
8.1 Interface