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-rw-r--r--Documentation/admin-guide/cgroup-v2.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index d3344218010c..3dad62b1e11c 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1755,6 +1755,8 @@ The following nested keys are defined.
Note that this is subtly different from setting memory.swap.max to
0, as it still allows for pages to be written to the zswap pool.
+ This setting has no effect if zswap is disabled, and swapping
+ is allowed unless memory.swap.max is set to 0.
memory.pressure
A read-only nested-keyed file.