mm/memcontrol: export memcg.swap watermark via sysfs for v2 memcg

[linux-2.6-microblaze.git] / Documentation / admin-guide / cgroup-v2.rst

diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index f67c082..1ffe019 100644 (file)
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1582,6 +1582,13 @@ PAGE_SIZE multiple when read back.
 
        Healthy workloads are not expected to reach this limit.
 
+  memory.swap.peak
+       A read-only single value file which exists on non-root
+       cgroups.
+
+       The max swap usage recorded for the cgroup and its
+       descendants since the creation of the cgroup.
+
   memory.swap.max
        A read-write single value file which exists on non-root
        cgroups.  The default is "max".