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Commit 689bca3b authored by Greg Thelen's avatar Greg Thelen Committed by Jiri Kosina
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memcg: clarify use_hierarchy documentation 



The memcg code does not allow changing memory.use_hierarchy if the
parent cgroup has enabled use_hierarchy.  Update documentation to match
the code.

Signed-off-by: default avatarGreg Thelen <gthelen@google.com>
Acked-by: default avatarKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent c23cf8ba

Documentation/cgroups/memory.txt

+3 −2
Original line number Diff line number Diff line
@@ -485,8 +485,9 @@ The feature can be disabled by 


# echo 0 > memory.use_hierarchy



NOTE1: Enabling/disabling will fail if the cgroup already has other

       cgroups created below it.

NOTE1: Enabling/disabling will fail if either the cgroup already has other

       cgroups created below it, or if the parent cgroup has use_hierarchy

       enabled.



NOTE2: When panic_on_oom is set to "2", the whole system will panic in

       case of an OOM event in any cgroup.