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[PATCH] cgroup: add documentation for pids.events file

cgroup: add documentation for pids.events file

Document the event counters file for pid cgroups.

Signed-off-by: Tibor Billes <tbilles@xxxxxxx>
 Documentation/cgroup-v1/pids.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/cgroup-v1/pids.txt b/Documentation/cgroup-v1/pids.txt
index 1a078b5..e105d70 100644
--- a/Documentation/cgroup-v1/pids.txt
+++ b/Documentation/cgroup-v1/pids.txt
@@ -33,6 +33,9 @@ limit in the hierarchy is followed).
 pids.current tracks all child cgroup hierarchies, so parent/pids.current is a
 superset of parent/child/pids.current.
+The pids.events file contains event counters:
+  - max: Number of times fork failed because limit was hit.