linux-kernel - [PATCH] mm, docs: update memory.stat description with workingset* entries

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Date:   Thu, 11 May 2017 20:18:13 +0100
From:   Roman Gushchin <guro@...com>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Roman Gushchin <guro@...com>, Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Tejun Heo <tj@...nel.org>, Li Zefan <lizefan@...wei.com>,
        cgroups@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mm, docs: update memory.stat description with workingset* entries

Commit 4b4cea91691d ("mm: vmscan: fix IO/refault regression in
cache workingset transition") introduced three new entries in memory
stat file:
     - workingset_refault,
     - workingset_activate,
     - workingset_nodereclaim.

This commit adds a corresponding description to the cgroup v2 docs.

Signed-off-by: Roman Gushchin <guro@...com>
Cc: Johannes Weiner <hannes@...xchg.org>
Cc: Michal Hocko <mhocko@...nel.org>
Cc: Vladimir Davydov <vdavydov.dev@...il.com>
Cc: Tejun Heo <tj@...nel.org>
Cc: Li Zefan <lizefan@...wei.com>
Cc: cgroups@...r.kernel.org
Cc: linux-doc@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 Documentation/cgroup-v2.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt
index e50b95c..dc5e2dc 100644
--- a/Documentation/cgroup-v2.txt
+++ b/Documentation/cgroup-v2.txt
@@ -918,6 +918,18 @@ PAGE_SIZE multiple when read back.
 
 		Number of major page faults incurred
 
+	  workingset_refault
+
+		Number of refaults of previously evicted pages
+
+	  workingset_activate
+
+		Number of refaulted pages that were immediately activated
+
+	  workingset_nodereclaim
+
+		Number of times a shadow node has been reclaimed
+
   memory.swap.current
 
 	A read-only single value file which exists on non-root
-- 
2.7.4