[patch 2/9] mm: memcontrol: fix missing suffix of workingset_restore

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From: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Subject: mm: memcontrol: fix missing suffix of workingset_restore

We forget to add the suffix to the workingset_restore string, so fix it. 
And also update the documentation of cgroup-v2.rst.

Link: https://lkml.kernel.org/r/20200916100030.71698-1-songmuchun@xxxxxxxxxxxxx
Fixes: 170b04b7ae49 ("mm/workingset: prepare the workingset detection infrastructure for anon LRU")
Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Zefan Li <lizefan@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Roman Gushchin <guro@xxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 Documentation/admin-guide/cgroup-v2.rst |   25 +++++++++++++++-------
 mm/memcontrol.c                         |    4 +--
 2 files changed, 20 insertions(+), 9 deletions(-)

--- a/Documentation/admin-guide/cgroup-v2.rst~mm-memcontrol-fix-missing-suffix-of-workingset_restore
+++ a/Documentation/admin-guide/cgroup-v2.rst
@@ -1324,15 +1324,26 @@ PAGE_SIZE multiple when read back.
 	  pgmajfault
 		Number of major page faults incurred
 
-	  workingset_refault
-		Number of refaults of previously evicted pages
+	  workingset_refault_anon
+		Number of refaults of previously evicted anonymous pages.
 
-	  workingset_activate
-		Number of refaulted pages that were immediately activated
+	  workingset_refault_file
+		Number of refaults of previously evicted file pages.
 
-	  workingset_restore
-		Number of restored pages which have been detected as an active
-		workingset before they got reclaimed.
+	  workingset_activate_anon
+		Number of refaulted anonymous pages that were immediately
+		activated.
+
+	  workingset_activate_file
+		Number of refaulted file pages that were immediately activated.
+
+	  workingset_restore_anon
+		Number of restored anonymous pages which have been detected as
+		an active workingset before they got reclaimed.
+
+	  workingset_restore_file
+		Number of restored file pages which have been detected as an
+		active workingset before they got reclaimed.
 
 	  workingset_nodereclaim
 		Number of times a shadow node has been reclaimed
--- a/mm/memcontrol.c~mm-memcontrol-fix-missing-suffix-of-workingset_restore
+++ a/mm/memcontrol.c
@@ -1538,9 +1538,9 @@ static char *memory_stat_format(struct m
 		       memcg_page_state(memcg, WORKINGSET_ACTIVATE_ANON));
 	seq_buf_printf(&s, "workingset_activate_file %lu\n",
 		       memcg_page_state(memcg, WORKINGSET_ACTIVATE_FILE));
-	seq_buf_printf(&s, "workingset_restore %lu\n",
+	seq_buf_printf(&s, "workingset_restore_anon %lu\n",
 		       memcg_page_state(memcg, WORKINGSET_RESTORE_ANON));
-	seq_buf_printf(&s, "workingset_restore %lu\n",
+	seq_buf_printf(&s, "workingset_restore_file %lu\n",
 		       memcg_page_state(memcg, WORKINGSET_RESTORE_FILE));
 	seq_buf_printf(&s, "workingset_nodereclaim %lu\n",
 		       memcg_page_state(memcg, WORKINGSET_NODERECLAIM));
_




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