[patch 070/135] mm/memcontrol.c: fix memory.stat item ordering

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From: Johannes Weiner <hannes@xxxxxxxxxxx>
Subject: mm/memcontrol.c: fix memory.stat item ordering

The refault stats go better with the page fault stats, and are of
higher interest than the stats on LRU operations. In fact they used to
be grouped together; when the LRU operation stats were added later on,
they were wedged in between.

Move them back together. Documentation/admin-guide/cgroup-v2.rst
already lists them in the right order.

Link: http://lkml.kernel.org/r/20181010140239.GA2527@xxxxxxxxxxx
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/memcontrol.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

--- a/mm/memcontrol.c~mm-memcontrol-fix-memorystat-item-ordering
+++ a/mm/memcontrol.c
@@ -5597,6 +5597,13 @@ static int memory_stat_show(struct seq_f
 	seq_printf(m, "pgfault %lu\n", acc.events[PGFAULT]);
 	seq_printf(m, "pgmajfault %lu\n", acc.events[PGMAJFAULT]);
 
+	seq_printf(m, "workingset_refault %lu\n",
+		   acc.stat[WORKINGSET_REFAULT]);
+	seq_printf(m, "workingset_activate %lu\n",
+		   acc.stat[WORKINGSET_ACTIVATE]);
+	seq_printf(m, "workingset_nodereclaim %lu\n",
+		   acc.stat[WORKINGSET_NODERECLAIM]);
+
 	seq_printf(m, "pgrefill %lu\n", acc.events[PGREFILL]);
 	seq_printf(m, "pgscan %lu\n", acc.events[PGSCAN_KSWAPD] +
 		   acc.events[PGSCAN_DIRECT]);
@@ -5607,13 +5614,6 @@ static int memory_stat_show(struct seq_f
 	seq_printf(m, "pglazyfree %lu\n", acc.events[PGLAZYFREE]);
 	seq_printf(m, "pglazyfreed %lu\n", acc.events[PGLAZYFREED]);
 
-	seq_printf(m, "workingset_refault %lu\n",
-		   acc.stat[WORKINGSET_REFAULT]);
-	seq_printf(m, "workingset_activate %lu\n",
-		   acc.stat[WORKINGSET_ACTIVATE]);
-	seq_printf(m, "workingset_nodereclaim %lu\n",
-		   acc.stat[WORKINGSET_NODERECLAIM]);
-
 	return 0;
 }
 
_



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