[PATCH 2/2] mm: show zone lruvec state in /proc/zoneinfo

[Konstantin Khlebnikov]

Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
---
 mm/vmstat.c |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 2c813e1..2e77a19 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -20,6 +20,8 @@
 #include <linux/writeback.h>
 #include <linux/compaction.h>
 
+#include "internal.h"
+
 #ifdef CONFIG_VM_EVENT_COUNTERS
 DEFINE_PER_CPU(struct vm_event_state, vm_event_states) = {{0}};
 EXPORT_PER_CPU_SYMBOL(vm_event_states);
@@ -1020,6 +1022,27 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
 		   "\n  start_pfn:         %lu",
 		   zone->all_unreclaimable,
 		   zone->zone_start_pfn);
+	seq_printf(m, "\n  lruvecs");
+	for_each_lruvec_id(i) {
+		struct lruvec *lruvec = zone->lruvec + i;
+		enum lru_list lru;
+
+		seq_printf(m,
+			   "\n    lruvec: %i",
+			   i);
+		for_each_lru(lru)
+			seq_printf(m,
+			   "\n              %s: %lu",
+			   vmstat_text[NR_LRU_BASE + lru],
+			   lruvec->pages_count[lru]);
+		seq_printf(m,
+			   "\n              %s: %lu"
+			   "\n              %s: %lu",
+			   vmstat_text[NR_ISOLATED_ANON],
+			   lruvec->pages_count[LRU_ISOLATED_ANON],
+			   vmstat_text[NR_ISOLATED_FILE],
+			   lruvec->pages_count[LRU_ISOLATED_FILE]);
+	}
 	seq_putc(m, '\n');
 }
 

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