The patch titled
Subject: mm, vmstat: print node-based stats in zoneinfo file
has been removed from the -mm tree. Its filename was
mm-vmstat-print-node-based-stats-in-zoneinfo-file.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Subject: mm, vmstat: print node-based stats in zoneinfo file
There are a number of stats that were previously accessible via zoneinfo
that are now invisible. While it is possible to create a new file for the
node stats, this may be missed by users. Instead this patch prints the
stats under the first populated zone in /proc/zoneinfo.
Link: http://lkml.kernel.org/r/1467970510-21195-34-git-send-email-mgorman@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Acked-by: Hillf Danton <hillf.zj@xxxxxxxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmstat.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff -puN mm/vmstat.c~mm-vmstat-print-node-based-stats-in-zoneinfo-file mm/vmstat.c
--- a/mm/vmstat.c~mm-vmstat-print-node-based-stats-in-zoneinfo-file
+++ a/mm/vmstat.c
@@ -1415,11 +1415,35 @@ static const struct file_operations page
.release = seq_release,
};
+static bool is_zone_first_populated(pg_data_t *pgdat, struct zone *zone)
+{
+ int zid;
+
+ for (zid = 0; zid < MAX_NR_ZONES; zid++) {
+ struct zone *compare = &pgdat->node_zones[zid];
+
+ if (populated_zone(compare))
+ return zone == compare;
+ }
+
+ /* The zone must be somewhere! */
+ WARN_ON_ONCE(1);
+ return false;
+}
+
static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
struct zone *zone)
{
int i;
seq_printf(m, "Node %d, zone %8s", pgdat->node_id, zone->name);
+ if (is_zone_first_populated(pgdat, zone)) {
+ seq_printf(m, "\n per-node stats");
+ for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++) {
+ seq_printf(m, "\n %-12s %lu",
+ vmstat_text[i + NR_VM_ZONE_STAT_ITEMS],
+ node_page_state(pgdat, i));
+ }
+ }
seq_printf(m,
"\n pages free %lu"
"\n min %lu"
_
Patches currently in -mm which might be from mgorman@xxxxxxxxxxxxxxxxxxx are
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