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Subject[PATCH 4/4] mm: /proc//sys/vm/stat_refresh stop checking monotonic numa stats
All of the VM NUMA stats are event counts, incremented never decremented:
it is not very useful for vmstat_refresh() to check them throughout their
first aeon, then warn on them throughout their next.

Signed-off-by: Hugh Dickins <hughd@google.com>
---

mm/vmstat.c | 9 ---------
1 file changed, 9 deletions(-)

--- vmstat3/mm/vmstat.c 2021-02-25 12:42:15.000000000 -0800
+++ vmstat4/mm/vmstat.c 2021-02-25 12:44:20.000000000 -0800
@@ -1854,15 +1854,6 @@ int vmstat_refresh(struct ctl_table *tab
__func__, zone_stat_name(i), val);
}
}
-#ifdef CONFIG_NUMA
- for (i = 0; i < NR_VM_NUMA_STAT_ITEMS; i++) {
- val = atomic_long_read(&vm_numa_stat[i]);
- if (val < 0) {
- pr_warn("%s: %s %ld\n",
- __func__, numa_stat_name(i), val);
- }
- }
-#endif
for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++) {
/*
* Skip checking stats known to go negative occasionally.
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