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mm: /proc/sys/vm/stat_refresh stop checking monotonic numa stats

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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.

Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2102251514110.13363@eggly.anvils
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hugh Dickins 2021-05-04 18:38:00 -07:00 committed by Linus Torvalds
parent 75083aae11
commit c675790972
1 changed files with 0 additions and 9 deletions
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9
mm/vmstat.c
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@ -1872,15 +1872,6 @@ int vmstat_refresh(struct ctl_table *table, int write,
__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.