The patch titled
Subject: mm: /proc/sys/vm/stat_refresh stop checking monotonic numa stats
has been added to the -mm tree. Its filename is
mm-proc-sys-vm-stat_refresh-stop-checking-monotonic-numa-stats.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-proc-sys-vm-stat_refresh-stop-checking-monotonic-numa-stats.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-proc-sys-vm-stat_refresh-stop-checking-monotonic-numa-stats.patch
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------------------------------------------------------
From: Hugh Dickins <hughd@xxxxxxxxxx>
Subject: 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.
Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2102251514110.13363@eggly.anvils
Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
Acked-by: Roman Gushchin <guro@xxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmstat.c | 9 ---------
1 file changed, 9 deletions(-)
--- a/mm/vmstat.c~mm-proc-sys-vm-stat_refresh-stop-checking-monotonic-numa-stats
+++ a/mm/vmstat.c
@@ -1872,15 +1872,6 @@ 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.
_
Patches currently in -mm which might be from hughd@xxxxxxxxxx are
mm-restore-node-stat-checking-in-proc-sys-vm-stat_refresh.patch
mm-no-more-einval-from-proc-sys-vm-stat_refresh.patch
mm-proc-sys-vm-stat_refresh-skip-checking-known-negative-stats.patch
mm-proc-sys-vm-stat_refresh-stop-checking-monotonic-numa-stats.patch
