Commit c6757909 authored by Hugh Dickins's avatar Hugh Dickins Committed by Linus Torvalds
Browse files

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: default avatarHugh Dickins <hughd@google.com>
Acked-by: default avatarRoman 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 75083aae

mm/vmstat.c

+0 −9
Original line number Diff line number Diff line
@@ -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.