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-rw-r--r--mm/vmstat.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index c823776f705..f42745e6578 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -493,6 +493,10 @@ void refresh_cpu_vm_stats(int cpu)
atomic_long_add(global_diff[i], &vm_stat[i]);
}
+/*
+ * this is only called if !populated_zone(zone), which implies no other users of
+ * pset->vm_stat_diff[] exsist.
+ */
void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)
{
int i;