Commit 40f4b1ea authored by Cody P Schafer's avatar Cody P Schafer Committed by Linus Torvalds

mm/vmstat: add note on safety of drain_zonestat

Signed-off-by: default avatarCody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5bc7b8ac
......@@ -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;
......
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