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

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

mm/vmstat.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -493,6 +493,10 @@ void refresh_cpu_vm_stats(int cpu) 
			atomic_long_add(global_diff[i], &vm_stat[i]);

			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)

void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)

{

{

	int i;

	int i;