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-rw-r--r--mm/page_alloc.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8c4f1b220ab9..c1c6cb78e5ca 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1257,15 +1257,11 @@ static int rmqueue_bulk(struct zone *zone, unsigned int order,
void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp)
{
unsigned long flags;
- int to_drain;
- unsigned long batch;
+ int to_drain, batch;
local_irq_save(flags);
batch = ACCESS_ONCE(pcp->batch);
- if (pcp->count >= batch)
- to_drain = batch;
- else
- to_drain = pcp->count;
+ to_drain = min(pcp->count, batch);
if (to_drain > 0) {
free_pcppages_bulk(zone, to_drain, pcp);
pcp->count -= to_drain;