__alloc_pages_bulk can call __count_zid_vm_events and zone_statistics
with nr_account = 0.
Fixes: 3e23060b2d0b ("mm/page_alloc: batch the accounting updates in the bulk allocator")
Signed-off-by: Vasily Averin <vvs@xxxxxxxxxxxxx>
---
mm/page_alloc.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 602819a232e5..e67113452ee8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5364,9 +5364,10 @@ unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid,
}
local_unlock_irqrestore(&pagesets.lock, flags);
-
- __count_zid_vm_events(PGALLOC, zone_idx(zone), nr_account);
- zone_statistics(ac.preferred_zoneref->zone, zone, nr_account);
+ if (nr_account) {
+ __count_zid_vm_events(PGALLOC, zone_idx(zone), nr_account);
+ zone_statistics(ac.preferred_zoneref->zone, zone, nr_account);
+ }
if (objcg)
memcg_bulk_post_charge_hook(objcg, nr_pre_charge - nr_account);
--
2.31.1
