diff --git a/mm/zswapd.c b/mm/zswapd.c
index 65d0c102c808900702d0fc0d76c34a4bb373b798..89383ab58c6ad3c5f8ab6ed29cf05f4824b0c36e 100644
--- a/mm/zswapd.c
+++ b/mm/zswapd.c
@@ -87,8 +87,8 @@ u64 swapin_memcg(struct mem_cgroup *memcg, u64 req_size)
 	u64 ratio = atomic64_read(&memcg->memcg_reclaimed.ub_ufs2zram_ratio);
 	struct group_swap_device *gsdev = NULL;
 
-	if (req_size > swap_size * ratio / ESWAP_PERCENT_CONSTANT)
-		req_size = swap_size * ratio / ESWAP_PERCENT_CONSTANT;
+	if (req_size > div_u64(swap_size * ratio, ESWAP_PERCENT_CONSTANT))
+		req_size = div_u64(swap_size * ratio, ESWAP_PERCENT_CONSTANT);
 	down_read(&gs_lock);
 	list_for_each_entry(gsdev, &gs_list, list) {
 		read_size += gsdev->ops->group_read(memcg->id.id, req_size - read_size,
@@ -110,10 +110,10 @@ static u64 swapout_memcg(struct mem_cgroup *memcg, u64 req_size)
 	u32 ratio = atomic_read(&memcg->memcg_reclaimed.ub_zram2ufs_ratio);
 	struct group_swap_device *gsdev = NULL;
 
-	if (all_size * ratio / ESWAP_PERCENT_CONSTANT <= swap_size)
+	if (div_u64(all_size * ratio, ESWAP_PERCENT_CONSTANT) <= swap_size)
 		return 0;
-	if (req_size > all_size * ratio / ESWAP_PERCENT_CONSTANT - swap_size)
-		req_size = all_size * ratio / ESWAP_PERCENT_CONSTANT - swap_size;
+	if (req_size > div_u64(all_size * ratio, ESWAP_PERCENT_CONSTANT) - swap_size)
+		req_size = div_u64(all_size * ratio, ESWAP_PERCENT_CONSTANT) - swap_size;
 	down_read(&gs_lock);
 	list_for_each_entry(gsdev, &gs_list, list) {
 		write_size += gsdev->ops->group_write(memcg->id.id, req_size - write_size,