Unverified Commit d57eaffd authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!1374 etmem: fix the div 0 problem in swapcache reclaim process 

Merge Pull Request from: @ci-robot 
 
PR sync from: liubo <liubo254@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/ZQ7VFVIBVFWTAG7WEO5ZIGMIIEHJTPHW/ 
 
 
Link:https://gitee.com/openeuler/kernel/pulls/1374

 

Reviewed-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents 75b135ea 248e7033

mm/vmscan.c

+5 −2
Original line number Diff line number Diff line
@@ -4819,9 +4819,12 @@ int do_swapcache_reclaim(unsigned long *swapcache_watermark, 
		for_each_node_state(nid, N_MEMORY) {

			cond_resched();



			nr_to_reclaim[nid_num] = (swapcache_to_reclaim / (swapcache_total_reclaimable / nr[nid_num]));

			nr_to_reclaim[nid_num] = (swapcache_total_reclaimable == 0) ? 0 :

						 ((swapcache_to_reclaim * nr[nid_num]) /

						   swapcache_total_reclaimable);

			reclaim_page_count += reclaim_swapcache_pages_from_list(nid,

						&swapcache_list[nid_num], nr_to_reclaim[nid_num], false);

						&swapcache_list[nid_num],

						nr_to_reclaim[nid_num], false);

			nid_num++;

		}