Unverified Commit fe66df0f authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!11430 Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again" 

Merge Pull Request from: @ci-robot 
 
PR sync from: Kaixiong Yu <yukaixiong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/F37FTMSOEDCZXWUNKF6CFA6SS7TZING7/ 
 
https://gitee.com/openeuler/kernel/issues/IAD6H2 
 
Link:https://gitee.com/openeuler/kernel/pulls/11430

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 674ed576 3944b23e

mm/page-writeback.c

+1 −1
Original line number Diff line number Diff line
@@ -1541,7 +1541,7 @@ static inline void wb_dirty_limits(struct dirty_throttle_control *dtc) 
	 */

	dtc->wb_thresh = __wb_calc_thresh(dtc);

	dtc->wb_bg_thresh = dtc->thresh ?

		div64_u64(dtc->wb_thresh * dtc->bg_thresh, dtc->thresh) : 0;

		div_u64((u64)dtc->wb_thresh * dtc->bg_thresh, dtc->thresh) : 0;



	/*

	 * In order to avoid the stacked BDI deadlock we need