Unverified Commit 0ddd395e authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14040 hwpoison, memory_hotplug: lock page before unmap for hwpoisoned page 

Merge Pull Request from: @ci-robot 
 
PR sync from: Wupeng Ma <mawupeng1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/STJQDAK3Q4V67VATYMMRGWE3CG4XPACF/ 
 
https://gitee.com/openeuler/kernel/issues/IB8TSF 
 
Link:https://gitee.com/openeuler/kernel/pulls/14040

 

Reviewed-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: default avatarLi Nan <linan122@huawei.com>
Signed-off-by: default avatarLi Nan <linan122@huawei.com>
parents 14710d3c 76485b68

mm/memory_hotplug.c

+4 −1
Original line number Diff line number Diff line
@@ -1160,8 +1160,11 @@ int do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) 
		if (PageHWPoison(page)) {

			if (WARN_ON(PageLRU(page)))

				isolate_lru_page(page);

			if (page_mapped(page))

			if (page_mapped(page)) {

				lock_page(page);

				try_to_unmap(page, TTU_IGNORE_MLOCK);

				unlock_page(page);

			}

			continue;

		}