PR sync from: Yu Liao liaoyu15@huawei.com https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/NTM2QZ4LH7HMKTM4R6D5XYS3JUWIXVRL/
#I8MK3O:mm: Add sysctl to clear free list pages
git checkout OLK-6.6
git pull https://gitee.com/ci-robot/kernel.git patch-1704163232
git push origin OLK-6.6