From: Wanpeng Li <liwp@xxxxxxxxxxxxxxxxxx> hugepage_activelist is used to track currently used HugeTLB pages. We can find the in-use HugeTLB pages to support HugeTLB cgroup removal. Don't keep unused page in hugetlb_activelist too long. Otherwise, on cgroup removal we should update the unused page's charge to parent count. To reduce this overhead, remove unused page from hugepage_activelist immediately. Signed-off-by: Wanpeng Li <liwp.linux@xxxxxxxxx> --- mm/hugetlb_cgroup.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c index b834e8d..d819d66 100644 --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -398,6 +398,7 @@ void hugetlb_cgroup_migrate(struct page *oldhpage, struct page *newhpage) spin_lock(&hugetlb_lock); h_cg = hugetlb_cgroup_from_page(oldhpage); set_hugetlb_cgroup(oldhpage, NULL); + list_del(&oldhpage->lru); /* move the h_cg details to new cgroup */ set_hugetlb_cgroup(newhpage, h_cg); -- 1.7.5.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>