mm/hugetlb_cgroup: remove unnecessary VM_BUG_ON_PAGE in hugetlb_cgroup_migrate()

!PageHuge(oldhpage) is implicitly checked in page_hstate() above, so we
remove this explicit one.

Link: https://lkml.kernel.org/r/20210308112809.26107-4-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 603a131..726b85f 100644 (file)
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -784,7 +784,6 @@ void hugetlb_cgroup_migrate(struct page *oldhpage, struct page *newhpage)
        if (hugetlb_cgroup_disabled())
                return;
 
-       VM_BUG_ON_PAGE(!PageHuge(oldhpage), oldhpage);
        spin_lock(&hugetlb_lock);
        h_cg = hugetlb_cgroup_from_page(oldhpage);
        h_cg_rsvd = hugetlb_cgroup_from_page_rsvd(oldhpage);