mm/hugetlb: a page from buddy is not on any list

The page allocated from buddy is not on any list, so just use list_add()
is enough.

Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: https://lkml.kernel.org/r/20200831022351.20916-6-richard.weiyang@linux.alibaba.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 31586a1..a3aea2c 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2416,7 +2416,7 @@ struct page *alloc_huge_page(struct vm_area_struct *vma,
                        h->resv_huge_pages--;
                }
                spin_lock(&hugetlb_lock);
-               list_move(&page->lru, &h->hugepage_activelist);
+               list_add(&page->lru, &h->hugepage_activelist);
                /* Fall through */
        }
        hugetlb_cgroup_commit_charge(idx, pages_per_huge_page(h), h_cg, page);