From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
When we fail to allocate pages from the reserve pool, hugetlb
do try to allocate huge pages using alloc_buddy_huge_page.
Add these to the active list. We also need to add the huge
page we allocate when we soft offline the oldpage to active
list.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index c57740b..ee4da3b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -928,8 +928,10 @@ struct page *alloc_huge_page_node(struct hstate *h, int nid)
page = dequeue_huge_page_node(h, nid);
spin_unlock(&hugetlb_lock);
- if (!page)
+ if (!page) {
page = alloc_buddy_huge_page(h, nid);
+ list_move(&page->lru, &h->hugepage_activelist);
+ }
return page;
}
@@ -1155,6 +1157,9 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
hugepage_subpool_put_pages(spool, chg);
return ERR_PTR(-ENOSPC);
}
+ spin_lock(&hugetlb_lock);
+ list_move(&page->lru, &h->hugepage_activelist);
+ spin_unlock(&hugetlb_lock);
}
set_page_private(page, (unsigned long)spool);
--
1.7.10
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