From 79dbb2368ae3515fad9c8b7c8f831cd86be59b1d Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Tue, 31 Jul 2012 16:42:32 -0700 Subject: [PATCH] hugetlb: move all the in use pages to active list When we fail to allocate pages from the reserve pool, hugetlb tries 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 Reviewed-by: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/hugetlb.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index c57740bb203a..ec7b86ebf9d9 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -928,8 +928,14 @@ 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); + if (page) { + spin_lock(&hugetlb_lock); + list_move(&page->lru, &h->hugepage_activelist); + spin_unlock(&hugetlb_lock); + } + } return page; } @@ -1155,6 +1161,9 @@ 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);