[PATCH 1/2] hugetlb: Move all the in use pages to active list
From: Aneesh Kumar K.V <hidden>
Date: 2012-06-15 10:08:38
Subsystem:
hugetlb subsystem, memory management, the rest · Maintainers:
Muchun Song, Oscar Salvador, Andrew Morton, Linus Torvalds
From: "Aneesh Kumar K.V" <redacted> 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 <redacted> --- 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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