提交 79dbb236 编写于 作者: A Aneesh Kumar K.V 提交者: Linus Torvalds

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: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: NMichal Hocko <mhocko@suse.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 585e27ea
...@@ -928,8 +928,14 @@ struct page *alloc_huge_page_node(struct hstate *h, int nid) ...@@ -928,8 +928,14 @@ struct page *alloc_huge_page_node(struct hstate *h, int nid)
page = dequeue_huge_page_node(h, nid); page = dequeue_huge_page_node(h, nid);
spin_unlock(&hugetlb_lock); spin_unlock(&hugetlb_lock);
if (!page) if (!page) {
page = alloc_buddy_huge_page(h, nid); 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; return page;
} }
...@@ -1155,6 +1161,9 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, ...@@ -1155,6 +1161,9 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
hugepage_subpool_put_pages(spool, chg); hugepage_subpool_put_pages(spool, chg);
return ERR_PTR(-ENOSPC); 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); set_page_private(page, (unsigned long)spool);
......
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