From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx142.postini.com [74.125.245.142]) by kanga.kvack.org (Postfix) with SMTP id 5E75B6B0069 for ; Fri, 15 Jun 2012 06:31:14 -0400 (EDT) Received: from /spool/local by e23smtp04.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 15 Jun 2012 10:10:29 +1000 Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay04.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q5FANl1v1114510 for ; Fri, 15 Jun 2012 20:23:47 +1000 Received: from d23av03.au.ibm.com (loopback [127.0.0.1]) by d23av03.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q5FAV8mI018432 for ; Fri, 15 Jun 2012 20:31:09 +1000 From: "Aneesh Kumar K.V" Subject: [PATCH -V2 1/2] hugetlb: Move all the in use pages to active list Date: Fri, 15 Jun 2012 16:01:02 +0530 Message-Id: <1339756263-20378-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, kamezawa.hiroyu@jp.fujitsu.com, mhocko@suse.cz, akpm@linux-foundation.org Cc: "Aneesh Kumar K.V" From: "Aneesh Kumar K.V" 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 --- mm/hugetlb.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index c57740b..ec7b86e 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); -- 1.7.10 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org