Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759484Ab3EGUtd (ORCPT ); Tue, 7 May 2013 16:49:33 -0400 Received: from mail-we0-f172.google.com ([74.125.82.172]:47814 "EHLO mail-we0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756760Ab3EGUtc (ORCPT ); Tue, 7 May 2013 16:49:32 -0400 From: j.glisse@gmail.com To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Jerome Glisse Subject: [PATCH 1/3] mm: honor FOLL_GET flag in follow_hugetlb_page Date: Tue, 7 May 2013 16:45:54 -0400 Message-Id: <1367959554-3218-1-git-send-email-j.glisse@gmail.com> X-Mailer: git-send-email 1.7.11.7 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 869 Lines: 32 From: Jerome Glisse Do not increase page count if FOLL_GET is not set. Signed-off-by: Jerome Glisse --- mm/hugetlb.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 1a12f5b..5d1e46b 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2991,7 +2991,9 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, same_page: if (pages) { pages[i] = mem_map_offset(page, pfn_offset); - get_page(pages[i]); + if (flags & FOLL_GET) { + get_page_foll(pages[i]); + } } if (vmas) -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/