From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933427AbWF0EqA (ORCPT ); Tue, 27 Jun 2006 00:46:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030688AbWF0Emo (ORCPT ); Tue, 27 Jun 2006 00:42:44 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:55259 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S1030704AbWF0Eml (ORCPT ); Tue, 27 Jun 2006 00:42:41 -0400 From: Nigel Cunningham Subject: [Suspend2][ 04/13] [Suspend2] Follow page routine. Date: Tue, 27 Jun 2006 14:42:40 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060627044238.15066.77126.stgit@nigel.suspend2.net> In-Reply-To: <20060627044226.15066.7403.stgit@nigel.suspend2.net> References: <20060627044226.15066.7403.stgit@nigel.suspend2.net> Content-Type: text/plain; charset=utf-8; format=fixed Content-Transfer-Encoding: 8bit User-Agent: StGIT/0.9 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This variant of the follow page routine is used by Suspend2 to find existing pages that belong to a process without changing anything in the process. Signed-off-by: Nigel Cunningham mm/memory.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 0ec7bc6..1021043 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -958,6 +958,15 @@ no_page_table: return page; } +/* + * We want the address of the page for Suspend2 to mark as being in pageset1. + */ + +struct page *suspend2_follow_page(struct mm_struct *mm, unsigned long address) +{ + return follow_page(mm->mmap, address, 0); +} + int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, int len, int write, int force, struct page **pages, struct vm_area_struct **vmas) -- Nigel Cunningham nigel at suspend2 dot net