From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751277AbWFZXJF (ORCPT ); Mon, 26 Jun 2006 19:09:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933226AbWFZWjH (ORCPT ); Mon, 26 Jun 2006 18:39:07 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:65439 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S933249AbWFZWia (ORCPT ); Mon, 26 Jun 2006 18:38:30 -0400 From: Nigel Cunningham Subject: [Suspend2][ 23/32] [Suspend2] Advance one page in the extent state. Date: Tue, 27 Jun 2006 08:38:28 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060626223827.4376.14290.stgit@nigel.suspend2.net> In-Reply-To: <20060626223706.4376.96042.stgit@nigel.suspend2.net> References: <20060626223706.4376.96042.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 Advance one page in the list of devices and blocks (extent state). Signed-off-by: Nigel Cunningham kernel/power/suspend_block_io.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/kernel/power/suspend_block_io.c b/kernel/power/suspend_block_io.c index fbce186..fdbbe4b 100644 --- a/kernel/power/suspend_block_io.c +++ b/kernel/power/suspend_block_io.c @@ -796,3 +796,22 @@ static int forward_extra_blocks(void) return 0; } +static int forward_one_page(void) +{ + int at_start = (suspend_writer_posn.current_chain == -1); + + /* Have to go forward one to ensure we're on the right chain, + * before we can know how many more blocks to skip.*/ + suspend_extent_state_next(&suspend_writer_posn); + + if (!at_start) + if (forward_extra_blocks()) + return -ENODATA; + + if (extra_page_forward) { + extra_page_forward = 0; + return forward_one_page(); + } + + return 0; +} -- Nigel Cunningham nigel at suspend2 dot net