From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933158AbWFZWfX (ORCPT ); Mon, 26 Jun 2006 18:35:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933160AbWFZWfS (ORCPT ); Mon, 26 Jun 2006 18:35:18 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:35231 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S933158AbWFZWfG (ORCPT ); Mon, 26 Jun 2006 18:35:06 -0400 From: Nigel Cunningham Subject: [Suspend2][ 05/20] [Suspend2] Get the amount of storage needed for the image proper. Date: Tue, 27 Jun 2006 08:35:04 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060626223502.4050.64496.stgit@nigel.suspend2.net> In-Reply-To: <20060626223446.4050.9897.stgit@nigel.suspend2.net> References: <20060626223446.4050.9897.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 Calculate the amount of storage required for the image proper, possibly taking into account the expected compression ratio and possibly also ignoring the extra pagedir1 allowance. Signed-off-by: Nigel Cunningham kernel/power/prepare_image.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/kernel/power/prepare_image.c b/kernel/power/prepare_image.c index 271f904..9f1eb74 100644 --- a/kernel/power/prepare_image.c +++ b/kernel/power/prepare_image.c @@ -107,3 +107,16 @@ static void get_extra_pd1_allowance(void MIN_EXTRA_PAGES_ALLOWANCE); } +/* + * Amount of storage needed, possibly taking into account the + * expected compression ratio and possibly also ignoring our + * allowance for extra pages. + */ +static long main_storage_needed(int use_ecr, + int ignore_extra_pd1_allow) +{ + return ((pagedir1.pageset_size + pagedir2.pageset_size + + (ignore_extra_pd1_allow ? 0 : extra_pd1_pages_allowance)) * + (use_ecr ? suspend_expected_compression_ratio() : 100) / 100); +} + -- Nigel Cunningham nigel at suspend2 dot net