From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750812AbWFZRAr (ORCPT ); Mon, 26 Jun 2006 13:00:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750880AbWFZQxK (ORCPT ); Mon, 26 Jun 2006 12:53:10 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:43910 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S1750812AbWFZQxI (ORCPT ); Mon, 26 Jun 2006 12:53:08 -0400 From: Nigel Cunningham Subject: [Suspend2][ 03/11] [Suspend2] Get memory needed for Suspend2 modules. Date: Tue, 27 Jun 2006 02:53:12 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060626165310.10957.73619.stgit@nigel.suspend2.net> In-Reply-To: <20060626165301.10957.62592.stgit@nigel.suspend2.net> References: <20060626165301.10957.62592.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 Determine how much free memory should be available for Suspend2 modules to do their work while reading and writing the image. Signed-off-by: Nigel Cunningham kernel/power/modules.c | 22 ++++++++++++++++++++++ 1 files changed, 22 insertions(+), 0 deletions(-) diff --git a/kernel/power/modules.c b/kernel/power/modules.c index 60c7c7b..ff9b9d7 100644 --- a/kernel/power/modules.c +++ b/kernel/power/modules.c @@ -49,3 +49,25 @@ unsigned long suspend_header_storage_for return bytes + sizeof(struct suspend_module_header); } +/* + * suspend_memory_for_modules + * + * Returns the amount of memory requested by modules for + * doing their work during the cycle. + */ + +unsigned long suspend_memory_for_modules(void) +{ + unsigned long bytes = 0; + struct suspend_module_ops *this_module; + + list_for_each_entry(this_module, &suspend_modules, module_list) { + if (this_module->disabled) + continue; + if (this_module->memory_needed) + bytes += this_module->memory_needed(); + } + + return ((bytes + PAGE_SIZE - 1) >> PAGE_SHIFT); +} + -- Nigel Cunningham nigel at suspend2 dot net