From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750954AbWFZQy1 (ORCPT ); Mon, 26 Jun 2006 12:54:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750898AbWFZQxv (ORCPT ); Mon, 26 Jun 2006 12:53:51 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:45702 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S1750839AbWFZQxS (ORCPT ); Mon, 26 Jun 2006 12:53:18 -0400 From: Nigel Cunningham Subject: [Suspend2][ 06/11] [Suspend2] Register and unregister suspend2 modules. Date: Tue, 27 Jun 2006 02:53:21 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060626165320.10957.71611.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 Routines for suspend2 modules to use at boot or module load/unload. Signed-off-by: Nigel Cunningham kernel/power/modules.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 71 insertions(+), 0 deletions(-) diff --git a/kernel/power/modules.c b/kernel/power/modules.c index 50607f5..6305fa2 100644 --- a/kernel/power/modules.c +++ b/kernel/power/modules.c @@ -116,3 +116,74 @@ int suspend_print_module_debug_info(char return len; } +/* + * suspend_register_module + * + * Register a module. + */ +int suspend_register_module(struct suspend_module_ops *module) +{ + if (suspend_find_module_given_name(module->name)) + return -EBUSY; + + switch (module->type) { + case FILTER_MODULE: + list_add_tail(&module->type_list, + &suspend_filters); + suspend_num_filters++; + break; + + case WRITER_MODULE: + list_add_tail(&module->type_list, + &suspend_writers); + suspend_num_writers++; + break; + + case MISC_MODULE: + break; + + default: + printk("Hmmm. Module '%s' has an invalid type." + " It has been ignored.\n", module->name); + return -EINVAL; + } + list_add_tail(&module->module_list, &suspend_modules); + suspend_num_modules++; + + return 0; +} + +/* + * suspend_unregister_module + * + * Remove a module. + */ +void suspend_unregister_module(struct suspend_module_ops *module) +{ + switch (module->type) { + case FILTER_MODULE: + list_del(&module->type_list); + suspend_num_filters--; + break; + + case WRITER_MODULE: + list_del(&module->type_list); + suspend_num_writers--; + if (suspend_active_writer == module) { + suspend_active_writer = NULL; + clear_suspend_state(SUSPEND_CAN_RESUME); + clear_suspend_state(SUSPEND_CAN_SUSPEND); + } + break; + + case MISC_MODULE: + break; + + default: + printk("Hmmm. Module '%s' has an invalid type." + " It has been ignored.\n", module->name); + return; + } + list_del(&module->module_list); + suspend_num_modules--; +} -- Nigel Cunningham nigel at suspend2 dot net