From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan-Bernd Themann Subject: [PATCH 2/2] ehea: add memory remove hotplug support Date: Mon, 4 Feb 2008 14:04:49 +0100 Message-ID: <200802041404.49960.ossthema@de.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: netdev , Christoph Raisch , "Jan-Bernd Themann" , "linux-kernel" , "linux-ppc" , Marcus Eder , Thomas Klein To: Jeff Garzik Return-path: Received: from mtagate3.de.ibm.com ([195.212.29.152]:47000 "EHLO mtagate3.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753526AbYBDNEw (ORCPT ); Mon, 4 Feb 2008 08:04:52 -0500 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Add memory remove hotplug support Signed-off-by: Jan-Bernd Themann --- Comment: This patch depends on the following patch that exports the symbols register_memory_notifier() unregister_memory_notifier() http://lkml.org/lkml/2008/2/1/293 drivers/net/ehea/ehea_main.c | 25 +++++++++++++++++++++++++ 1 files changed, 25 insertions(+), 0 deletions(-) diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 21af674..b75afcc 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include @@ -3480,6 +3481,24 @@ void ehea_crash_handler(void) 0, H_DEREG_BCMC); } +static int ehea_mem_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + switch (action) { + case MEM_OFFLINE: + ehea_info("memory has been removed"); + ehea_rereg_mrs(NULL); + break; + default: + break; + } + return NOTIFY_OK; +} + +static struct notifier_block ehea_mem_nb = { + .notifier_call = ehea_mem_notifier, +}; + static int ehea_reboot_notifier(struct notifier_block *nb, unsigned long action, void *unused) { @@ -3559,6 +3578,10 @@ int __init ehea_module_init(void) if (ret) ehea_info("failed registering reboot notifier"); + ret = register_memory_notifier(&ehea_mem_nb); + if (ret) + ehea_info("failed registering memory remove notifier"); + ret = crash_shutdown_register(&ehea_crash_handler); if (ret) ehea_info("failed registering crash handler"); @@ -3582,6 +3605,7 @@ int __init ehea_module_init(void) out3: ibmebus_unregister_driver(&ehea_driver); out2: + unregister_memory_notifier(&ehea_mem_nb); unregister_reboot_notifier(&ehea_reboot_nb); crash_shutdown_unregister(&ehea_crash_handler); out: @@ -3599,6 +3623,7 @@ static void __exit ehea_module_exit(void) ret = crash_shutdown_unregister(&ehea_crash_handler); if (ret) ehea_info("failed unregistering crash handler"); + unregister_memory_notifier(&ehea_mem_nb); kfree(ehea_fw_handles.arr); kfree(ehea_bcmc_regs.arr); ehea_destroy_busmap(); -- 1.5.2