Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756171Ab0GLPnL (ORCPT ); Mon, 12 Jul 2010 11:43:11 -0400 Received: from e32.co.us.ibm.com ([32.97.110.150]:34804 "EHLO e32.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752602Ab0GLPnH (ORCPT ); Mon, 12 Jul 2010 11:43:07 -0400 Message-ID: <4C3B3808.3000803@austin.ibm.com> Date: Mon, 12 Jul 2010 10:43:04 -0500 From: Nathan Fontenot User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.10) Gecko/20100527 Thunderbird/3.0.5 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: linuxppc-dev@ozlabs.org Subject: [PATCH 2/7] Create the new 'end_phys_index' file References: <4C3B3446.5090302@austin.ibm.com> In-Reply-To: <4C3B3446.5090302@austin.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2794 Lines: 76 This patch adds a new 'end_phys_index' file to each memory sysfs directory to report the physical index of the last memory section coverd by the sysfs directory. Signed -off-by: Nathan Fontenot --- drivers/base/memory.c | 14 +++++++++++++- include/linux/memory.h | 3 +++ 2 files changed, 16 insertions(+), 1 deletion(-) Index: linux-2.6/drivers/base/memory.c =================================================================== --- linux-2.6.orig/drivers/base/memory.c 2010-07-09 14:23:09.000000000 -0500 +++ linux-2.6/drivers/base/memory.c 2010-07-09 14:23:17.000000000 -0500 @@ -121,7 +121,15 @@ { struct memory_block *mem = container_of(dev, struct memory_block, sysdev); - return sprintf(buf, "%08lx\n", mem->phys_index); + return sprintf(buf, "%08lx\n", mem->start_phys_index); +} + +static ssize_t show_mem_end_phys_index(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) +{ + struct memory_block *mem = + container_of(dev, struct memory_block, sysdev); + return sprintf(buf, "%08lx\n", mem->end_phys_index); } /* @@ -327,6 +335,7 @@ } static SYSDEV_ATTR(phys_index, 0444, show_mem_phys_index, NULL); +static SYSDEV_ATTR(end_phys_index, 0444, show_mem_end_phys_index, NULL); static SYSDEV_ATTR(state, 0644, show_mem_state, store_mem_state); static SYSDEV_ATTR(phys_device, 0444, show_phys_device, NULL); static SYSDEV_ATTR(removable, 0444, show_mem_removable, NULL); @@ -536,6 +545,8 @@ if (!ret) ret = mem_create_simple_file(mem, phys_index); if (!ret) + ret = mem_create_simple_file(mem, end_phys_index); + if (!ret) ret = mem_create_simple_file(mem, state); if (!ret) ret = mem_create_simple_file(mem, phys_device); @@ -581,6 +592,7 @@ if (list_empty(&mem->sections)) { unregister_mem_sect_under_nodes(mem); mem_remove_simple_file(mem, phys_index); + mem_remove_simple_file(mem, end_phys_index); mem_remove_simple_file(mem, state); mem_remove_simple_file(mem, phys_device); mem_remove_simple_file(mem, removable); Index: linux-2.6/include/linux/memory.h =================================================================== --- linux-2.6.orig/include/linux/memory.h 2010-07-09 14:22:44.000000000 -0500 +++ linux-2.6/include/linux/memory.h 2010-07-09 14:23:17.000000000 -0500 @@ -29,6 +29,9 @@ struct memory_block { unsigned long state; + unsigned long start_phys_index; + unsigned long end_phys_index; + /* * This serializes all state change requests. It isn't * held during creation because the control files are -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/