From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933182AbWFZXhf (ORCPT ); Mon, 26 Jun 2006 19:37:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933136AbWFZWeo (ORCPT ); Mon, 26 Jun 2006 18:34:44 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:28575 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S933112AbWFZWeU (ORCPT ); Mon, 26 Jun 2006 18:34:20 -0400 From: Nigel Cunningham Subject: [Suspend2][ 2/9] [Suspend2] Free extra memory allocated for the atomic copy. Date: Tue, 27 Jun 2006 08:34:19 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060626223418.3963.82600.stgit@nigel.suspend2.net> In-Reply-To: <20060626223412.3963.1484.stgit@nigel.suspend2.net> References: <20060626223412.3963.1484.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 If the page cache is not large enough to store the atomic copy, we allocate extra pages. This routine is used at cleanup to free that memory. Signed-off-by: Nigel Cunningham kernel/power/pagedir.c | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-) diff --git a/kernel/power/pagedir.c b/kernel/power/pagedir.c index 1e0995e..9c26990 100644 --- a/kernel/power/pagedir.c +++ b/kernel/power/pagedir.c @@ -31,3 +31,26 @@ struct extras { struct extras *next; } *extras_list; +/* suspend_free_extra_pagedir_memory + * + * Description: Free previously allocated extra pagedir memory. + */ +void suspend_free_extra_pagedir_memory(void) +{ + /* Free allocated pages */ + while (extras_list) { + struct extras *this = extras_list; + int i; + + extras_list = this->next; + + for (i = 0; i < (1 << this->order); i++) + ClearPageNosave(this->page + i); + + __free_pages(this->page, this->order); + kfree(this); + } + + extra_pagedir_pages_allocated = 0; +} + -- Nigel Cunningham nigel at suspend2 dot net