From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932251AbWF0FDX (ORCPT ); Tue, 27 Jun 2006 01:03:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030684AbWF0Ejj (ORCPT ); Tue, 27 Jun 2006 00:39:39 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:26075 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S1030658AbWF0Ejb (ORCPT ); Tue, 27 Jun 2006 00:39:31 -0400 From: Nigel Cunningham Subject: [Suspend2][ 02/13] [Suspend2] Fill skb pool. Date: Tue, 27 Jun 2006 14:39:30 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060627043929.14630.80423.stgit@nigel.suspend2.net> In-Reply-To: <20060627043923.14630.565.stgit@nigel.suspend2.net> References: <20060627043923.14630.565.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 Fill the skb pool used to communicate with userspace helpers. Signed-off-by: Nigel Cunningham kernel/power/netlink.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/kernel/power/netlink.c b/kernel/power/netlink.c index 8d27801..d169096 100644 --- a/kernel/power/netlink.c +++ b/kernel/power/netlink.c @@ -15,3 +15,22 @@ #ifdef CONFIG_NET struct user_helper_data *uhd_list = NULL; +/* + * Refill our pool of SKBs for use in emergencies (eg, when eating memory and none + * can be allocated). + */ +static void suspend_fill_skb_pool(struct user_helper_data *uhd) +{ + while (uhd->pool_level < uhd->pool_limit) { + struct sk_buff *new_skb = + alloc_skb(NLMSG_SPACE(uhd->skb_size), GFP_ATOMIC); + + if (!new_skb) + break; + + new_skb->next = uhd->emerg_skbs; + uhd->emerg_skbs = new_skb; + uhd->pool_level++; + } +} + -- Nigel Cunningham nigel at suspend2 dot net