From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sven Eckelmann Subject: [PATCHv4 10/11] drop_monitor: Use *_dec_not_zero instead of *_add_unless Date: Wed, 27 Jul 2011 11:47:49 +0200 Message-ID: <1311760070-21532-10-git-send-email-sven@narfation.org> References: <1311760070-21532-1-git-send-email-sven@narfation.org> Cc: linux-kernel@vger.kernel.org, Sven Eckelmann , Neil Horman , netdev@vger.kernel.org To: linux-arch@vger.kernel.org Return-path: Received: from narfation.org ([79.140.41.39]:39451 "EHLO v3-1039.vlinux.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752252Ab1G0Jr6 (ORCPT ); Wed, 27 Jul 2011 05:47:58 -0400 In-Reply-To: <1311760070-21532-1-git-send-email-sven@narfation.org> Sender: netdev-owner@vger.kernel.org List-ID: atomic_dec_not_zero is defined for each architecture through to provide the functionality of atomic_add_unless(x, -1, 0). Signed-off-by: Sven Eckelmann Cc: Neil Horman Cc: netdev@vger.kernel.org --- net/core/drop_monitor.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c index 7f36b38..ef4a05d 100644 --- a/net/core/drop_monitor.c +++ b/net/core/drop_monitor.c @@ -137,7 +137,7 @@ static void trace_drop_common(struct sk_buff *skb, void *location) struct per_cpu_dm_data *data = &__get_cpu_var(dm_cpu_data); - if (!atomic_add_unless(&data->dm_hit_count, -1, 0)) { + if (!atomic_dec_not_zero(&data->dm_hit_count)) { /* * we're already at zero, discard this hit */ -- 1.7.5.4