From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shan Wei Subject: [PATCH v2 9/9] net: batman-adv: use per_cpu_add helper Date: Sat, 03 Nov 2012 00:02:06 +0800 Message-ID: <5093EE7E.6040400@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit To: lindner_marek@yahoo.de, siwu@hrz.tu-chemnitz.de, ordex@autistici.org, b.a.t.m.a.n@lists.open-mesh.org, David Miller , NetDev , Kernel-Maillist , Shan Wei , Christoph Lameter Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Shan Wei As Christoph Lameter said: > In addition, following usage of per_cpu_ptr can be replaced by this_cpu_read. > > cpu=get_cpu() > .... > *per_cpu_ptr(p,cpu) > .... > .... > put_cpu() Right. Signed-off-by: Shan Wei --- net/batman-adv/main.h | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h index 897ba6a..3aef5b2 100644 --- a/net/batman-adv/main.h +++ b/net/batman-adv/main.h @@ -263,9 +263,7 @@ static inline bool batadv_has_timed_out(unsigned long timestamp, static inline void batadv_add_counter(struct batadv_priv *bat_priv, size_t idx, size_t count) { - int cpu = get_cpu(); - per_cpu_ptr(bat_priv->bat_counters, cpu)[idx] += count; - put_cpu(); + this_cpu_add(bat_priv->bat_counters[idx], count); } #define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1) -- 1.7.1