From: Shan Wei <[email protected]> this_cpu_add is an atomic operation. and be more faster than per_cpu_ptr operation.
Signed-off-by: Shan Wei <[email protected]> Reviewed-by: Christoph Lameter <[email protected]> Signed-off-by: Sven Eckelmann <[email protected]> Signed-off-by: Marek Lindner <[email protected]> Signed-off-by: Antonio Quartulli <[email protected]> --- net/batman-adv/main.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h index 2f85577..c4fe41f 100644 --- a/net/batman-adv/main.h +++ b/net/batman-adv/main.h @@ -276,9 +276,7 @@ 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) -- 1.8.0.2
