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batman-adv: use per_cpu_add helper 

this_cpu_add is an atomic operation.
and be more faster than per_cpu_ptr operation.

Signed-off-by: Shan Wei <davidshan@tencent.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
This commit is contained in:
Shan Wei 2012-11-13 09:53:26 +08:00 committed by Antonio Quartulli
parent 00494be454
commit 569174433d
1 changed files with 1 additions and 3 deletions
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4
net/batman-adv/main.h
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@ -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, static inline void batadv_add_counter(struct batadv_priv *bat_priv, size_t idx,
size_t count) size_t count)
{ {
int cpu = get_cpu(); this_cpu_add(bat_priv->bat_counters[idx], count);
per_cpu_ptr(bat_priv->bat_counters, cpu)[idx] += count;
put_cpu();
} }
#define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1) #define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1)