netfilter: use likely() in xt_info_rdlock_bh()

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 1b2e43502ef77b63e50a428a3b61dcfa956da967..c9efe039dc57c4e2c2dce6ec11751a3d6d1c9819 100644 (file)
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -472,7 +472,7 @@ static inline void xt_info_rdlock_bh(void)
 
        local_bh_disable();
        lock = &__get_cpu_var(xt_info_locks);
-       if (!lock->readers++)
+       if (likely(!lock->readers++))
                spin_lock(&lock->lock);
 }
 
@@ -480,7 +480,7 @@ static inline void xt_info_rdunlock_bh(void)
 {
        struct xt_info_lock *lock = &__get_cpu_var(xt_info_locks);
 
-       if (!--lock->readers)
+       if (likely(!--lock->readers))
                spin_unlock(&lock->lock);
        local_bh_enable();
 }