On Wed, Oct 02, 2013 at 04:56:56PM +0200, Peter Zijlstra wrote:
> + if (atomic_dec_and_test(&cpuhp_waitcount))
> + wake_up(&cpuhp_writer);
> +
> + goto again:
> }
> +
> +#define per_cpu_sum(var) \
> +({ \
> + typeof(var) __sum = 0; \
> + int cpu; \
> + for_each_possible_cpu(cpu) \
> + __sum += per_cpu(var, cpu); \
> + __sum; \
> +)}
>
I just noticed I forgot a refresh..
+++ b/kernel/cpu.c
@@ -120,7 +120,7 @@ void __get_online_cpus(void)
if (atomic_dec_and_test(&cpuhp_waitcount))
wake_up(&cpuhp_writer);
- goto again:
+ goto again;
}
EXPORT_SYMBOL_GPL(__get_online_cpus);
@@ -146,7 +146,7 @@ EXPORT_SYMBOL_GPL(__put_online_cpus);
for_each_possible_cpu(cpu) \
__sum += per_cpu(var, cpu); \
__sum; \
-)}
+})
/*
* See srcu_readers_active_idx_check() for a rather more detailed explanation.
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