Re: [PATCH v3 4/5] slub: Only IPI CPUs that have per cpu obj toflush

[Christoph Lameter]

On Sun, 13 Nov 2011, Gilad Ben-Yossef wrote:

> @@ -2006,7 +2006,20 @@ static void flush_cpu_slab(void *d)
> +	if (likely(zalloc_cpumask_var(&cpus, GFP_ATOMIC))) {
> +		for_each_online_cpu(cpu) {
> +			c = per_cpu_ptr(s->cpu_slab, cpu);
> +			if (c && c->page)

c will never be null. No need to check.

Otherwise

Acked-by: Christoph Lameter <cl@xxxxxxxxx>

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