Re: [PATCH 3/5] cpuset memory spread slab cache implementation

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Paul Jackson <[email protected]> wrote:
>
> +	if (unlikely(cpuset_mem_spread_check() &&
>  +					(cachep->flags & SLAB_MEM_SPREAD) &&
>  +					!in_interrupt())) {
>  +		int nid = cpuset_mem_spread_node();
>  +
>  +		if (nid != numa_node_id())
>  +			return __cache_alloc_node(cachep, flags, nid);
>  +	}

Need a comment here explaining the mysterious !in_interrupt() check.
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