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Date: Fri, 13 Feb 2015 12:57:09 -0500
From: Neil Horman <nhorman@tuxdriver.com>
To: Cunming Liang <cunming.liang@intel.com>
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Subject: Re: [dpdk-dev] [PATCH v6 12/19] malloc: fix the issue of
 SOCKET_ID_ANY
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On Fri, Feb 13, 2015 at 09:38:14AM +0800, Cunming Liang wrote:
> Add check for rte_socket_id(), avoid get unexpected return like (-1).
> 
> Signed-off-by: Cunming Liang <cunming.liang@intel.com>
> ---
>  lib/librte_malloc/malloc_heap.h | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/librte_malloc/malloc_heap.h b/lib/librte_malloc/malloc_heap.h
> index b4aec45..a47136d 100644
> --- a/lib/librte_malloc/malloc_heap.h
> +++ b/lib/librte_malloc/malloc_heap.h
> @@ -44,7 +44,12 @@ extern "C" {
>  static inline unsigned
>  malloc_get_numa_socket(void)
>  {
> -	return rte_socket_id();
> +	unsigned socket_id = rte_socket_id();
> +
> +	if (socket_id == (unsigned)SOCKET_ID_ANY)
> +		return 0;
> +
> +	return socket_id;
Why is -1 unexpected?  Isn't it reasonable to assume that some memory is
equidistant from all cpu numa nodes?

Neil

>  }
>  
>  void *
> -- 
> 1.8.1.4
> 
>