Re: [PATCH] vhost-net: switch to smp barriers

[Avi Kivity]

On 02/01/2010 07:21 PM, Michael S. Tsirkin wrote:
> vhost-net only uses memory barriers to control SMP effects
> (communication with userspace potentially running on a different CPU),
> so it should use SMP barriers and not mandatory barriers for memory
> access ordering, as suggested by Documentation/memory-barriers.txt
>
>    

A UP guest running on an SMP host still needs those barriers.

--
error compiling committee.c: too many arguments to function

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