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    SubjectRe: [PATCH] vhost-net: switch to smp barriers
    On Sun, Feb 07, 2010 at 11:42:29AM +0200, Avi Kivity wrote:
    > 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.

    Correct. And since vhost net is running host-side, smp_XX
    barriers will do exactly the right thing, right?

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


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