On Tue, 2012-10-23 at 21:23 +0200, Oleg Nesterov wrote:
>
> static void mb_ipi(void *arg)
> {
> smp_mb(); /* unneeded ? */
> }
>
> static void force_mb_on_each_cpu(void)
> {
> smp_mb();
> smp_call_function(mb_ipi, NULL, 1);
> }
You know we're spending an awful lot of time and effort to get rid of
such things, right? RT and HPC people absolutely hate these random IPI
things.
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