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SubjectRe: [patch 2/3] x86: Add smp_mb() before sending INVALIDATE_TLB_VECTOR
On Thu, Nov 06 2008, Ingo Molnar wrote:
>
> * Suresh Siddha <suresh.b.siddha@intel.com> wrote:
>
> > On x86, x2apic mode accesses for sending IPI's don't have
> > serializing semantics. If the IPI receiver refers(in lock-free
> > fashion) to some memory setup by the sender, the need for smp_mb()
> > before sending the IPI becomes critical in x2apic mode.
> >
> > Add the smp_mb() in native_flush_tlb_others() before sending the
> > IPI.
> >
> > Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
>
> applied to tip/x86/urgent, thanks Suresh!
>
> Jens, you'll send 1/3 and 3/3 to Linus, right?

Yes, it's in for-linus and I'll send the pull request today.

--
Jens Axboe



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