Messages in this thread | | | Date | Thu, 6 Nov 2008 09:42:11 +0100 | From | Ingo Molnar <> | Subject | Re: [patch 2/3] x86: Add smp_mb() before sending INVALIDATE_TLB_VECTOR |
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* 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?
Ingo
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