Merge branch 'linus' into tracing/core

Merge reason: tracing/core was on a .30-rc1 base and was missing out on
              on a handful of tracing fixes present in .30-rc5-almost.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 6 insertions, 8 deletions

diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 2ea4199d9c57..5230eaafd83f 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -225,6 +225,7 @@ smp_send_reschedule (int cpu)
 {
         platform_send_ipi(cpu, IA64_IPI_RESCHEDULE, IA64_IPI_DM_INT, 0);
 }
+EXPORT_SYMBOL_GPL(smp_send_reschedule);
 
 /*
  * Called with preemption disabled.
@@ -300,15 +301,12 @@ smp_flush_tlb_mm (struct mm_struct *mm)
                 return;
         }
 
+        smp_call_function_mask(mm->cpu_vm_mask,
+                (void (*)(void *))local_finish_flush_tlb_mm, mm, 1);
+        local_irq_disable();
+        local_finish_flush_tlb_mm(mm);
+        local_irq_enable();
         preempt_enable();
-        /*
-         * We could optimize this further by using mm->cpu_vm_mask to track which CPUs
-         * have been running in the address space.  It's not clear that this is worth the
-         * trouble though: to avoid races, we have to raise the IPI on the target CPU
-         * anyhow, and once a CPU is interrupted, the cost of local_flush_tlb_all() is
-         * rather trivial.
-         */
-        on_each_cpu((void (*)(void *))local_finish_flush_tlb_mm, mm, 1);
 }
 
 void arch_send_call_function_single_ipi(int cpu)