x86: add smp_mb() before sending INVALIDATE_TLB_VECTOR

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / tlb_32.c

diff --git a/arch/x86/kernel/tlb_32.c b/arch/x86/kernel/tlb_32.c
index e00534b3353483dc67bc8282b839c5257a16ca72..f4049f3513b6b5e01e71523a5490fbedd5db9992 100644 (file)
--- a/arch/x86/kernel/tlb_32.c
+++ b/arch/x86/kernel/tlb_32.c
@@ -154,6 +154,12 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm,
        flush_mm = mm;
        flush_va = va;
        cpus_or(flush_cpumask, cpumask, flush_cpumask);
+
+       /*
+        * Make the above memory operations globally visible before
+        * sending the IPI.
+        */
+       smp_mb();
        /*
         * We have to send the IPI only to
         * CPUs affected.