locking/x86: Use mb() around clflush()

[karo-tx-linux.git] / arch / x86 / kernel / process.c

diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 9f7c21c22477e59462d72e930d79a4c2a238a051..9decee2bfdbeedb795d3e1f423e606cdec5e49e0 100644 (file)
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -418,9 +418,9 @@ static void mwait_idle(void)
        if (!current_set_polling_and_test()) {
                trace_cpu_idle_rcuidle(1, smp_processor_id());
                if (this_cpu_has(X86_BUG_CLFLUSH_MONITOR)) {
-                       smp_mb(); /* quirk */
+                       mb(); /* quirk */
                        clflush((void *)&current_thread_info()->flags);
-                       smp_mb(); /* quirk */
+                       mb(); /* quirk */
                }
 
                __monitor((void *)&current_thread_info()->flags, 0, 0);