From 91682118aa330aff7e8ef0cc685c32d101f49940 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Fri, 16 Sep 2016 09:24:20 -0700
Subject: [PATCH] tcg: Emit barriers with parallel_cpus
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Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 tcg/tcg-op.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index cdd61d678b..bb2bfeef3c 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -150,17 +150,7 @@ void tcg_gen_op6(TCGContext *ctx, TCGOpcode opc, TCGArg a1, TCGArg a2,
 
 void tcg_gen_mb(TCGBar mb_type)
 {
-    bool emit_barriers = true;
-
-#ifndef CONFIG_USER_ONLY
-    /* TODO: When MTTCG is available for system mode, we will check
-     * the following condition and enable emit_barriers
-     * (qemu_tcg_mttcg_enabled() && smp_cpus > 1)
-     */
-    emit_barriers = false;
-#endif
-
-    if (emit_barriers) {
+    if (parallel_cpus) {
         tcg_gen_op1(&tcg_ctx, INDEX_op_mb, mb_type);
     }
 }
-- 
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