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Date: Mon, 21 Jun 2010 16:31:23 -0300
From: Marcelo Tosatti <mtosatti@redhat.com>
Message-ID: <20100621193123.GA14083@amt.cnet>
References: <4C1BA0B4.2010803@siemens.com>
 <4C1BCEB0.6050601@codemonkey.ws>
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Subject: [Qemu-devel] [PATCH] fix smp with tcg mode and --enable-io-thread
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To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Jan Kiszka <jan.kiszka@siemens.com>, Glauber Costa <glommer@redhat.com>, qemu-devel <qemu-devel@nongnu.org>


Clear exit_request when iothread grabs the global lock. 

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/cpu-exec.c b/cpu-exec.c
index 026980a..74cb973 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -236,10 +236,8 @@ int cpu_exec(CPUState *env1)
     asm("");
     env = env1;
 
-    if (exit_request) {
+    if (exit_request)
         env->exit_request = 1;
-        exit_request = 0;
-    }
 
 #if defined(TARGET_I386)
     if (!kvm_enabled()) {
diff --git a/cpus.c b/cpus.c
index fcd0f09..ef1ab22 100644
--- a/cpus.c
+++ b/cpus.c
@@ -598,6 +598,7 @@ void qemu_mutex_lock_iothread(void)
         }
         qemu_mutex_unlock(&qemu_fair_mutex);
     }
+   exit_request = 0;
 }
 
 void qemu_mutex_unlock_iothread(void)