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authorAlex Bennée <alex.bennee@linaro.org>2018-09-27 18:17:24 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2018-10-02 19:09:14 +0200
commit1926ab273b374372e5108a9e360b9e9366d9acf7 (patch)
tree1d8c299817974341c2d416f649ff64e847c50d14
parent687ac05d71bbb3172e0546248e40483ef43a4813 (diff)
downloadfocaccia-qemu-1926ab273b374372e5108a9e360b9e9366d9acf7.tar.gz
focaccia-qemu-1926ab273b374372e5108a9e360b9e9366d9acf7.zip
cpus: fix TCG kick timer leak
This is an alternative fix to Marc-André's original patch.

Reported-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20180927171724.30128-1-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--cpus.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/cpus.c b/cpus.c
index 68f08f5b2d..361678e459 100644
--- a/cpus.c
+++ b/cpus.c
@@ -983,6 +983,8 @@ static void start_tcg_kick_timer(void)
     if (!tcg_kick_vcpu_timer && CPU_NEXT(first_cpu)) {
         tcg_kick_vcpu_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
                                            kick_tcg_thread, NULL);
+    }
+    if (tcg_kick_vcpu_timer && !timer_pending(tcg_kick_vcpu_timer)) {
         timer_mod(tcg_kick_vcpu_timer, qemu_tcg_next_kick());
     }
 }
@@ -990,9 +992,8 @@ static void start_tcg_kick_timer(void)
 static void stop_tcg_kick_timer(void)
 {
     assert(!mttcg_enabled);
-    if (tcg_kick_vcpu_timer) {
+    if (tcg_kick_vcpu_timer && timer_pending(tcg_kick_vcpu_timer)) {
         timer_del(tcg_kick_vcpu_timer);
-        tcg_kick_vcpu_timer = NULL;
     }
 }