rcu: actually register threads that have RCU read-side critical sections

Otherwise, grace periods are detected too early!

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/cpus.c b/cpus.c
index b00a423..a822ce3 100644
--- a/cpus.c
+++ b/cpus.c
@@ -954,6 +954,8 @@ static void *qemu_kvm_cpu_thread_fn(void *arg)
     CPUState *cpu = arg;
     int r;
 
+    rcu_register_thread();
+
     qemu_mutex_lock_iothread();
     qemu_thread_get_self(cpu->thread);
     cpu->thread_id = qemu_get_thread_id();
@@ -995,6 +997,8 @@ static void *qemu_dummy_cpu_thread_fn(void *arg)
     sigset_t waitset;
     int r;
 
+    rcu_register_thread();
+
     qemu_mutex_lock_iothread();
     qemu_thread_get_self(cpu->thread);
     cpu->thread_id = qemu_get_thread_id();
@@ -1034,6 +1038,8 @@ static void *qemu_tcg_cpu_thread_fn(void *arg)
 {
     CPUState *cpu = arg;
 
+    rcu_register_thread();
+
     qemu_mutex_lock_iothread();
     qemu_tcg_init_cpu_signals();
     qemu_thread_get_self(cpu->thread);