commit ab28bd23125fb4a0411c3a3f01c4edacbc261486
author Paolo Bonzini <pbonzini@redhat.com> Thu Jul 09 08:55:38 2015 +0200
committer Paolo Bonzini <pbonzini@redhat.com> Fri Jul 24 13:57:45 2015 +0200
tree 50cf40b9f83a43d2a7b6dee4a801e6c31fc409ee
parent c170aad8b057223b1139d72e5ce7acceafab4fa9

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>

cpus.c

diff --git a/cpus.c b/cpus.c
index b00a423..a822ce3 100644
--- a/cpus.c
+++ b/cpus.c
@@ -954,6 +954,8 @@
     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 @@
     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 @@
 {
     CPUState *cpu = arg;
 
+    rcu_register_thread();
+
     qemu_mutex_lock_iothread();
     qemu_tcg_init_cpu_signals();
     qemu_thread_get_self(cpu->thread);