@@ -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);
@@ -18,6 +18,7 @@
#include "sysemu/iothread.h"
#include "qmp-commands.h"
#include "qemu/error-report.h"
+#include "qemu/rcu.h"
typedef ObjectClass IOThreadClass;
@@ -31,6 +32,8 @@ static void *iothread_run(void *opaque)
IOThread *iothread = opaque;
bool blocking;
+ rcu_register_thread();
+
qemu_mutex_lock(&iothread->init_done_lock);
iothread->thread_id = qemu_get_thread_id();
qemu_cond_signal(&iothread->init_done_cond);
@@ -22,6 +22,7 @@
#include "block/block.h"
#include "qapi/qmp/qerror.h"
#include "qemu/sockets.h"
+#include "qemu/rcu.h"
#include "migration/block.h"
#include "qemu/thread.h"
#include "qmp-commands.h"
@@ -911,6 +912,8 @@ static void *migration_thread(void *opaque)
int64_t start_time = initial_time;
bool old_vm_running = false;
+ rcu_register_thread();
+
qemu_savevm_state_header(s->file);
qemu_savevm_state_begin(s->file, &s->params);
@@ -108,6 +108,8 @@ static void *rcu_q_reader(void *arg)
long long n_reads_local = 0;
struct list_element *el;
+ rcu_register_thread();
+
*(struct rcu_reader_data **)arg = &rcu_reader;
atomic_inc(&nthreadsrunning);
while (goflag == GOFLAG_INIT) {
Otherwise, grace periods are detected too early! Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- cpus.c | 6 ++++++ iothread.c | 3 +++ migration/migration.c | 3 +++ tests/test-rcu-list.c | 2 ++ 4 files changed, 14 insertions(+)