[RFC v3 4/4] cpus: use coroutine TLS macros for iothread_locked

[Stefan Hajnoczi <stefanha@redhat.com>]

qemu_mutex_iothread_locked() may be used from coroutines. Standard
__thread variables cannot be used by coroutines. Use the coroutine TLS
macros instead.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 softmmu/cpus.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/softmmu/cpus.c b/softmmu/cpus.c
index 071085f840..b02d3211e1 100644
--- a/softmmu/cpus.c
+++ b/softmmu/cpus.c
@@ -474,11 +474,11 @@ bool qemu_in_vcpu_thread(void)
     return current_cpu && qemu_cpu_is_self(current_cpu);
 }
 
-static __thread bool iothread_locked = false;
+QEMU_DEFINE_STATIC_CO_TLS(bool, iothread_locked)
 
 bool qemu_mutex_iothread_locked(void)
 {
-    return iothread_locked;
+    return get_iothread_locked();
 }
 
 /*
@@ -491,13 +491,13 @@ void qemu_mutex_lock_iothread_impl(const char *file, int line)
 
     g_assert(!qemu_mutex_iothread_locked());
     bql_lock(&qemu_global_mutex, file, line);
-    iothread_locked = true;
+    set_iothread_locked(true);
 }
 
 void qemu_mutex_unlock_iothread(void)
 {
     g_assert(qemu_mutex_iothread_locked());
-    iothread_locked = false;
+    set_iothread_locked(false);
     qemu_mutex_unlock(&qemu_global_mutex);
 }
 
-- 
2.33.1