cpu: Add missing 'static' attribute to qemu_global_mutex

Contrary to its name, 'qemu_global_mutex' is only used locally
in cpus.c.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/cpus.c b/cpus.c
index 4b726ef4e7..1d5d4904cc 100644
--- a/cpus.c
+++ b/cpus.c
@@ -613,7 +613,7 @@ static void qemu_tcg_init_cpu_signals(void)
 }
 #endif /* _WIN32 */
 
-QemuMutex qemu_global_mutex;
+static QemuMutex qemu_global_mutex;
 static QemuCond qemu_io_proceeded_cond;
 static bool iothread_requesting_mutex;