[PATCH] softmmu/vl: Include "qemu/rcu.h" for rcu_disable_atfork()

[Philippe Mathieu-Daudé]

In commit 73c6e4013b we let vl.c use rcu_disable_atfork()
which is declared in "qemu/rcu.h", but forgot to include
this header. Fortunately has never been a problem since
vl.c includes "exec/memory.h" which includes "qemu/rcu.h".

Include the missing header now in case we split vl.c later.

Fixes: 73c6e4013b ("rcu: disable pthread_atfork callbacks ASAP")
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 softmmu/vl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/softmmu/vl.c b/softmmu/vl.c
index ecbc18ba75..f243745c51 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -83,6 +83,7 @@
 #include "qemu/config-file.h"
 #include "qemu-options.h"
 #include "qemu/main-loop.h"
+#include "qemu/rcu.h"
 #ifdef CONFIG_VIRTFS
 #include "fsdev/qemu-fsdev.h"
 #endif
-- 
2.21.3