From: Jan Kiszka <jan.kis...@siemens.com> qemu_shutdown_requested may be interrupted by qemu_system_killed. If the latter sets shutdown_requested after qemu_shutdown_requested has read it but before it was cleared, the shutdown event is lost. Fix this by using atomic_xchg.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
vl.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/vl.c b/vl.c
index 2f81384..f6b3546 100644
--- a/vl.c
+++ b/vl.c
@@ -1609,9 +1609,7 @@ int qemu_reset_requested_get(void)
static int qemu_shutdown_requested(void)
{
- int r = shutdown_requested;
- shutdown_requested = 0;
- return r;
+ return atomic_xchg(&shutdown_requested, 0);
}
static void qemu_kill_report(void)
--
1.8.4.5
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