[PATCH 3/3] kvm tools: Make virtio-blk kvm__irq_line thread safe

[Asias He]

Signed-off-by: Asias He <asias.he...@gmail.com>
---
 tools/kvm/virtio-blk.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/tools/kvm/virtio-blk.c b/tools/kvm/virtio-blk.c
index 3feabd0..ade6335 100644
--- a/tools/kvm/virtio-blk.c
+++ b/tools/kvm/virtio-blk.c
@@ -159,7 +159,9 @@ static void virtio_blk_do_io(struct kvm *kvm, void *param)
        while (virt_queue__available(vq))
                virtio_blk_do_io_request(kvm, vq);
 
+       mutex_lock(&blk_device.mutex);
        kvm__irq_line(kvm, VIRTIO_BLK_IRQ, 1);
+       mutex_unlock(&blk_device.mutex);
 }
 
 static bool virtio_blk_pci_io_out(struct kvm *self, uint16_t port, void *data, 
int size, uint32_t count)
-- 
1.7.4.4

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