virtio: remove bogus barriers from DEBUG version of virtio_ring.c

[safe/jmp/linux-2.6] / drivers / virtio / virtio_ring.c

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index fbd2ecd..1ee97d4 100644 (file)
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -36,10 +36,9 @@
                        panic("%s:in_use = %i\n",               \
                              (_vq)->vq.name, (_vq)->in_use);   \
                (_vq)->in_use = __LINE__;                       \
-               mb();                                           \
        } while (0)
 #define END_USE(_vq) \
-       do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0)
+       do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; } while(0)
 #else
 #define BAD_RING(_vq, fmt, args...)                            \
        do {                                                    \