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virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0 

We simplified virtqueue_add_buf(), make it clear in the callers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2012-10-16 23:56:16 +10:30
parent 4614e51ccc
commit de929b0445
1 changed files with 2 additions and 2 deletions
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4
tools/virtio/virtio_test.c
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@ -164,7 +164,7 @@ static void run_test(struct vdev_info *dev, struct vq_info *vq,
r = virtqueue_add_buf(vq->vq, &sl, 1, 0,
dev->buf + started,
GFP_ATOMIC);
if (likely(r >= 0)) {
if (likely(r == 0)) {
++started;
virtqueue_kick(vq->vq);
}
@ -177,7 +177,7 @@ static void run_test(struct vdev_info *dev, struct vq_info *vq,
r = 0;
}
} while (r >= 0);
} while (r == 0);
if (completed == completed_before)
++spurious;
assert(completed <= bufs);