Re: [RFC PATCH V2 4/5] vhost: introduce helpers to get the size of metadata area

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On 2019/3/6 下午6:56, Christophe de Dinechin wrote:
On 6 Mar 2019, at 08:18, Jason Wang<jasowang@xxxxxxxxxx>  wrote:

Signed-off-by: Jason Wang<jasowang@xxxxxxxxxx>
---
drivers/vhost/vhost.c | 46 ++++++++++++++++++++++++++++------------------
1 file changed, 28 insertions(+), 18 deletions(-)

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 2025543..1015464 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -413,6 +413,27 @@ static void vhost_dev_free_iovecs(struct vhost_dev *dev)
		vhost_vq_free_iovecs(dev->vqs[i]);
}

+static size_t vhost_get_avail_size(struct vhost_virtqueue *vq, int num)
Nit: Any reason not to make `num` unsigned or size_t?


Let me use unsigned int to match the definition of vq->num.

Thanks





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