vhost: avoid pr_err on condition guest can trigger
Guest can trigger packet truncation by posting a very short buffer and disabling buffer merging. Convert pr_err to pr_debug to avoid log from filling up when this happens. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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1680e9063e
Коммит
95c0ec6a97
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@ -177,8 +177,8 @@ static void handle_tx(struct vhost_net *net)
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break;
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}
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if (err != len)
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pr_err("Truncated TX packet: "
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" len %d != %zd\n", err, len);
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pr_debug("Truncated TX packet: "
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" len %d != %zd\n", err, len);
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vhost_add_used_and_signal(&net->dev, vq, head, 0);
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total_len += len;
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if (unlikely(total_len >= VHOST_NET_WEIGHT)) {
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@ -275,8 +275,8 @@ static void handle_rx(struct vhost_net *net)
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}
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/* TODO: Should check and handle checksum. */
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if (err > len) {
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pr_err("Discarded truncated rx packet: "
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" len %d > %zd\n", err, len);
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pr_debug("Discarded truncated rx packet: "
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" len %d > %zd\n", err, len);
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vhost_discard_vq_desc(vq);
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continue;
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}
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