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vhost: avoid pr_err on condition guest can trigger

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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>
This commit is contained in:
Michael S. Tsirkin 2010-06-24 17:10:25 +03:00
parent 1680e9063e
commit 95c0ec6a97
1 changed files with 4 additions and 4 deletions
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8
drivers/vhost/net.c
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@ -177,8 +177,8 @@ static void handle_tx(struct vhost_net *net)
break; break;
} }
if (err != len) if (err != len)
pr_err("Truncated TX packet: " pr_debug("Truncated TX packet: "
" len %d != %zd\n", err, len); " len %d != %zd\n", err, len);
vhost_add_used_and_signal(&net->dev, vq, head, 0); vhost_add_used_and_signal(&net->dev, vq, head, 0);
total_len += len; total_len += len;
if (unlikely(total_len >= VHOST_NET_WEIGHT)) { if (unlikely(total_len >= VHOST_NET_WEIGHT)) {
@ -275,8 +275,8 @@ static void handle_rx(struct vhost_net *net)
} }
/* TODO: Should check and handle checksum. */ /* TODO: Should check and handle checksum. */
if (err > len) { if (err > len) {
pr_err("Discarded truncated rx packet: " pr_debug("Discarded truncated rx packet: "
" len %d > %zd\n", err, len); " len %d > %zd\n", err, len);
vhost_discard_vq_desc(vq); vhost_discard_vq_desc(vq);
continue; continue;
} }