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net: dev: add skb drop reasons to __dev_xmit_skb()

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Add reasons for skb drops to __dev_xmit_skb() by replacing
kfree_skb_list() with kfree_skb_list_reason(). The drop reason of
SKB_DROP_REASON_QDISC_DROP is introduced for qdisc enqueue fails.

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Menglong Dong
2022-03-04 14:00:42 +08:00
committed by David S. Miller
parent 215b0f1963
commit 7faef0547f
3 changed files with 8 additions and 2 deletions
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5
net/core/dev.c
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@@ -3759,7 +3759,8 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
no_lock_out:
if (unlikely(to_free))
kfree_skb_list(to_free);
kfree_skb_list_reason(to_free,
SKB_DROP_REASON_QDISC_DROP);
return rc;
}
@@ -3814,7 +3815,7 @@ no_lock_out:
}
spin_unlock(root_lock);
if (unlikely(to_free))
kfree_skb_list(to_free);
kfree_skb_list_reason(to_free, SKB_DROP_REASON_QDISC_DROP);
if (unlikely(contended))
spin_unlock(&q->busylock);
return rc;