diff options
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 96bcc003e018..ba69ddf85af6 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -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; @@ -3889,7 +3890,7 @@ sch_handle_egress(struct sk_buff *skb, int *ret, struct net_device *dev) case TC_ACT_SHOT: mini_qdisc_qstats_cpu_drop(miniq); *ret = NET_XMIT_DROP; - kfree_skb(skb); + kfree_skb_reason(skb, SKB_DROP_REASON_TC_EGRESS); return NULL; case TC_ACT_STOLEN: case TC_ACT_QUEUED: @@ -4569,10 +4570,12 @@ static bool skb_flow_limit(struct sk_buff *skb, unsigned int qlen) static int enqueue_to_backlog(struct sk_buff *skb, int cpu, unsigned int *qtail) { + enum skb_drop_reason reason; struct softnet_data *sd; unsigned long flags; unsigned int qlen; + reason = SKB_DROP_REASON_NOT_SPECIFIED; sd = &per_cpu(softnet_data, cpu); rps_lock_irqsave(sd, &flags); @@ -4595,13 +4598,14 @@ enqueue: napi_schedule_rps(sd); goto enqueue; } + reason = SKB_DROP_REASON_CPU_BACKLOG; drop: sd->dropped++; rps_unlock_irq_restore(sd, &flags); atomic_long_inc(&skb->dev->rx_dropped); - kfree_skb(skb); + kfree_skb_reason(skb, reason); return NET_RX_DROP; } @@ -4821,7 +4825,7 @@ int do_xdp_generic(struct bpf_prog *xdp_prog, struct sk_buff *skb) } return XDP_PASS; out_redir: - kfree_skb(skb); + kfree_skb_reason(skb, SKB_DROP_REASON_XDP); return XDP_DROP; } EXPORT_SYMBOL_GPL(do_xdp_generic); @@ -5037,7 +5041,7 @@ sch_handle_ingress(struct sk_buff *skb, struct packet_type **pt_prev, int *ret, break; case TC_ACT_SHOT: mini_qdisc_qstats_cpu_drop(miniq); - kfree_skb(skb); + kfree_skb_reason(skb, SKB_DROP_REASON_TC_INGRESS); return NULL; case TC_ACT_STOLEN: case TC_ACT_QUEUED: @@ -5354,11 +5358,13 @@ check_vlan_id: *ppt_prev = pt_prev; } else { drop: - if (!deliver_exact) + if (!deliver_exact) { atomic_long_inc(&skb->dev->rx_dropped); - else + kfree_skb_reason(skb, SKB_DROP_REASON_PTYPE_ABSENT); + } else { atomic_long_inc(&skb->dev->rx_nohandler); - kfree_skb(skb); + kfree_skb(skb); + } /* Jamal, now you will not able to escape explaining * me how you were going to use this. :-) */ |