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net: dev: use kfree_skb_reason() for sch_handle_ingress()

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Replace kfree_skb() used in sch_handle_ingress() with
kfree_skb_reason(). Following drop reasons are introduced:

SKB_DROP_REASON_TC_INGRESS

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 14:00:45 +08:00 committed by David S. Miller
parent 7e726ed81e
commit a568aff26a
3 changed files with 3 additions and 1 deletions
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1
include/linux/skbuff.h
View File

@ -406,6 +406,7 @@ enum skb_drop_reason {
* net.rst) or RPS flow limit
*/
SKB_DROP_REASON_XDP, /* dropped by XDP in input path */
SKB_DROP_REASON_TC_INGRESS, /* dropped in TC ingress HOOK */
SKB_DROP_REASON_MAX,
};

1
include/trace/events/skb.h
View File

@ -49,6 +49,7 @@
EM(SKB_DROP_REASON_QDISC_DROP, QDISC_DROP) \
EM(SKB_DROP_REASON_CPU_BACKLOG, CPU_BACKLOG) \
EM(SKB_DROP_REASON_XDP, XDP) \
EM(SKB_DROP_REASON_TC_INGRESS, TC_INGRESS) \
EMe(SKB_DROP_REASON_MAX, MAX)
#undef EM

2
net/core/dev.c
View File

@ -5041,7 +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: