[PATCH net-next 18/19] net: dev: use kfree_skb_reason() for sch_handle_ingress()
From: <hidden>
Date: 2022-02-15 11:33:45
Also in:
bpf, lkml
Subsystem:
networking [general], the rest, tracing · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
From: Menglong Dong <redacted> Replace kfree_skb() used in sch_handle_ingress() with kfree_skb_reason(). Following drop reasons are introduced: SKB_DROP_REASON_QDISC_INGRESS Signed-off-by: Menglong Dong <redacted> --- include/linux/skbuff.h | 4 ++++ include/trace/events/skb.h | 1 + net/core/dev.c | 2 +- 3 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 79b24d5f491d..e36e27943104 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h@@ -411,6 +411,10 @@ enum skb_drop_reason { * net.rst) or RPS flow limit */ SKB_DROP_REASON_XDP, /* dropped by XDP in input path */ + SKB_DROP_REASON_QDISC_INGRESS, /* qdisc of type ingress check + * failed (maybe an eBPF program + * is tricking?) + */ SKB_DROP_REASON_MAX, };
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index 7bc46414a81b..96a550570dfe 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h@@ -47,6 +47,7 @@ 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_QDISC_INGRESS, QDISC_INGRESS) \ EMe(SKB_DROP_REASON_MAX, MAX) #undef EM
diff --git a/net/core/dev.c b/net/core/dev.c
index a2548b7f2708..c67e3491c004 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c@@ -5006,7 +5006,7 @@ 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_QDISC_INGRESS); return NULL; case TC_ACT_STOLEN: case TC_ACT_QUEUED:
--
2.34.1