The commit is pushed to "branch-rh9-5.14.0-162.6.1.vz9.18.x-ovz" and will
appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh9-5.14.0-162.6.1.vz9.18.2
------>
commit d021a19be99eb7a74d882daf28971ed31b82acb6
Author: Menglong Dong <[email protected]>
Date: Tue Jan 3 17:39:05 2023 +0200
net: tcp: introduce tcp_drop_reason()
For TCP protocol, tcp_drop() is used to free the skb when it needs
to be dropped. To make use of kfree_skb_reason() and pass the drop
reason to it, introduce the function tcp_drop_reason(). Meanwhile,
make tcp_drop() an inline call to tcp_drop_reason().
Reviewed-by: Mengen Sun <[email protected]>
Reviewed-by: Hao Peng <[email protected]>
Signed-off-by: Menglong Dong <[email protected]>
Reviewed-by: Eric Dumazet <[email protected]>
Reviewed-by: David Ahern <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Acked-by: Nikolay Borisov <[email protected]>
Signed-off-by: Nikolay Borisov <[email protected]>
======
Patchset description:
ms/net: Annotate skb free sites with reason
This series backports most of the patches that add a reason to skb free
sites.
https://jira.sw.ru/browse/PSBM-143302
Feature: net: improve verbosity of dropped packets reporting
---
net/ipv4/tcp_input.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 2972062753a3..09effcf4db7c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4646,10 +4646,16 @@ static bool tcp_ooo_try_coalesce(struct sock *sk,
return res;
}
-static void tcp_drop(struct sock *sk, struct sk_buff *skb)
+static void tcp_drop_reason(struct sock *sk, struct sk_buff *skb,
+ enum skb_drop_reason reason)
{
sk_drops_add(sk, skb);
- __kfree_skb(skb);
+ kfree_skb_reason(skb, reason);
+}
+
+static void tcp_drop(struct sock *sk, struct sk_buff *skb)
+{
+ tcp_drop_reason(sk, skb, SKB_DROP_REASON_NOT_SPECIFIED);
}
/* This one checks to see if we can put data from the
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