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 f0b48469eed0fac570e84d8582cd4fe7d2776a02
Author: Menglong Dong <imaged...@tencent.com>
Date: Tue Jan 3 17:39:18 2023 +0200
net: skb: introduce the function kfree_skb_list_reason()
To report reasons of skb drops, introduce the function
kfree_skb_list_reason() and make kfree_skb_list() an inline call to
it. This function will be used in the next commit in
__dev_xmit_skb().
Signed-off-by: Menglong Dong <imaged...@tencent.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Acked-by: Nikolay Borisov <nbori...@suse.com>
Signed-off-by: Nikolay Borisov <nikolay.bori...@virtuozzo.com>
======
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
---
include/linux/skbuff.h | 8 +++++++-
net/core/skbuff.c | 7 ++++---
2 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index fbe1cadf1771..064201f7ac40 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1180,10 +1180,16 @@ static inline void kfree_skb(struct sk_buff *skb)
}
void skb_release_head_state(struct sk_buff *skb);
-void kfree_skb_list(struct sk_buff *segs);
+void kfree_skb_list_reason(struct sk_buff *segs,
+ enum skb_drop_reason reason);
void skb_dump(const char *level, const struct sk_buff *skb, bool full_pkt);
void skb_tx_error(struct sk_buff *skb);
+static inline void kfree_skb_list(struct sk_buff *segs)
+{
+ kfree_skb_list_reason(segs, SKB_DROP_REASON_NOT_SPECIFIED);
+}
+
#ifdef CONFIG_TRACEPOINTS
void consume_skb(struct sk_buff *skb);
#else
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 3d4887a8a68a..9d45ad819ea7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -779,16 +779,17 @@ void kfree_skb_reason(struct sk_buff *skb, enum
skb_drop_reason reason)
}
EXPORT_SYMBOL(kfree_skb_reason);
-void kfree_skb_list(struct sk_buff *segs)
+void kfree_skb_list_reason(struct sk_buff *segs,
+ enum skb_drop_reason reason)
{
while (segs) {
struct sk_buff *next = segs->next;
- kfree_skb(segs);
+ kfree_skb_reason(segs, reason);
segs = next;
}
}
-EXPORT_SYMBOL(kfree_skb_list);
+EXPORT_SYMBOL(kfree_skb_list_reason);
/* Dump skb information and contents.
*
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