From: Yun Lu <luyun_611@163.com>
To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, horms@kernel.org, kerneljasonxing@gmail.com,
kuniyu@google.com
Cc: mhal@rbox.co, bjorn@kernel.org, jiayuan.chen@linux.dev,
netdev@vger.kernel.org
Subject: [PATCH net-next] net: skbuff: use net_zcopy_get() instead of refcount_inc()
Date: Mon, 6 Jul 2026 18:02:29 +0800 [thread overview]
Message-ID: <20260706100229.13812-1-luyun_611@163.com> (raw)
From: Yun Lu <luyun@kylinos.cn>
The net_zcopy_get() increments the uarg->refcnt, which is called both
in pskb_carve_inside_header() and pskb_carve_inside_nonlinear().
Also use net_zcopy_get() in pskb_expand_head for code consistency.
No functional change intended.
Signed-off-by: Yun Lu <luyun@kylinos.cn>
---
net/core/skbuff.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 18dabb4e9cfa..bcf3b2c65fb9 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2326,7 +2326,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
if (skb_orphan_frags(skb, gfp_mask))
goto nofrags;
if (skb_zcopy(skb))
- refcount_inc(&skb_uarg(skb)->refcnt);
+ net_zcopy_get(skb_zcopy(skb));
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
skb_frag_ref(skb, i);
--
2.43.0
next reply other threads:[~2026-07-06 10:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-06 10:02 Yun Lu [this message]
2026-07-06 13:55 ` [PATCH net-next] net: skbuff: use net_zcopy_get() instead of refcount_inc() Willem de Bruijn
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