From: Jon Kohler <jon@nutanix.com>
To: ast@kernel.org, daniel@iogearbox.net, davem@davemloft.net,
kuba@kernel.org, hawk@kernel.org, john.fastabend@gmail.com,
netdev@vger.kernel.org, bpf@vger.kernel.org, jon@nutanix.com,
aleksander.lobakin@intel.com,
Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
Jason Wang <jasowang@redhat.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH net-next 3/4] tun: use napi_build_skb in __tun_build_skb
Date: Tue, 6 May 2025 07:55:28 -0700 [thread overview]
Message-ID: <20250506145530.2877229-4-jon@nutanix.com> (raw)
In-Reply-To: <20250506145530.2877229-1-jon@nutanix.com>
Use napi_build_skb for small payload SKBs that end up using the
tun_build_skb path.
Signed-off-by: Jon Kohler <jon@nutanix.com>
---
drivers/net/tun.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index f7f7490e78dc..7b13d4bf5374 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1538,7 +1538,11 @@ static struct sk_buff *__tun_build_skb(struct tun_file *tfile,
int buflen, int len, int pad,
int metasize)
{
- struct sk_buff *skb = build_skb(buf, buflen);
+ struct sk_buff *skb;
+
+ local_bh_disable();
+ skb = napi_build_skb(buf, buflen);
+ local_bh_enable();
if (!skb)
return ERR_PTR(-ENOMEM);
--
2.43.0
next prev parent reply other threads:[~2025-05-06 14:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20250506145530.2877229-1-jon@nutanix.com>
2025-05-06 14:55 ` [PATCH net-next 1/4] tun: rcu_deference xdp_prog only once per batch Jon Kohler
2025-05-07 20:43 ` Willem de Bruijn
2025-05-08 3:13 ` Jon Kohler
2025-05-08 13:31 ` Willem de Bruijn
2025-05-08 13:40 ` Jon Kohler
2025-05-06 14:55 ` [PATCH net-next 2/4] tun: optimize skb allocation in tun_xdp_one Jon Kohler
2025-05-07 20:50 ` Willem de Bruijn
2025-05-08 3:02 ` Jon Kohler
2025-05-06 14:55 ` Jon Kohler [this message]
2025-05-07 20:50 ` [PATCH net-next 3/4] tun: use napi_build_skb in __tun_build_skb Willem de Bruijn
2025-05-08 3:08 ` Jon Kohler
2025-05-06 14:55 ` [PATCH net-next 4/4] tun: use napi_consume_skb in tun_do_read Jon Kohler
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