linux-kernel - [PATCH bpf-next 3/4] bpf: use bpf_prog_run_pin_on_cpu

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Message-ID: <20251014112640.261770-4-dongml2@chinatelecom.cn>
Date: Tue, 14 Oct 2025 19:26:39 +0800
From: Menglong Dong <menglong8.dong@...il.com>
To: ast@...nel.org,
	paulmck@...nel.org
Cc: daniel@...earbox.net,
	andrii@...nel.org,
	martin.lau@...ux.dev,
	eddyz87@...il.com,
	song@...nel.org,
	yonghong.song@...ux.dev,
	john.fastabend@...il.com,
	kpsingh@...nel.org,
	sdf@...ichev.me,
	haoluo@...gle.com,
	jolsa@...nel.org,
	jakub@...udflare.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	horms@...nel.org,
	jiang.biao@...ux.dev,
	bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH bpf-next 3/4] bpf: use bpf_prog_run_pin_on_cpu_rcu() in skmsg.c

Replace bpf_prog_run_pin_on_cpu() with bpf_prog_run_pin_on_cpu_rcu() in
following functions to obtain better performance:

  sk_psock_msg_verdict
  sk_psock_tls_strp_read
  sk_psock_strp_read
  sk_psock_strp_parse
  sk_psock_verdict_recv

Signed-off-by: Menglong Dong <dongml2@...natelecom.cn>
---
 net/core/skmsg.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 2ac7731e1e0a..1d3f47b07659 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -908,7 +908,7 @@ int sk_psock_msg_verdict(struct sock *sk, struct sk_psock *psock,
 
 	sk_msg_compute_data_pointers(msg);
 	msg->sk = sk;
-	ret = bpf_prog_run_pin_on_cpu(prog, msg);
+	ret = bpf_prog_run_pin_on_cpu_rcu(prog, msg);
 	ret = sk_psock_map_verd(ret, msg->sk_redir);
 	psock->apply_bytes = msg->apply_bytes;
 	if (ret == __SK_REDIRECT) {
@@ -993,7 +993,7 @@ int sk_psock_tls_strp_read(struct sk_psock *psock, struct sk_buff *skb)
 		skb->sk = psock->sk;
 		skb_dst_drop(skb);
 		skb_bpf_redirect_clear(skb);
-		ret = bpf_prog_run_pin_on_cpu(prog, skb);
+		ret = bpf_prog_run_pin_on_cpu_rcu(prog, skb);
 		ret = sk_psock_map_verd(ret, skb_bpf_redirect_fetch(skb));
 		skb->sk = NULL;
 	}
@@ -1101,7 +1101,7 @@ static void sk_psock_strp_read(struct strparser *strp, struct sk_buff *skb)
 		skb->sk = sk;
 		skb_dst_drop(skb);
 		skb_bpf_redirect_clear(skb);
-		ret = bpf_prog_run_pin_on_cpu(prog, skb);
+		ret = bpf_prog_run_pin_on_cpu_rcu(prog, skb);
 		skb_bpf_set_strparser(skb);
 		ret = sk_psock_map_verd(ret, skb_bpf_redirect_fetch(skb));
 		skb->sk = NULL;
@@ -1126,7 +1126,7 @@ static int sk_psock_strp_parse(struct strparser *strp, struct sk_buff *skb)
 	prog = READ_ONCE(psock->progs.stream_parser);
 	if (likely(prog)) {
 		skb->sk = psock->sk;
-		ret = bpf_prog_run_pin_on_cpu(prog, skb);
+		ret = bpf_prog_run_pin_on_cpu_rcu(prog, skb);
 		skb->sk = NULL;
 	}
 	rcu_read_unlock();
@@ -1230,7 +1230,7 @@ static int sk_psock_verdict_recv(struct sock *sk, struct sk_buff *skb)
 	if (likely(prog)) {
 		skb_dst_drop(skb);
 		skb_bpf_redirect_clear(skb);
-		ret = bpf_prog_run_pin_on_cpu(prog, skb);
+		ret = bpf_prog_run_pin_on_cpu_rcu(prog, skb);
 		ret = sk_psock_map_verd(ret, skb_bpf_redirect_fetch(skb));
 	}
 	ret = sk_psock_verdict_apply(psock, skb, ret);
-- 
2.51.0