From: Tao Chen <chen.dylane@linux.dev>
To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org,
yonghong.song@linux.dev, john.fastabend@gmail.com,
kpsingh@kernel.org, sdf@fomichev.me, qmo@kernel.org,
jolsa@kernel.org
Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
Tao Chen <chen.dylane@linux.dev>
Subject: [PATCH bpf-next 5/5] bpf: Add cookie in fdinfo for raw_tp
Date: Sat, 7 Jun 2025 00:58:18 +0800 [thread overview]
Message-ID: <20250606165818.3394397-5-chen.dylane@linux.dev> (raw)
In-Reply-To: <20250606165818.3394397-1-chen.dylane@linux.dev>
Add cookie in fdinfo for raw_tp, the info as follows:
link_type: raw_tracepoint
link_id: 31
prog_tag: 9dfdf8ef453843bf
prog_id: 32
tp_name: sys_enter
cookie: 23925373020405760
Signed-off-by: Tao Chen <chen.dylane@linux.dev>
---
kernel/bpf/syscall.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index d6eba1339ad..51ba1a7aa43 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -3654,8 +3654,10 @@ static void bpf_raw_tp_link_show_fdinfo(const struct bpf_link *link,
container_of(link, struct bpf_raw_tp_link, link);
seq_printf(seq,
- "tp_name:\t%s\n",
- raw_tp_link->btp->tp->name);
+ "tp_name:\t%s\n"
+ "cookie:\t%llu\n",
+ raw_tp_link->btp->tp->name,
+ raw_tp_link->cookie);
}
static int bpf_copy_to_user(char __user *ubuf, const char *buf, u32 ulen,
--
2.43.0
next prev parent reply other threads:[~2025-06-06 16:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-06 16:58 [PATCH bpf-next 1/5] bpf: Add cookie to tracing bpf_link_info Tao Chen
2025-06-06 16:58 ` [PATCH bpf-next 2/5] selftests/bpf: Add cookies check for tracing fill_link_info test Tao Chen
2025-06-06 16:58 ` [PATCH bpf-next 3/5] bpftool: Display cookie for tracing link probe Tao Chen
2025-06-06 16:58 ` [PATCH bpf-next 4/5] bpf: Add cookie in fdinfo for tracing Tao Chen
2025-06-06 16:58 ` Tao Chen [this message]
2025-06-09 23:50 ` [PATCH bpf-next 1/5] bpf: Add cookie to tracing bpf_link_info patchwork-bot+netdevbpf
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