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bpf: Add cookie in fdinfo for tracing

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Add cookie in fdinfo for tracing, the info as follows:

link_type:	tracing
link_id:	6
prog_tag:	9dfdf8ef453843bf
prog_id:	35
attach_type:	25
target_obj_id:	1
target_btf_id:	60355
cookie:	9007199254740992

Signed-off-by: Tao Chen <chen.dylane@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250606165818.3394397-4-chen.dylane@linux.dev
This commit is contained in:
Tao Chen 2025-06-07 00:58:17 +08:00 committed by Andrii Nakryiko
parent ad954cbe08
commit 380cb6dfa2
1 changed files with 4 additions and 2 deletions
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6
kernel/bpf/syscall.c
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@ -3403,10 +3403,12 @@ static void bpf_tracing_link_show_fdinfo(const struct bpf_link *link,
seq_printf(seq,
"attach_type:\t%d\n"
"target_obj_id:\t%u\n"
"target_btf_id:\t%u\n",
"target_btf_id:\t%u\n"
"cookie:\t%llu\n",
tr_link->attach_type,
target_obj_id,
target_btf_id);
target_btf_id,
tr_link->link.cookie);
}
static int bpf_tracing_link_fill_link_info(const struct bpf_link *link,