From b725441f02c2b31c04a95d0e9ca5420fa029a767 Mon Sep 17 00:00:00 2001 From: Tao Chen Date: Thu, 10 Jul 2025 11:20:32 +0800 Subject: bpf: Add attach_type field to bpf_link Attach_type will be set when a link is created by user. It is better to record attach_type in bpf_link generically and have it available universally for all link types. So add the attach_type field in bpf_link and move the sleepable field to avoid unnecessary gap padding. Signed-off-by: Tao Chen Signed-off-by: Andrii Nakryiko Acked-by: Daniel Borkmann Acked-by: Jiri Olsa Link: https://lore.kernel.org/bpf/20250710032038.888700-2-chen.dylane@linux.dev --- kernel/bpf/bpf_iter.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'kernel/bpf/bpf_iter.c') diff --git a/kernel/bpf/bpf_iter.c b/kernel/bpf/bpf_iter.c index 303ab1f42d3a..0cbcae727079 100644 --- a/kernel/bpf/bpf_iter.c +++ b/kernel/bpf/bpf_iter.c @@ -552,7 +552,8 @@ int bpf_iter_link_attach(const union bpf_attr *attr, bpfptr_t uattr, if (!link) return -ENOMEM; - bpf_link_init(&link->link, BPF_LINK_TYPE_ITER, &bpf_iter_link_lops, prog); + bpf_link_init(&link->link, BPF_LINK_TYPE_ITER, &bpf_iter_link_lops, prog, + attr->link_create.attach_type); link->tinfo = tinfo; err = bpf_link_prime(&link->link, &link_primer); -- cgit v1.2.3