Squash to "bpf: Add mptcp_subflow bpf_iter"

Address Martin's comments in v1: - bpf_iter_mptcp_subflow_new returns -EINVAL when msk socket lock isn't held. Signed-off-by: Geliang Tang <[email protected]> Message-Id: <8e8c6d39d8de8ab2bb4cdd8965c1981a3920bc9e.1732172851.git.tanggeliang@kylinos.cn>
multipath-tcp · Nov 21, 2024 · a297bc6 · a297bc6
1 parent 2d8342a
commit a297bc6
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/net/mptcp/bpf.c b/net/mptcp/bpf.c
@@ -252,7 +252,8 @@ bpf_iter_mptcp_subflow_new(struct bpf_iter_mptcp_subflow *it,
 	if (!msk)
 		return -EINVAL;
 
-	msk_owned_by_me(msk);
+	if (!lockdep_sock_is_held((const struct sock *)msk))
+		return -EINVAL;
 
 	kit->pos = &msk->conn_list;
 	return 0;