From aeb709c767aeca996e6011133e4f7bdb2a4af652 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 30 Sep 2026 09:59:20 +0000 Subject: selftests/bpf: Add a test for objects stuck in free_by_rcu_ttrace Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first free_bulk() starts RCU tasks trace GP and the rest of the elements are freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and waiting_for_gp_ttrace lists are empty. Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- include/net/netkit.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 include/net/netkit.h (limited to 'include/net/netkit.h') diff --git a/include/net/netkit.h b/include/net/netkit.h new file mode 100644 index 000000000..9ec016373 --- /dev/null +++ b/include/net/netkit.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2023 Isovalent */ +#ifndef __NET_NETKIT_H +#define __NET_NETKIT_H + +#include + +#ifdef CONFIG_NETKIT +int netkit_prog_attach(const union bpf_attr *attr, struct bpf_prog *prog); +int netkit_link_attach(const union bpf_attr *attr, struct bpf_prog *prog); +int netkit_prog_detach(const union bpf_attr *attr, struct bpf_prog *prog); +int netkit_prog_query(const union bpf_attr *attr, union bpf_attr __user *uattr); +INDIRECT_CALLABLE_DECLARE(struct net_device *netkit_peer_dev(struct net_device *dev)); +#else +static inline int netkit_prog_attach(const union bpf_attr *attr, + struct bpf_prog *prog) +{ + return -EINVAL; +} + +static inline int netkit_link_attach(const union bpf_attr *attr, + struct bpf_prog *prog) +{ + return -EINVAL; +} + +static inline int netkit_prog_detach(const union bpf_attr *attr, + struct bpf_prog *prog) +{ + return -EINVAL; +} + +static inline int netkit_prog_query(const union bpf_attr *attr, + union bpf_attr __user *uattr) +{ + return -EINVAL; +} + +static inline struct net_device *netkit_peer_dev(struct net_device *dev) +{ + return NULL; +} +#endif /* CONFIG_NETKIT */ +#endif /* __NET_NETKIT_H */ -- cgit v1.3.1