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/raw.h | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 include/net/raw.h (limited to 'include/net/raw.h') diff --git a/include/net/raw.h b/include/net/raw.h new file mode 100644 index 000000000..66c0ffead --- /dev/null +++ b/include/net/raw.h @@ -0,0 +1,100 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * INET An implementation of the TCP/IP protocol suite for the LINUX + * operating system. INET is implemented using the BSD Socket + * interface as the means of communication with the user level. + * + * Definitions for the RAW-IP module. + * + * Version: @(#)raw.h 1.0.2 05/07/93 + * + * Author: Fred N. van Kempen, + */ +#ifndef _RAW_H +#define _RAW_H + +#include +#include +#include +#include +#include + +extern struct proto raw_prot; + +extern struct raw_hashinfo raw_v4_hashinfo; +bool raw_v4_match(struct net *net, const struct sock *sk, unsigned short num, + __be32 raddr, __be32 laddr, int dif, int sdif); + +int raw_abort(struct sock *sk, int err); +void raw_icmp_error(struct sk_buff *, int, u32); +int raw_local_deliver(struct sk_buff *, int); + +int raw_rcv(struct sock *, struct sk_buff *); + +#define RAW_HTABLE_LOG 8 +#define RAW_HTABLE_SIZE (1U << RAW_HTABLE_LOG) + +struct raw_hashinfo { + spinlock_t lock; + + struct hlist_head ht[RAW_HTABLE_SIZE] ____cacheline_aligned; +}; + +static inline u32 raw_hashfunc(const struct net *net, u32 proto) +{ + return hash_32(net_hash_mix(net) ^ proto, RAW_HTABLE_LOG); +} + +static inline void raw_hashinfo_init(struct raw_hashinfo *hashinfo) +{ + int i; + + spin_lock_init(&hashinfo->lock); + for (i = 0; i < RAW_HTABLE_SIZE; i++) + INIT_HLIST_HEAD(&hashinfo->ht[i]); +} + +#ifdef CONFIG_PROC_FS +int raw_proc_init(void); +void raw_proc_exit(void); + +struct raw_iter_state { + struct seq_net_private p; + int bucket; +}; + +static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq) +{ + return seq->private; +} +void *raw_seq_start(struct seq_file *seq, loff_t *pos); +void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos); +void raw_seq_stop(struct seq_file *seq, void *v); +#endif + +int raw_hash_sk(struct sock *sk); +void raw_unhash_sk(struct sock *sk); +void raw_init(void); + +struct raw_sock { + /* inet_sock has to be the first member */ + struct inet_sock inet; + struct icmp_filter filter; + u32 ipmr_table; + struct numa_drop_counters drop_counters; +}; + +#define raw_sk(ptr) container_of_const(ptr, struct raw_sock, inet.sk) + +static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if, + int dif, int sdif) +{ +#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) + return inet_bound_dev_eq(READ_ONCE(net->ipv4.sysctl_raw_l3mdev_accept), + bound_dev_if, dif, sdif); +#else + return inet_bound_dev_eq(true, bound_dev_if, dif, sdif); +#endif +} + +#endif /* _RAW_H */ -- cgit v1.3.1