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| author | Cong Wang <cong.wang@bytedance.com> | 2021-10-08 23:33:04 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-10-26 22:29:33 +0300 |
| commit | fb4e0a5e73d4bb5ab69b7905abd2ec3b580e9b59 (patch) | |
| tree | f870a8ccb700b39fd1d5e50d306031b9b38eb069 /net/ipv4 | |
| parent | 7b50ecfcc6cdfe87488576bc3ed443dc8d083b90 (diff) | |
| download | linux-fb4e0a5e73d4bb5ab69b7905abd2ec3b580e9b59.tar.xz | |
skmsg: Extract and reuse sk_msg_is_readable()
tcp_bpf_sock_is_readable() is pretty much generic,
we can extract it and reuse it for non-TCP sockets.
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211008203306.37525-3-xiyou.wangcong@gmail.com
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tcp_bpf.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c index 7e71e9e278cb..5f4d6f45d87f 100644 --- a/net/ipv4/tcp_bpf.c +++ b/net/ipv4/tcp_bpf.c @@ -150,19 +150,6 @@ int tcp_bpf_sendmsg_redir(struct sock *sk, struct sk_msg *msg, EXPORT_SYMBOL_GPL(tcp_bpf_sendmsg_redir); #ifdef CONFIG_BPF_SYSCALL -static bool tcp_bpf_sock_is_readable(struct sock *sk) -{ - struct sk_psock *psock; - bool empty = true; - - rcu_read_lock(); - psock = sk_psock(sk); - if (likely(psock)) - empty = list_empty(&psock->ingress_msg); - rcu_read_unlock(); - return !empty; -} - static int tcp_msg_wait_data(struct sock *sk, struct sk_psock *psock, long timeo) { @@ -491,7 +478,7 @@ static void tcp_bpf_rebuild_protos(struct proto prot[TCP_BPF_NUM_CFGS], prot[TCP_BPF_BASE].unhash = sock_map_unhash; prot[TCP_BPF_BASE].close = sock_map_close; prot[TCP_BPF_BASE].recvmsg = tcp_bpf_recvmsg; - prot[TCP_BPF_BASE].sock_is_readable = tcp_bpf_sock_is_readable; + prot[TCP_BPF_BASE].sock_is_readable = sk_msg_is_readable; prot[TCP_BPF_TX] = prot[TCP_BPF_BASE]; prot[TCP_BPF_TX].sendmsg = tcp_bpf_sendmsg; |