diff options
| author | Alexei Starovoitov <ast@kernel.org> | 2021-10-26 12:29:33 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-10-26 12:30:12 -0700 |
| commit | a94b5aae2a40b164f1d67c37f466f06cb1398ef0 (patch) | |
| tree | 6fc5b73eddb379acff2313d6984eb189cb500f7a /net/core/skmsg.c | |
| parent | cd9733f5d75c94a32544d6ce5be47e14194cf137 (diff) | |
| parent | 67b821502dbd6c9b23715da79cb9b37fa7d969dc (diff) | |
Merge branch 'sock_map: fix ->poll() and update selftests'
Cong Wang says:
====================
This patchset fixes ->poll() for sockets in sockmap and updates
selftests accordingly with select(). Please check each patch
for more details.
Fixes: c50524ec4e3a ("Merge branch 'sockmap: add sockmap support for unix datagram socket'")
Fixes: 89d69c5d0fbc ("Merge branch 'sockmap: introduce BPF_SK_SKB_VERDICT and support UDP'")
Acked-by: John Fastabend <john.fastabend@gmail.com>
---
v4: add a comment in udp_poll()
v3: drop sk_psock_get_checked()
reuse tcp_bpf_sock_is_readable()
v2: rename and reuse ->stream_memory_read()
fix a compile error in sk_psock_get_checked()
Cong Wang (3):
net: rename ->stream_memory_read to ->sock_is_readable
skmsg: extract and reuse sk_msg_is_readable()
net: implement ->sock_is_readable() for UDP and AF_UNIX
====================
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/core/skmsg.c')
| -rw-r--r-- | net/core/skmsg.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 2d6249b28928..a86ef7e844f8 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -474,6 +474,20 @@ int sk_msg_recvmsg(struct sock *sk, struct sk_psock *psock, struct msghdr *msg, } EXPORT_SYMBOL_GPL(sk_msg_recvmsg); +bool sk_msg_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; +} +EXPORT_SYMBOL_GPL(sk_msg_is_readable); + static struct sk_msg *sk_psock_create_ingress_msg(struct sock *sk, struct sk_buff *skb) { |