diff options
| author | Eric Dumazet <edumazet@google.com> | 2019-10-24 08:44:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-10 13:27:48 +0300 |
| commit | eaf548feaa17308317bdac2903c1be820e5c186a (patch) | |
| tree | 17b7f602330726cd6eea5e4e04f367ed9129ec8e /net/ipv4/udp.c | |
| parent | afa1f5e98c1114d509a9c73747f0940de70bb494 (diff) | |
| download | linux-eaf548feaa17308317bdac2903c1be820e5c186a.tar.xz | |
net: use skb_queue_empty_lockless() in poll() handlers
[ Upstream commit 3ef7cf57c72f32f61e97f8fa401bc39ea1f1a5d4 ]
Many poll() handlers are lockless. Using skb_queue_empty_lockless()
instead of skb_queue_empty() is more appropriate.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index c11eb6c9b4ff..8877bd140a0d 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2651,7 +2651,7 @@ __poll_t udp_poll(struct file *file, struct socket *sock, poll_table *wait) __poll_t mask = datagram_poll(file, sock, wait); struct sock *sk = sock->sk; - if (!skb_queue_empty(&udp_sk(sk)->reader_queue)) + if (!skb_queue_empty_lockless(&udp_sk(sk)->reader_queue)) mask |= EPOLLIN | EPOLLRDNORM; /* Check for false positives due to checksum errors */ |