diff options
author | Christoph Hellwig <hch@lst.de> | 2018-04-09 15:27:02 +0200 |
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committer | Christoph Hellwig <hch@lst.de> | 2018-05-26 09:16:44 +0200 |
commit | 2c7d3dacebd4b432acc5011bf69a986f366d851d (patch) | |
tree | 5ad1eda2def55ef8059cf700ebae2fe3fae7441f /net/ipv4 | |
parent | 984652dd8b1f0998b9a181944ad5a00d06f9586f (diff) | |
download | linux-2c7d3dacebd4b432acc5011bf69a986f366d851d.tar.bz2 |
net/tcp: convert to ->poll_mask
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'net/ipv4')
-rw-r--r-- | net/ipv4/af_inet.c | 2 | ||||
-rw-r--r-- | net/ipv4/tcp.c | 23 |
2 files changed, 7 insertions, 18 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index eaed0367e669..116e3cd11515 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -986,7 +986,7 @@ const struct proto_ops inet_stream_ops = { .socketpair = sock_no_socketpair, .accept = inet_accept, .getname = inet_getname, - .poll = tcp_poll, + .poll_mask = tcp_poll_mask, .ioctl = inet_ioctl, .listen = inet_listen, .shutdown = inet_shutdown, diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 9ce1c726185e..643c1ba27338 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -494,32 +494,21 @@ static inline bool tcp_stream_is_readable(const struct tcp_sock *tp, } /* - * Wait for a TCP event. - * - * Note that we don't need to lock the socket, as the upper poll layers - * take care of normal races (between the test and the event) and we don't - * go look at any of the socket buffers directly. + * Socket is not locked. We are protected from async events by poll logic and + * correct handling of state changes made by other threads is impossible in + * any case. */ -__poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait) +__poll_t tcp_poll_mask(struct socket *sock, __poll_t events) { - __poll_t mask; struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); + __poll_t mask = 0; int state; - sock_poll_wait(file, sk_sleep(sk), wait); - state = inet_sk_state_load(sk); if (state == TCP_LISTEN) return inet_csk_listen_poll(sk); - /* Socket is not locked. We are protected from async events - * by poll logic and correct handling of state changes - * made by other threads is impossible in any case. - */ - - mask = 0; - /* * EPOLLHUP is certainly not done right. But poll() doesn't * have a notion of HUP in just one direction, and for a @@ -600,7 +589,7 @@ __poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait) return mask; } -EXPORT_SYMBOL(tcp_poll); +EXPORT_SYMBOL(tcp_poll_mask); int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg) { |