Messages in this thread Patch in this message | | | From | Xuan Zhuo <> | Subject | [PATCH bpf v2 1/2] xsk: replace datagram_poll by sock_poll_wait | Date | Wed, 25 Nov 2020 14:48:56 +0800 |
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datagram_poll will judge the current socket status (EPOLLIN, EPOLLOUT) based on the traditional socket information (eg: sk_wmem_alloc), but this does not apply to xsk. So this patch uses sock_poll_wait instead of datagram_poll, and the mask is calculated by xsk_poll.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> --- net/xdp/xsk.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c index b014197..0df8651 100644 --- a/net/xdp/xsk.c +++ b/net/xdp/xsk.c @@ -534,11 +534,13 @@ static int xsk_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len) static __poll_t xsk_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait) { - __poll_t mask = datagram_poll(file, sock, wait); + __poll_t mask = 0; struct sock *sk = sock->sk; struct xdp_sock *xs = xdp_sk(sk); struct xsk_buff_pool *pool; + sock_poll_wait(file, sock, wait); + if (unlikely(!xsk_is_bound(xs))) return mask; -- 1.8.3.1
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