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authorXuan Zhuo <xuanzhuo@linux.alibaba.com>2020-12-01 16:56:57 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2020-12-03 03:14:14 +0300
commitf5da54187e33dce9bea63170667dbb0ca8d98194 (patch)
tree89213db4773977f0fb2e9d2575f4ef8428a4e499 /net/xdp/xsk.c
parent156c9b70dbfb83eeeff39e9202eb5f8bb6d0fd04 (diff)
downloadlinux-f5da54187e33dce9bea63170667dbb0ca8d98194.tar.xz
xsk: Replace datagram_poll by sock_poll_wait
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. Fixes: c497176cb2e4 ("xsk: add Rx receive functions and poll support") Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/bpf/e82f4697438cd63edbf271ebe1918db8261b7c09.1606555939.git.xuanzhuo@linux.alibaba.com
Diffstat (limited to 'net/xdp/xsk.c')
-rw-r--r--net/xdp/xsk.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index b7b039bd9d03..9bbfd8adbb73 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -471,11 +471,13 @@ 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;