On Mon, Jul 18, 2022 at 08:15:42AM +0000, Arseniy Krasnov wrote:
Both bits indicate, that next data read call won't be blocked,
but when sk_rcvlowat is not 1,these bits will be set by poll
anyway,thus when user tries to dequeue data, it will wait until
sk_rcvlowat bytes of data will be available.
Signed-off-by: Arseniy Krasnov <AVKrasnov@xxxxxxxxxxxxxx>
---
net/vmw_vsock/af_vsock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index f04abf662ec6..0225f3558e30 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1067,7 +1067,7 @@ static __poll_t vsock_poll(struct file *file, struct socket *sock,
!(sk->sk_shutdown & RCV_SHUTDOWN)) {
bool data_ready_now = false;
int ret = transport->notify_poll_in(
- vsk, 1, &data_ready_now);
+ vsk, sk->sk_rcvlowat, &data_ready_now);
In tcp_poll() we have the following:
int target = sock_rcvlowat(sk, 0, INT_MAX);
Maybe we can do the same here.
Thanks,
Stefano
if (ret < 0) {
mask |= EPOLLERR;
} else {
--
2.25.1
