Name
sk_wait_data —
wait for data to arrive at sk_receive_queue
Synopsis
int fsfuncsk_wait_data ( | struct sock * sk, |
| | long * timeo); |
Arguments
sk
sock to wait on
timeo
for how long
Description
Now socket state including sk->sk_err is changed only under lock,
hence we may omit checks after joining wait queue.
We check receive queue before schedule only as optimization;
it is very likely that release_sock added new data.