SK_WAIT_DATA(9)                          Linux Networking                         SK_WAIT_DATA(9)



NAME
       sk_wait_data - wait for data to arrive at sk_receive_queue

SYNOPSIS
       int sk_wait_data(struct sock * sk, long * timeo, const struct sk_buff * skb);

ARGUMENTS
       sk
           sock to wait on

       timeo
           for how long

       skb
           last skb seen on sk_receive_queue

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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                           SK_WAIT_DATA(9)