static void igt_wake_all_sync(atomic_t *ready,
atomic_t *set,
atomic_t *done,
wait_queue_head_t *wq,
int count)
{
atomic_set(set, count);
atomic_set(ready, 0);
wake_up_all(wq);
wait_var_event(set, !atomic_read(set));
atomic_set(ready, count);
atomic_set(done, count);
}
/*
* Purge in-memory cell database.
*/
void afs_cell_purge(struct afs_net *net)
{
struct afs_cell *ws;
_enter("");
write_seqlock(&net->cells_lock);
ws = rcu_access_pointer(net->ws_cell);
RCU_INIT_POINTER(net->ws_cell, NULL);
write_sequnlock(&net->cells_lock);
afs_put_cell(net, ws);
_debug("del timer");
if (del_timer_sync(&net->cells_timer))
atomic_dec(&net->cells_outstanding);
_debug("kick mgr");
afs_queue_cell_manager(net);
_debug("wait");
wait_var_event(&net->cells_outstanding,
!atomic_read(&net->cells_outstanding));
_leave("");
}
/*
* close the RxRPC socket AFS was using
*/
void afs_close_socket(struct afs_net *net)
{
_enter("");
kernel_listen(net->socket, 0);
flush_workqueue(afs_async_calls);
if (net->spare_incoming_call) {
afs_put_call(net->spare_incoming_call);
net->spare_incoming_call = NULL;
}
_debug("outstanding %u", atomic_read(&net->nr_outstanding_calls));
wait_var_event(&net->nr_outstanding_calls,
!atomic_read(&net->nr_outstanding_calls));
_debug("no outstanding calls");
kernel_sock_shutdown(net->socket, SHUT_RDWR);
flush_workqueue(afs_async_calls);
sock_release(net->socket);
_debug("dework");
_leave("");
}