459 	struct pipe_inode_info *pipe = file->private_data;  in wait_for_dump_helpers()  local
461 	pipe_lock(pipe);  in wait_for_dump_helpers()
462 	pipe->readers++;  in wait_for_dump_helpers()
463 	pipe->writers--;  in wait_for_dump_helpers()
464 	wake_up_interruptible_sync(&pipe->wait);  in wait_for_dump_helpers()
465 	kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);  in wait_for_dump_helpers()
466 	pipe_unlock(pipe);  in wait_for_dump_helpers()
472 	wait_event_interruptible(pipe->wait, pipe->readers == 1);  in wait_for_dump_helpers()
474 	pipe_lock(pipe);  in wait_for_dump_helpers()
475 	pipe->readers--;  in wait_for_dump_helpers()
476 	pipe->writers++;  in wait_for_dump_helpers()
477 	pipe_unlock(pipe);  in wait_for_dump_helpers()