44 #include <linux/poll.h>
89 	struct vcs_poll_data *poll =  in vcs_notifier()  local
91 	int currcons = poll->cons_num;  in vcs_notifier()
112 	poll->event = code;  in vcs_notifier()
113 	wake_up_interruptible(&poll->waitq);  in vcs_notifier()
114 	kill_fasync(&poll->fasync, SIGIO, fa_band);  in vcs_notifier()
119 vcs_poll_data_free(struct vcs_poll_data *poll)  in vcs_poll_data_free()  argument
121 	unregister_vt_notifier(&poll->notifier);  in vcs_poll_data_free()
122 	kfree(poll);  in vcs_poll_data_free()
128 	struct vcs_poll_data *poll = file->private_data, *kill = NULL;  in vcs_poll_data_get()  local
130 	if (poll)  in vcs_poll_data_get()
131 		return poll;  in vcs_poll_data_get()
133 	poll = kzalloc(sizeof(*poll), GFP_KERNEL);  in vcs_poll_data_get()
134 	if (!poll)  in vcs_poll_data_get()
136 	poll->cons_num = console(file_inode(file));  in vcs_poll_data_get()
137 	init_waitqueue_head(&poll->waitq);  in vcs_poll_data_get()
138 	poll->notifier.notifier_call = vcs_notifier;  in vcs_poll_data_get()
143 	 * support POLLPRI on /dev/vcs* devices i.e. using poll() with  in vcs_poll_data_get()
146 	poll->event = VT_UPDATE;  in vcs_poll_data_get()
148 	if (register_vt_notifier(&poll->notifier) != 0) {  in vcs_poll_data_get()
149 		kfree(poll);  in vcs_poll_data_get()
154 	 * This code may be called either through ->poll() or ->fasync().  in vcs_poll_data_get()
163 		file->private_data = poll;  in vcs_poll_data_get()
166 		kill = poll;  in vcs_poll_data_get()
167 		poll = file->private_data;  in vcs_poll_data_get()
173 	return poll;  in vcs_poll_data_get()
369 	struct vcs_poll_data *poll;  in vcs_read()  local
397 	poll = file->private_data;  in vcs_read()
398 	if (count && poll)  in vcs_read()
399 		poll->event = 0;  in vcs_read()
714 	struct vcs_poll_data *poll = vcs_poll_data_get(file);  in vcs_poll()  local
717 	if (poll) {  in vcs_poll()
718 		poll_wait(file, &poll->waitq, wait);  in vcs_poll()
719 		switch (poll->event) {  in vcs_poll()
737 	struct vcs_poll_data *poll = file->private_data;  in vcs_fasync()  local
739 	if (!poll) {  in vcs_fasync()
743 		poll = vcs_poll_data_get(file);  in vcs_fasync()
744 		if (!poll)  in vcs_fasync()
748 	return fasync_helper(fd, file, on, &poll->fasync);  in vcs_fasync()
772 	struct vcs_poll_data *poll = file->private_data;  in vcs_release()  local
774 	if (poll)  in vcs_release()
775 		vcs_poll_data_free(poll);  in vcs_release()
783 	.poll		= vcs_poll,