66         struct venus_comm *vcp = (struct venus_comm *) file->private_data;  in coda_psdev_poll()  local
69 	poll_wait(file, &vcp->vc_waitq, wait);  in coda_psdev_poll()
70 	mutex_lock(&vcp->vc_mutex);  in coda_psdev_poll()
71 	if (!list_empty(&vcp->vc_pending))  in coda_psdev_poll()
73 	mutex_unlock(&vcp->vc_mutex);  in coda_psdev_poll()
100         struct venus_comm *vcp = (struct venus_comm *) file->private_data;  in coda_psdev_write()  local
135 		error = coda_downcall(vcp, hdr.opcode, dcbuf);  in coda_psdev_write()
149 	mutex_lock(&vcp->vc_mutex);  in coda_psdev_write()
150 	list_for_each(lh, &vcp->vc_processing) {  in coda_psdev_write()
158 	mutex_unlock(&vcp->vc_mutex);  in coda_psdev_write()
207         struct venus_comm *vcp = (struct venus_comm *) file->private_data;  in coda_psdev_read()  local
214 	mutex_lock(&vcp->vc_mutex);  in coda_psdev_read()
216 	add_wait_queue(&vcp->vc_waitq, &wait);  in coda_psdev_read()
219 	while (list_empty(&vcp->vc_pending)) {  in coda_psdev_read()
228 		mutex_unlock(&vcp->vc_mutex);  in coda_psdev_read()
230 		mutex_lock(&vcp->vc_mutex);  in coda_psdev_read()
234 	remove_wait_queue(&vcp->vc_waitq, &wait);  in coda_psdev_read()
239 	req = list_entry(vcp->vc_pending.next, struct upc_req,uc_chain);  in coda_psdev_read()
256 		list_add_tail(&(req->uc_chain), &vcp->vc_processing);  in coda_psdev_read()
263 	mutex_unlock(&vcp->vc_mutex);  in coda_psdev_read()
269 	struct venus_comm *vcp;  in coda_psdev_open()  local
283 	vcp = &coda_comms[idx];  in coda_psdev_open()
284 	mutex_lock(&vcp->vc_mutex);  in coda_psdev_open()
286 	if (!vcp->vc_inuse) {  in coda_psdev_open()
287 		vcp->vc_inuse++;  in coda_psdev_open()
289 		INIT_LIST_HEAD(&vcp->vc_pending);  in coda_psdev_open()
290 		INIT_LIST_HEAD(&vcp->vc_processing);  in coda_psdev_open()
291 		init_waitqueue_head(&vcp->vc_waitq);  in coda_psdev_open()
292 		vcp->vc_sb = NULL;  in coda_psdev_open()
293 		vcp->vc_seq = 0;  in coda_psdev_open()
295 		file->private_data = vcp;  in coda_psdev_open()
299 	mutex_unlock(&vcp->vc_mutex);  in coda_psdev_open()
306 	struct venus_comm *vcp = (struct venus_comm *) file->private_data;  in coda_psdev_release()  local
309 	if (!vcp || !vcp->vc_inuse ) {  in coda_psdev_release()
314 	mutex_lock(&vcp->vc_mutex);  in coda_psdev_release()
317 	list_for_each_entry_safe(req, tmp, &vcp->vc_pending, uc_chain) {  in coda_psdev_release()
330 	list_for_each_entry_safe(req, tmp, &vcp->vc_processing, uc_chain) {  in coda_psdev_release()
338 	vcp->vc_inuse--;  in coda_psdev_release()
339 	mutex_unlock(&vcp->vc_mutex);  in coda_psdev_release()