182 	struct dlm_user_proc *proc;  in dlm_user_add_ast()  local
202 	proc = ua->proc;  in dlm_user_add_ast()
210 	spin_lock(&proc->asts_spin);  in dlm_user_add_ast()
214 		spin_unlock(&proc->asts_spin);  in dlm_user_add_ast()
220 		list_add_tail(&lkb->lkb_cb_list, &proc->asts);  in dlm_user_add_ast()
221 		wake_up_interruptible(&proc->wait);  in dlm_user_add_ast()
223 	spin_unlock(&proc->asts_spin);  in dlm_user_add_ast()
227 		spin_lock(&proc->locks_spin);  in dlm_user_add_ast()
232 		spin_unlock(&proc->locks_spin);  in dlm_user_add_ast()
238 static int device_user_lock(struct dlm_user_proc *proc,  in device_user_lock()  argument
246 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_lock()
258 	ua->proc = proc;  in device_user_lock()
292 static int device_user_unlock(struct dlm_user_proc *proc,  in device_user_unlock()  argument
299 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_unlock()
306 	ua->proc = proc;  in device_user_unlock()
321 static int device_user_deadlock(struct dlm_user_proc *proc,  in device_user_deadlock()  argument
327 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_deadlock()
382 static int device_user_purge(struct dlm_user_proc *proc,  in device_user_purge()  argument
388 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_purge()
392 	error = dlm_user_purge(ls, proc, params->nodeid, params->pid);  in device_user_purge()
506 	struct dlm_user_proc *proc = file->private_data;  in device_write()  local
551 		if (proc)  in device_write()
552 			set_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags);  in device_write()
561 	    (proc && test_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags))) {  in device_write()
571 		if (!proc) {  in device_write()
575 		error = device_user_lock(proc, &kbuf->i.lock);  in device_write()
579 		if (!proc) {  in device_write()
583 		error = device_user_unlock(proc, &kbuf->i.lock);  in device_write()
587 		if (!proc) {  in device_write()
591 		error = device_user_deadlock(proc, &kbuf->i.lock);  in device_write()
595 		if (proc) {  in device_write()
603 		if (proc) {  in device_write()
611 		if (!proc) {  in device_write()
615 		error = device_user_purge(proc, &kbuf->i.purge);  in device_write()
634 	struct dlm_user_proc *proc;  in device_open()  local
641 	proc = kzalloc(sizeof(struct dlm_user_proc), GFP_NOFS);  in device_open()
642 	if (!proc) {  in device_open()
647 	proc->lockspace = ls->ls_local_handle;  in device_open()
648 	INIT_LIST_HEAD(&proc->asts);  in device_open()
649 	INIT_LIST_HEAD(&proc->locks);  in device_open()
650 	INIT_LIST_HEAD(&proc->unlocking);  in device_open()
651 	spin_lock_init(&proc->asts_spin);  in device_open()
652 	spin_lock_init(&proc->locks_spin);  in device_open()
653 	init_waitqueue_head(&proc->wait);  in device_open()
654 	file->private_data = proc;  in device_open()
661 	struct dlm_user_proc *proc = file->private_data;  in device_close()  local
664 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_close()
668 	set_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags);  in device_close()
670 	dlm_clear_proc_locks(ls, proc);  in device_close()
676 	kfree(proc);  in device_close()
781 	struct dlm_user_proc *proc = file->private_data;  in device_read()  local
793 	if (!proc) {  in device_read()
808 	if (test_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags))  in device_read()
811 	spin_lock(&proc->asts_spin);  in device_read()
812 	if (list_empty(&proc->asts)) {  in device_read()
814 			spin_unlock(&proc->asts_spin);  in device_read()
818 		add_wait_queue(&proc->wait, &wait);  in device_read()
822 		if (list_empty(&proc->asts) && !signal_pending(current)) {  in device_read()
823 			spin_unlock(&proc->asts_spin);  in device_read()
825 			spin_lock(&proc->asts_spin);  in device_read()
829 		remove_wait_queue(&proc->wait, &wait);  in device_read()
832 			spin_unlock(&proc->asts_spin);  in device_read()
841 	lkb = list_entry(proc->asts.next, struct dlm_lkb, lkb_cb_list);  in device_read()
852 		spin_unlock(&proc->asts_spin);  in device_read()
859 	spin_unlock(&proc->asts_spin);  in device_read()
880 				 test_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags),  in device_read()
892 	struct dlm_user_proc *proc = file->private_data;  in device_poll()  local
894 	poll_wait(file, &proc->wait, wait);  in device_poll()
896 	spin_lock(&proc->asts_spin);  in device_poll()
897 	if (!list_empty(&proc->asts)) {  in device_poll()
898 		spin_unlock(&proc->asts_spin);  in device_poll()
901 	spin_unlock(&proc->asts_spin);  in device_poll()