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()
266 	ua->proc = proc;  in device_user_lock()
311 static int device_user_unlock(struct dlm_user_proc *proc,  in device_user_unlock()  argument
318 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_unlock()
325 	ua->proc = proc;  in device_user_unlock()
340 static int device_user_deadlock(struct dlm_user_proc *proc,  in device_user_deadlock()  argument
346 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_deadlock()
401 static int device_user_purge(struct dlm_user_proc *proc,  in device_user_purge()  argument
407 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_purge()
411 	error = dlm_user_purge(ls, proc, params->nodeid, params->pid);  in device_user_purge()
525 	struct dlm_user_proc *proc = file->private_data;  in device_write()  local
570 		if (proc)  in device_write()
571 			set_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags);  in device_write()
580 	    (proc && test_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags))) {  in device_write()
590 		if (!proc) {  in device_write()
594 		error = device_user_lock(proc, &kbuf->i.lock);  in device_write()
598 		if (!proc) {  in device_write()
602 		error = device_user_unlock(proc, &kbuf->i.lock);  in device_write()
606 		if (!proc) {  in device_write()
610 		error = device_user_deadlock(proc, &kbuf->i.lock);  in device_write()
614 		if (proc) {  in device_write()
622 		if (proc) {  in device_write()
630 		if (!proc) {  in device_write()
634 		error = device_user_purge(proc, &kbuf->i.purge);  in device_write()
653 	struct dlm_user_proc *proc;  in device_open()  local
660 	proc = kzalloc(sizeof(struct dlm_user_proc), GFP_NOFS);  in device_open()
661 	if (!proc) {  in device_open()
666 	proc->lockspace = ls->ls_local_handle;  in device_open()
667 	INIT_LIST_HEAD(&proc->asts);  in device_open()
668 	INIT_LIST_HEAD(&proc->locks);  in device_open()
669 	INIT_LIST_HEAD(&proc->unlocking);  in device_open()
670 	spin_lock_init(&proc->asts_spin);  in device_open()
671 	spin_lock_init(&proc->locks_spin);  in device_open()
672 	init_waitqueue_head(&proc->wait);  in device_open()
673 	file->private_data = proc;  in device_open()
680 	struct dlm_user_proc *proc = file->private_data;  in device_close()  local
683 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_close()
687 	set_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags);  in device_close()
689 	dlm_clear_proc_locks(ls, proc);  in device_close()
695 	kfree(proc);  in device_close()
800 	struct dlm_user_proc *proc = file->private_data;  in device_read()  local
812 	if (!proc) {  in device_read()
827 	if (test_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags))  in device_read()
830 	spin_lock(&proc->asts_spin);  in device_read()
831 	if (list_empty(&proc->asts)) {  in device_read()
833 			spin_unlock(&proc->asts_spin);  in device_read()
837 		add_wait_queue(&proc->wait, &wait);  in device_read()
841 		if (list_empty(&proc->asts) && !signal_pending(current)) {  in device_read()
842 			spin_unlock(&proc->asts_spin);  in device_read()
844 			spin_lock(&proc->asts_spin);  in device_read()
848 		remove_wait_queue(&proc->wait, &wait);  in device_read()
851 			spin_unlock(&proc->asts_spin);  in device_read()
860 	lkb = list_entry(proc->asts.next, struct dlm_lkb, lkb_cb_list);  in device_read()
871 		spin_unlock(&proc->asts_spin);  in device_read()
878 	spin_unlock(&proc->asts_spin);  in device_read()
902 				 test_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags),  in device_read()
914 	struct dlm_user_proc *proc = file->private_data;  in device_poll()  local
916 	poll_wait(file, &proc->wait, wait);  in device_poll()
918 	spin_lock(&proc->asts_spin);  in device_poll()
919 	if (!list_empty(&proc->asts)) {  in device_poll()
920 		spin_unlock(&proc->asts_spin);  in device_poll()
923 	spin_unlock(&proc->asts_spin);  in device_poll()