180 	struct dlm_user_proc *proc;  in dlm_user_add_ast()  local
200 	proc = ua->proc;  in dlm_user_add_ast()
208 	spin_lock(&proc->asts_spin);  in dlm_user_add_ast()
212 		spin_unlock(&proc->asts_spin);  in dlm_user_add_ast()
218 		list_add_tail(&lkb->lkb_cb_list, &proc->asts);  in dlm_user_add_ast()
219 		wake_up_interruptible(&proc->wait);  in dlm_user_add_ast()
221 	spin_unlock(&proc->asts_spin);  in dlm_user_add_ast()
225 		spin_lock(&proc->locks_spin);  in dlm_user_add_ast()
230 		spin_unlock(&proc->locks_spin);  in dlm_user_add_ast()
236 static int device_user_lock(struct dlm_user_proc *proc,  in device_user_lock()  argument
244 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_lock()
256 	ua->proc = proc;  in device_user_lock()
290 static int device_user_unlock(struct dlm_user_proc *proc,  in device_user_unlock()  argument
297 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_unlock()
304 	ua->proc = proc;  in device_user_unlock()
319 static int device_user_deadlock(struct dlm_user_proc *proc,  in device_user_deadlock()  argument
325 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_deadlock()
379 static int device_user_purge(struct dlm_user_proc *proc,  in device_user_purge()  argument
385 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_user_purge()
389 	error = dlm_user_purge(ls, proc, params->nodeid, params->pid);  in device_user_purge()
503 	struct dlm_user_proc *proc = file->private_data;  in device_write()  local
553 		if (proc)  in device_write()
554 			set_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags);  in device_write()
563 	    (proc && test_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags))) {  in device_write()
573 		if (!proc) {  in device_write()
577 		error = device_user_lock(proc, &kbuf->i.lock);  in device_write()
581 		if (!proc) {  in device_write()
585 		error = device_user_unlock(proc, &kbuf->i.lock);  in device_write()
589 		if (!proc) {  in device_write()
593 		error = device_user_deadlock(proc, &kbuf->i.lock);  in device_write()
597 		if (proc) {  in device_write()
605 		if (proc) {  in device_write()
613 		if (!proc) {  in device_write()
617 		error = device_user_purge(proc, &kbuf->i.purge);  in device_write()
636 	struct dlm_user_proc *proc;  in device_open()  local
643 	proc = kzalloc(sizeof(struct dlm_user_proc), GFP_NOFS);  in device_open()
644 	if (!proc) {  in device_open()
649 	proc->lockspace = ls->ls_local_handle;  in device_open()
650 	INIT_LIST_HEAD(&proc->asts);  in device_open()
651 	INIT_LIST_HEAD(&proc->locks);  in device_open()
652 	INIT_LIST_HEAD(&proc->unlocking);  in device_open()
653 	spin_lock_init(&proc->asts_spin);  in device_open()
654 	spin_lock_init(&proc->locks_spin);  in device_open()
655 	init_waitqueue_head(&proc->wait);  in device_open()
656 	file->private_data = proc;  in device_open()
663 	struct dlm_user_proc *proc = file->private_data;  in device_close()  local
666 	ls = dlm_find_lockspace_local(proc->lockspace);  in device_close()
670 	set_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags);  in device_close()
672 	dlm_clear_proc_locks(ls, proc);  in device_close()
678 	kfree(proc);  in device_close()
783 	struct dlm_user_proc *proc = file->private_data;  in device_read()  local
794 	if (!proc) {  in device_read()
809 	if (test_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags))  in device_read()
812 	spin_lock(&proc->asts_spin);  in device_read()
813 	if (list_empty(&proc->asts)) {  in device_read()
815 			spin_unlock(&proc->asts_spin);  in device_read()
819 		add_wait_queue(&proc->wait, &wait);  in device_read()
823 		if (list_empty(&proc->asts) && !signal_pending(current)) {  in device_read()
824 			spin_unlock(&proc->asts_spin);  in device_read()
826 			spin_lock(&proc->asts_spin);  in device_read()
830 		remove_wait_queue(&proc->wait, &wait);  in device_read()
833 			spin_unlock(&proc->asts_spin);  in device_read()
842 	lkb = list_entry(proc->asts.next, struct dlm_lkb, lkb_cb_list);  in device_read()
850 		spin_unlock(&proc->asts_spin);  in device_read()
857 	spin_unlock(&proc->asts_spin);  in device_read()
881 				 test_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags),  in device_read()
893 	struct dlm_user_proc *proc = file->private_data;  in device_poll()  local
895 	poll_wait(file, &proc->wait, wait);  in device_poll()
897 	spin_lock(&proc->asts_spin);  in device_poll()
898 	if (!list_empty(&proc->asts)) {  in device_poll()
899 		spin_unlock(&proc->asts_spin);  in device_poll()
902 	spin_unlock(&proc->asts_spin);  in device_poll()