69 	struct dev_exception_item *ex, *tmp, *new;  in dev_exceptions_copy()  local
73 	list_for_each_entry(ex, orig, list) {  in dev_exceptions_copy()
74 		new = kmemdup(ex, sizeof(*ex), GFP_KERNEL);  in dev_exceptions_copy()
83 	list_for_each_entry_safe(ex, tmp, dest, list) {  in dev_exceptions_copy()
84 		list_del(&ex->list);  in dev_exceptions_copy()
85 		kfree(ex);  in dev_exceptions_copy()
94 			     struct dev_exception_item *ex)  in dev_exception_add()  argument
100 	excopy = kmemdup(ex, sizeof(*ex), GFP_KERNEL);  in dev_exception_add()
105 		if (walk->type != ex->type)  in dev_exception_add()
107 		if (walk->major != ex->major)  in dev_exception_add()
109 		if (walk->minor != ex->minor)  in dev_exception_add()
112 		walk->access |= ex->access;  in dev_exception_add()
126 			     struct dev_exception_item *ex)  in dev_exception_rm()  argument
133 		if (walk->type != ex->type)  in dev_exception_rm()
135 		if (walk->major != ex->major)  in dev_exception_rm()
137 		if (walk->minor != ex->minor)  in dev_exception_rm()
140 		walk->access &= ~ex->access;  in dev_exception_rm()
150 	struct dev_exception_item *ex, *tmp;  in __dev_exception_clean()  local
152 	list_for_each_entry_safe(ex, tmp, &dev_cgroup->exceptions, list) {  in __dev_exception_clean()
153 		list_del_rcu(&ex->list);  in __dev_exception_clean()
154 		kfree_rcu(ex, rcu);  in __dev_exception_clean()
278 	struct dev_exception_item *ex;  in devcgroup_seq_show()  local
295 		list_for_each_entry_rcu(ex, &devcgroup->exceptions, list) {  in devcgroup_seq_show()
296 			set_access(acc, ex->access);  in devcgroup_seq_show()
297 			set_majmin(maj, ex->major);  in devcgroup_seq_show()
298 			set_majmin(min, ex->minor);  in devcgroup_seq_show()
299 			seq_printf(m, "%c %s:%s %s\n", type_to_char(ex->type),  in devcgroup_seq_show()
324 	struct dev_exception_item *ex;  in match_exception()  local
326 	list_for_each_entry_rcu(ex, exceptions, list) {  in match_exception()
327 		if ((type & DEV_BLOCK) && !(ex->type & DEV_BLOCK))  in match_exception()
329 		if ((type & DEV_CHAR) && !(ex->type & DEV_CHAR))  in match_exception()
331 		if (ex->major != ~0 && ex->major != major)  in match_exception()
333 		if (ex->minor != ~0 && ex->minor != minor)  in match_exception()
336 		if (access & (~ex->access))  in match_exception()
361 	struct dev_exception_item *ex;  in match_exception_partial()  local
363 	list_for_each_entry_rcu(ex, exceptions, list) {  in match_exception_partial()
364 		if ((type & DEV_BLOCK) && !(ex->type & DEV_BLOCK))  in match_exception_partial()
366 		if ((type & DEV_CHAR) && !(ex->type & DEV_CHAR))  in match_exception_partial()
372 		if (ex->major != ~0 && major != ~0 && ex->major != major)  in match_exception_partial()
374 		if (ex->minor != ~0 && minor != ~0 && ex->minor != minor)  in match_exception_partial()
381 		if (!(access & ex->access))  in match_exception_partial()
456 				  struct dev_exception_item *ex)  in parent_has_perm()  argument
462 	return verify_new_ex(parent, ex, childcg->behavior);  in parent_has_perm()
477 				  struct dev_exception_item *ex)  in parent_allows_removal()  argument
492 	return !match_exception_partial(&parent->exceptions, ex->type,  in parent_allows_removal()
493 					ex->major, ex->minor, ex->access);  in parent_allows_removal()
524 	struct dev_exception_item *ex;  in revalidate_active_exceptions()  local
528 		ex = container_of(this, struct dev_exception_item, list);  in revalidate_active_exceptions()
529 		if (!parent_has_perm(devcg, ex))  in revalidate_active_exceptions()
530 			dev_exception_rm(devcg, ex);  in revalidate_active_exceptions()
542 			       struct dev_exception_item *ex)  in propagate_exception()  argument
569 			rc = dev_exception_add(devcg, ex);  in propagate_exception()
579 			dev_exception_rm(devcg, ex);  in propagate_exception()
609 	struct dev_exception_item ex;  in devcgroup_update_access()  local
615 	memset(&ex, 0, sizeof(ex));  in devcgroup_update_access()
649 		ex.type = DEV_BLOCK;  in devcgroup_update_access()
652 		ex.type = DEV_CHAR;  in devcgroup_update_access()
662 		ex.major = ~0;  in devcgroup_update_access()
672 		rc = kstrtou32(temp, 10, &ex.major);  in devcgroup_update_access()
684 		ex.minor = ~0;  in devcgroup_update_access()
694 		rc = kstrtou32(temp, 10, &ex.minor);  in devcgroup_update_access()
705 			ex.access |= ACC_READ;  in devcgroup_update_access()
708 			ex.access |= ACC_WRITE;  in devcgroup_update_access()
711 			ex.access |= ACC_MKNOD;  in devcgroup_update_access()
731 			if (!parent_allows_removal(devcgroup, &ex))  in devcgroup_update_access()
733 			dev_exception_rm(devcgroup, &ex);  in devcgroup_update_access()
737 		if (!parent_has_perm(devcgroup, &ex))  in devcgroup_update_access()
739 		rc = dev_exception_add(devcgroup, &ex);  in devcgroup_update_access()
748 			dev_exception_rm(devcgroup, &ex);  in devcgroup_update_access()
750 			rc = dev_exception_add(devcgroup, &ex);  in devcgroup_update_access()
755 		rc = propagate_exception(devcgroup, &ex);  in devcgroup_update_access()