26 static const struct sysfs_ops *sysfs_file_ops(struct kernfs_node *kn)  in sysfs_file_ops()  argument
28 	struct kobject *kobj = kn->parent->priv;  in sysfs_file_ops()
30 	if (kn->flags & KERNFS_LOCKDEP)  in sysfs_file_ops()
31 		lockdep_assert_held(kn);  in sysfs_file_ops()
43 	struct kobject *kobj = of->kn->parent->priv;  in sysfs_kf_seq_show()
44 	const struct sysfs_ops *ops = sysfs_file_ops(of->kn);  in sysfs_kf_seq_show()
61 		count = ops->show(kobj, of->kn->priv, buf);  in sysfs_kf_seq_show()
83 	struct bin_attribute *battr = of->kn->priv;  in sysfs_kf_bin_read()
84 	struct kobject *kobj = of->kn->parent->priv;  in sysfs_kf_bin_read()
107 	const struct sysfs_ops *ops = sysfs_file_ops(of->kn);  in sysfs_kf_read()
108 	struct kobject *kobj = of->kn->parent->priv;  in sysfs_kf_read()
117 	len = ops->show(kobj, of->kn->priv, buf);  in sysfs_kf_read()
133 	const struct sysfs_ops *ops = sysfs_file_ops(of->kn);  in sysfs_kf_write()
134 	struct kobject *kobj = of->kn->parent->priv;  in sysfs_kf_write()
139 	return ops->store(kobj, of->kn->priv, buf, count);  in sysfs_kf_write()
146 	struct bin_attribute *battr = of->kn->priv;  in sysfs_kf_bin_write()
147 	struct kobject *kobj = of->kn->parent->priv;  in sysfs_kf_bin_write()
167 	struct bin_attribute *battr = of->kn->priv;  in sysfs_kf_bin_mmap()
168 	struct kobject *kobj = of->kn->parent->priv;  in sysfs_kf_bin_mmap()
175 	struct kernfs_node *kn = kobj->sd, *tmp;  in sysfs_notify()  local
177 	if (kn && dir)  in sysfs_notify()
178 		kn = kernfs_find_and_get(kn, dir);  in sysfs_notify()
180 		kernfs_get(kn);  in sysfs_notify()
182 	if (kn && attr) {  in sysfs_notify()
183 		tmp = kernfs_find_and_get(kn, attr);  in sysfs_notify()
184 		kernfs_put(kn);  in sysfs_notify()
185 		kn = tmp;  in sysfs_notify()
188 	if (kn) {  in sysfs_notify()
189 		kernfs_notify(kn);  in sysfs_notify()
190 		kernfs_put(kn);  in sysfs_notify()
252 	struct kernfs_node *kn;  in sysfs_add_file_mode_ns()  local
306 	kn = __kernfs_create_file(parent, attr->name, mode & 0777, uid, gid,  in sysfs_add_file_mode_ns()
308 	if (IS_ERR(kn)) {  in sysfs_add_file_mode_ns()
309 		if (PTR_ERR(kn) == -EEXIST)  in sysfs_add_file_mode_ns()
311 		return PTR_ERR(kn);  in sysfs_add_file_mode_ns()
395 	struct kernfs_node *kn;  in sysfs_chmod_file()  local
399 	kn = kernfs_find_and_get(kobj->sd, attr->name);  in sysfs_chmod_file()
400 	if (!kn)  in sysfs_chmod_file()
403 	newattrs.ia_mode = (mode & S_IALLUGO) | (kn->mode & ~S_IALLUGO);  in sysfs_chmod_file()
406 	rc = kernfs_setattr(kn, &newattrs);  in sysfs_chmod_file()
408 	kernfs_put(kn);  in sysfs_chmod_file()
426 	struct kernfs_node *kn;  in sysfs_break_active_protection()  local
429 	kn = kernfs_find_and_get(kobj->sd, attr->name);  in sysfs_break_active_protection()
430 	if (kn)  in sysfs_break_active_protection()
431 		kernfs_break_active_protection(kn);  in sysfs_break_active_protection()
432 	return kn;  in sysfs_break_active_protection()
447 void sysfs_unbreak_active_protection(struct kernfs_node *kn)  in sysfs_unbreak_active_protection()  argument
449 	struct kobject *kobj = kn->parent->priv;  in sysfs_unbreak_active_protection()
451 	kernfs_unbreak_active_protection(kn);  in sysfs_unbreak_active_protection()
452 	kernfs_put(kn);  in sysfs_unbreak_active_protection()
484 	struct kernfs_node *kn;  in sysfs_remove_file_self()  local
487 	kn = kernfs_find_and_get(parent, attr->name);  in sysfs_remove_file_self()
488 	if (WARN_ON_ONCE(!kn))  in sysfs_remove_file_self()
491 	ret = kernfs_remove_self(kn);  in sysfs_remove_file_self()
493 	kernfs_put(kn);  in sysfs_remove_file_self()
564 static int internal_change_owner(struct kernfs_node *kn, kuid_t kuid,  in internal_change_owner()  argument
572 	return kernfs_setattr(kn, &newattrs);  in internal_change_owner()
592 	struct kernfs_node *kn = NULL;  in sysfs_link_change_owner()  local
599 	kn = kernfs_find_and_get_ns(kobj->sd, name, targ->sd->ns);  in sysfs_link_change_owner()
600 	if (!kn)  in sysfs_link_change_owner()
604 	if (kernfs_type(kn) != KERNFS_LINK)  in sysfs_link_change_owner()
606 	if (kn->symlink.target_kn->priv != targ)  in sysfs_link_change_owner()
609 	error = internal_change_owner(kn, kuid, kgid);  in sysfs_link_change_owner()
612 	kernfs_put(kn);  in sysfs_link_change_owner()
631 	struct kernfs_node *kn;  in sysfs_file_change_owner()  local
640 	kn = kernfs_find_and_get(kobj->sd, name);  in sysfs_file_change_owner()
641 	if (!kn)  in sysfs_file_change_owner()
644 	error = internal_change_owner(kn, kuid, kgid);  in sysfs_file_change_owner()
646 	kernfs_put(kn);  in sysfs_file_change_owner()