Hi Tejun,
Thanks for the input.
>> +     cgrp = cgroup_get_from_kernfs_id(id);
>> +     if (!cgrp)
>> +             return -ENOENT;
>> +
> >+     css = cgroup_get_e_css(cgrp, &io_cgrp_subsys);
>> +     if (!css)
>> +             return -ENOENT;
>> +
>> +     blkcg = css_to_blkcg(css);
>> +     if (!blkcg)
>> +             return -ENOENT;
> >+		return -EINVAL;
> >+	strlcpy(blkcg->app_id, buf, len);

>Shouldn't the cgrp and css be put before exit?
[Muneendra]Correct me if iam wrong.
You mean to add cgroup_put(cgrp) and css_put(css) before exit ?

> +
>
>  	struct list_head		all_blkcgs_node;
> +	char                            app_id[APPID_LEN];

>Please use a more specific name and gate them behind a CONFIG.
[Muneendra] Agree will do the changes.

Regards,
Muneendra.

Thanks.

--
tejun