Takenori Nagano <t-nagano at ah.jp.nec.com> writes:
> This patch adds new notifier function tunable_notifier_chain. Its base is
> atomic_notifier_chain.
> +/**
> + * tunable_notifier_chain_register - Add notifier to an tunable notifier chain
> + * @nh: Pointer to head of the tunable notifier chain
> + * @n: New entry in notifier chain
> + * @name: Pointer to the name of this notifier chain
> + * @desc: Pointer to the description of new entry
> + *
> + * Adds a notifier to an tunable notifier chain and makes control dir.
> + *
> + * Returns zero on success or %-ENODEV on failure.
> + */
> +
> +int tunable_notifier_chain_register(struct tunable_notifier_head *nh,
> + struct tunable_notifier_block *n, char *name, char *desc)
> +{
> + unsigned long flags;
> + int ret = -EINVAL;
> + struct dentry *nh_dir, *nb_dir, *pri_dentry, *desc_dentry = NULL;
> +
> + if (!name)
> + goto nb_fail;
> +
> + ret = -ENOMEM;
> + if (!nh->dir) {
> + nh_dir = debugfs_create_dir(nh->name, NULL);
Hmm. debugfs does not appear to be an appropriate place to create
files that are supposed to be part of a serious user space interface.
Eric
