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Date: Sat, 7 Feb 2026 16:52:39 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Viacheslav Dubeyko <slava@dubeyko.com>
Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, bpf@vger.kernel.org,
	Slava.Dubeyko@ibm.com, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v1 1/4] ml-lib: Introduce Machine Learning (ML)
 library declarations
Message-ID: <2026020756-remarry-declared-9187@gregkh>
References: <20260206191136.2609767-1-slava@dubeyko.com>
 <20260206191136.2609767-2-slava@dubeyko.com>
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In-Reply-To: <20260206191136.2609767-2-slava@dubeyko.com>

On Fri, Feb 06, 2026 at 11:11:33AM -0800, Viacheslav Dubeyko wrote:
> + * @kobj: /sys/<subsystem>/<ml_model>/ ML model object
> + * @kobj_unregister: completion state for <ml_model> kernel object
> + */
> +struct ml_lib_model {
> +	atomic_t mode;
> +	atomic_t state;
> +	const char *subsystem_name;
> +	const char *model_name;
> +
> +	struct ml_lib_subsystem *parent;
> +
> +	spinlock_t parent_state_lock;
> +	struct ml_lib_subsystem_state * __rcu parent_state;
> +
> +	spinlock_t options_lock;
> +	struct ml_lib_model_options * __rcu options;
> +
> +	spinlock_t dataset_lock;
> +	struct ml_lib_dataset * __rcu dataset;
> +
> +	struct ml_lib_model_operations *model_ops;
> +	struct ml_lib_subsystem_state_operations *system_state_ops;
> +	struct ml_lib_dataset_operations *dataset_ops;
> +	struct ml_lib_request_config_operations *request_config_ops;
> +
> +	/* /sys/<subsystem>/<ml_model>/ */
> +	struct kobject kobj;
> +	struct completion kobj_unregister;
> +};

Do NOT abuse sysfs for something like this.  Please make your own
filesystem or char device or something else, but this is not what sysfs
is for at all, sorry.

greg k-h