Re: [PATCH] lockdep: Print number of locks held by running tasks.

[Matthew Wilcox]

On Mon, Dec 18, 2017 at 09:09:55PM +0900, Tetsuo Handa wrote:
>  		 */
> -		if (p->state == TASK_RUNNING && p != current)
> +		if (p->state == TASK_RUNNING && p != current) {
> +			const int depth = p->lockdep_depth;

READ_ONCE()?

> +			if (depth)
> +				printk("%d lock%s held by %s/%d:\n",
> +				       depth, depth > 1 ? "s" : "", p->comm,
> +				       task_pid_nr(p));
>  			continue;