Re: [PATCH 2/6] lockdep: Change hardirq{s_enabled,_context} to per-cpu variables

[Peter Zijlstra]

On Wed, May 27, 2020 at 05:45:29PM +0200, Peter Zijlstra wrote:
> -do {						\
> -	if (!current->hardirq_context++)	\
> -		current->hardirq_threaded = 0;	\
> +# define lockdep_hardirq_enter()			\
> +do {							\
> +	if (!this_cpu_inc_return(hardirq_context))	\

	this_cpu_inc_return(hardirq_context) == 1

or this_cpu_fetch_inc(), which we don't have.

> +		current->hardirq_threaded = 0;		\