Re: [PATCH RFC] rcu/segcblist: Add counters to segcblist datastructure

[Davidlohr Bueso <dave@xxxxxxxxxxxx>]

On Sat, 18 Jul 2020, Joel Fernandes (Google) wrote:

> +/* Move from's segment length to to's segment. */
> +static void rcu_segcblist_move_seglen(struct rcu_segcblist *rsclp, int from, int to)
> +{
> +	long len = rcu_segcblist_get_seglen(rsclp, from);
> +
> +	if (!len || from == to)
> +		return;

Nit: You probably wanna do the parameter sanity checks before the
atomic_read.

Thanks,
Davidlohr