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

[Davidlohr Bueso]

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