rcutorture: Use this_cpu_inc() for rcu_torture_count[] and rcu_torture_batch[]

Currently __this_cpu_inc() is used to increment elements of both
the rcu_torture_count[] and rcu_torture_batch[] arrays.  However,
this can fail when the increments can happen in interrupt handlers,
as recently became possible.  This commit therefore upgrades the uses
of __this_cpu_inc() to the interrupt-safe this_cpu_inc().

KCSAN located this issue.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2026-07-11 16:51:41 -07:00
commit ed55bb9150