diff options
Diffstat (limited to 'kernel/tracepoint.c')
| -rw-r--r-- | kernel/tracepoint.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 685c50ae6300..671b13457387 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -212,11 +212,10 @@ static int tracepoint_add_func(struct tracepoint *tp, } /* - * rcu_assign_pointer has a smp_wmb() which makes sure that the new - * probe callbacks array is consistent before setting a pointer to it. - * This array is referenced by __DO_TRACE from - * include/linux/tracepoints.h. A matching smp_read_barrier_depends() - * is used. + * rcu_assign_pointer has as smp_store_release() which makes sure + * that the new probe callbacks array is consistent before setting + * a pointer to it. This array is referenced by __DO_TRACE from + * include/linux/tracepoint.h using rcu_dereference_sched(). */ rcu_assign_pointer(tp->funcs, tp_funcs); if (!static_key_enabled(&tp->key)) |