On 7/30/26 22:59, Paul E. McKenney wrote:
> On Thu, Jul 30, 2026 at 04:32:46PM +0200, Vlastimil Babka (SUSE) wrote:
>> No module code calls these functions directly. Seems it was always the
>> case. Remove the exports.
>>
>> Signed-off-by: Vlastimil Babka (SUSE) <[email protected]>
>
> Acked-by: Paul E. McKenney <[email protected]>
Thanks!
> Which reminds me... Are you guys interested in taking the kfree_rcu()
> test code from kernel/rcu/rcuscale.c? See for example the kfree_rcu_test
> module parameter.
Hmm, we have a slub kunit test, but I think no such torture/scaling test
infra. Maybe once we have that? What do you think, Harry?
> Thanx, Paul
>
>> ---
>> Based on slab/for-7.3/kfree_rcu_nolock
>> ---
>> mm/slab_common.c | 4 ----
>> 1 file changed, 4 deletions(-)
>>
>> diff --git a/mm/slab_common.c b/mm/slab_common.c
>> index 6750dfa27367..cd155ffc2762 100644
>> --- a/mm/slab_common.c
>> +++ b/mm/slab_common.c
>> @@ -1329,14 +1329,12 @@ void kvfree_rcu_barrier(void)
>> deferred_work_barrier();
>> rcu_barrier();
>> }
>> -EXPORT_SYMBOL_GPL(kvfree_rcu_barrier);
>>
>> void kvfree_rcu_barrier_on_cache(struct kmem_cache *s)
>> {
>> deferred_work_barrier();
>> rcu_barrier();
>> }
>> -EXPORT_SYMBOL_GPL(kvfree_rcu_barrier_on_cache);
>>
>> void __init kvfree_rcu_init(void)
>> {
>> @@ -2163,7 +2161,6 @@ void kvfree_rcu_barrier(void)
>> flush_all_rcu_sheaves();
>> __kvfree_rcu_barrier();
>> }
>> -EXPORT_SYMBOL_GPL(kvfree_rcu_barrier);
>>
>> /**
>> * kvfree_rcu_barrier_on_cache - Wait for in-flight kvfree_rcu() calls on a
>> @@ -2186,7 +2183,6 @@ void kvfree_rcu_barrier_on_cache(struct kmem_cache *s)
>> rcu_barrier();
>> __kvfree_rcu_barrier();
>> }
>> -EXPORT_SYMBOL_GPL(kvfree_rcu_barrier_on_cache);
>>
>> static unsigned long
>> kfree_rcu_shrink_count(struct shrinker *shrink, struct shrink_control *sc)
>>
>> ---
>> base-commit: b01f6ed9ff0c4581fc669044fa5b82a93b4ef144
>> change-id: 20260730-unexport-barriers-439b3f69f791
>>
>>
