[PATCH] mm/slab: stop exporting kvfree_rcu_barrier[_on_cache]()

["Vlastimil Babka (SUSE)" <vbabka@kernel.org>]

No module code calls these functions directly. Seems it was always the
case. Remove the exports.

Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
---
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