Merge branch 'slab/for-6.14/kfree_rcu_move' into slab/for-next

Merge the slab feature branch for 6.14:

- Move the kfree_rcu() implementation from RCU to SLAB subsystem
  (Uladzislau Rezki)

Author: tehcaster

include/linux/slab.h

@@ -1099,5 +1099,6 @@ unsigned int kmem_cache_size(struct kmem_cache *s);
 size_t kmalloc_size_roundup(size_t size);
 
 void __init kmem_cache_init_late(void);
+void __init kvfree_rcu_init(void);
 
 #endif	/* _LINUX_SLAB_H */

init/main.c

@@ -992,6 +992,7 @@ void start_kernel(void)
 	workqueue_init_early();
 
 	rcu_init();
+	kvfree_rcu_init();
 
 	/* Trace events are available after this */
 	trace_init();