Commit bbe658d6 authored Dec 12, 2024 by Uladzislau Rezki (Sony) Committed by Vlastimil Babka Jan 11, 2025

mm/slab: Move kvfree_rcu() into SLAB



Move kvfree_rcu() functionality to the slab_common.c file.

The reason to have kvfree_rcu() functionality as part of SLAB is that
there is a clear trend and need of closer integration. One of the recent
example is creating a barrier function for SLAB caches.

Another reason is to prevent of having several implementations of RCU
machinery for reclaiming objects after a GP. As future steps, it can be
more integrated(easier) with SLAB internals.

Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Acked-by: Hyeonggon Yoo <hyeonggon.yoo@sk.com>
Tested-by: Hyeonggon Yoo <hyeonggon.yoo@sk.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

parent c18bcd85

include/linux/rcupdate.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -118,7 +118,6 @@ static inline void call_rcu_hurry(struct rcu_head *head, rcu_callback_t func)

		/* Internal to kernel */
		void rcu_init(void);
		void __init kvfree_rcu_init(void);
		extern int rcu_scheduler_active;
		void rcu_sched_clock_irq(int user);

include/linux/slab.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -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 */

kernel/rcu/tree.c

+0 −879

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mm/slab_common.c

+880 −0

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