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Commit ca34956b authored by Christoph Lameter's avatar Christoph Lameter Committed by Pekka Enberg
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slab: Common definition for kmem_cache_node 



Put the definitions for the kmem_cache_node structures together so that
we have one structure. That will allow us to create more common fields in
the future which could yield more opportunities to share code.

Signed-off-by: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarPekka Enberg <penberg@kernel.org>
parent ce8eb6c4

include/linux/slub_def.h

+0 −11
Original line number Diff line number Diff line
@@ -53,17 +53,6 @@ struct kmem_cache_cpu { 
#endif

};



struct kmem_cache_node {

	spinlock_t list_lock;	/* Protect partial list and nr_partial */

	unsigned long nr_partial;

	struct list_head partial;

#ifdef CONFIG_SLUB_DEBUG

	atomic_long_t nr_slabs;

	atomic_long_t total_objects;

	struct list_head full;

#endif

};



/*

 * Word size structure that can be atomically updated or read and that

 * contains both the order and the number of objects that a slab of the

mm/slab.c

+0 −17
Original line number Diff line number Diff line
@@ -285,23 +285,6 @@ struct arraycache_init { 
	void *entries[BOOT_CPUCACHE_ENTRIES];

};



/*

 * The slab lists for all objects.

 */

struct kmem_cache_node {

	struct list_head slabs_partial;	/* partial list first, better asm code */

	struct list_head slabs_full;

	struct list_head slabs_free;

	unsigned long free_objects;

	unsigned int free_limit;

	unsigned int colour_next;	/* Per-node cache coloring */

	spinlock_t list_lock;

	struct array_cache *shared;	/* shared per node */

	struct array_cache **alien;	/* on other nodes */

	unsigned long next_reap;	/* updated without locking */

	int free_touched;		/* updated without locking */

};



/*

 * Need this for bootstrapping a per node allocator.

 */

mm/slab.h

+32 −0
Original line number Diff line number Diff line
@@ -239,3 +239,35 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x) 
	return s;

}

#endif





/*

 * The slab lists for all objects.

 */

struct kmem_cache_node {

	spinlock_t list_lock;



#ifdef CONFIG_SLAB

	struct list_head slabs_partial;	/* partial list first, better asm code */

	struct list_head slabs_full;

	struct list_head slabs_free;

	unsigned long free_objects;

	unsigned int free_limit;

	unsigned int colour_next;	/* Per-node cache coloring */

	struct array_cache *shared;	/* shared per node */

	struct array_cache **alien;	/* on other nodes */

	unsigned long next_reap;	/* updated without locking */

	int free_touched;		/* updated without locking */

#endif



#ifdef CONFIG_SLUB

	unsigned long nr_partial;

	struct list_head partial;

#ifdef CONFIG_SLUB_DEBUG

	atomic_long_t nr_slabs;

	atomic_long_t total_objects;

	struct list_head full;

#endif

#endif



};