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: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/mm/slab.h b/mm/slab.h
index f0a552ff7b9b..f96b49e4704e 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -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
+
+};