KMEM_CACHE(): simplify slab cache creation

[powerpc.git] / include / linux / slab.h

diff --git a/include/linux/slab.h b/include/linux/slab.h
index a9befa5..e14b4c3 100644 (file)
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -57,6 +57,18 @@ unsigned int kmem_cache_size(struct kmem_cache *);
 const char *kmem_cache_name(struct kmem_cache *);
 int kmem_ptr_validate(struct kmem_cache *cachep, const void *ptr);
 
+/*
+ * Please use this macro to create slab caches. Simply specify the
+ * name of the structure and maybe some flags that are listed above.
+ *
+ * The alignment of the struct determines object alignment. If you
+ * f.e. add ____cacheline_aligned_in_smp to the struct declaration
+ * then the objects will be properly aligned in SMP configurations.
+ */
+#define KMEM_CACHE(__struct, __flags) kmem_cache_create(#__struct,\
+               sizeof(struct __struct), __alignof__(struct __struct),\
+               (__flags), NULL, NULL)
+
 #ifdef CONFIG_NUMA
 extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 #else