1 files changed, 24 insertions, 0 deletions

diff --git a/include/linux/slab.h b/include/linux/slab.h
index 67d5d94b783a..0dd2dfa7beca 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -93,6 +93,30 @@
                                 (unsigned long)ZERO_SIZE_PTR)
 
 /*
+ * Common fields provided in kmem_cache by all slab allocators
+ * This struct is either used directly by the allocator (SLOB)
+ * or the allocator must include definitions for all fields
+ * provided in kmem_cache_common in their definition of kmem_cache.
+ *
+ * Once we can do anonymous structs (C11 standard) we could put a
+ * anonymous struct definition in these allocators so that the
+ * separate allocations in the kmem_cache structure of SLAB and
+ * SLUB is no longer needed.
+ */
+#ifdef CONFIG_SLOB
+struct kmem_cache {
+        unsigned int object_size;/* The original size of the object */
+        unsigned int size;      /* The aligned/padded/added on size  */
+        unsigned int align;     /* Alignment as calculated */
+        unsigned long flags;    /* Active flags on the slab */
+        const char *name;       /* Slab name for sysfs */
+        int refcount;           /* Use counter */
+        void (*ctor)(void *);   /* Called on object slot creation */
+        struct list_head list;  /* List of all slab caches on the system */
+};
+#endif
+
+/*
  * struct kmem_cache related prototypes
  */
 void __init kmem_cache_init(void);