[PATCH] tiny kmem_cache_destroy doc tweak

[John Levon]

Make it clear that _destroy() won't do the kmem_cache_free()s for you (it seems).

Against 2.5.36

thanks
john

--- linux-linus/mm/slab.c	Wed Sep 18 19:48:54 2002
+++ linux/mm/slab.c	Wed Sep 18 22:27:32 2002
@@ -1018,6 +1018,8 @@
  * cache being allocated each time a module is loaded and unloaded, if the
  * module doesn't have persistent in-kernel storage across loads and unloads.
  *
+ * The cache must be empty before calling this function.
+ *
  * The caller must guarantee that noone will allocate memory from the cache
  * during the kmem_cache_destroy().
  */